./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 ae007674 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-dev-ae00767 [2021-12-28 09:40:03,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:40:03,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:40:03,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:40:03,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:40:03,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:40:03,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:40:03,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:40:03,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:40:03,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:40:03,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:40:03,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:40:03,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:40:03,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:40:03,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:40:03,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:40:03,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:40:03,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:40:03,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:40:03,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:40:03,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:40:03,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:40:03,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:40:03,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:40:03,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:40:03,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:40:03,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:40:03,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:40:03,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:40:03,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:40:03,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:40:03,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:40:03,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:40:03,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:40:03,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:40:03,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:40:03,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:40:03,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:40:03,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:40:03,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:40:03,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:40:03,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:40:03,413 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:40:03,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:40:03,415 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:40:03,415 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:40:03,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:40:03,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:40:03,417 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:40:03,417 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:40:03,417 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:40:03,417 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:40:03,418 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:40:03,418 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:40:03,418 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:40:03,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:40:03,418 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:40:03,418 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:40:03,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:40:03,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:40:03,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:40:03,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:40:03,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:40:03,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:40:03,419 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:40:03,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:40:03,420 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:40:03,420 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:40:03,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:40:03,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:40:03,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:40:03,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:40:03,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:40:03,421 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:40:03,422 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e02099a7691e56a2269c7f6adf0fcb5caba1ee7f52ae5d6ac320766d29d8d07 [2021-12-28 09:40:03,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:40:03,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:40:03,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:40:03,702 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:40:03,703 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:40:03,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2021-12-28 09:40:03,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5624b160c/46ceb024a5c949fc8985609c88f43a4b/FLAG3c56e11e0 [2021-12-28 09:40:04,156 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:40:04,159 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2021-12-28 09:40:04,171 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5624b160c/46ceb024a5c949fc8985609c88f43a4b/FLAG3c56e11e0 [2021-12-28 09:40:04,185 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5624b160c/46ceb024a5c949fc8985609c88f43a4b [2021-12-28 09:40:04,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:40:04,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:40:04,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:40:04,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:40:04,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:40:04,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:40:04" (1/1) ... [2021-12-28 09:40:04,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30892c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:04, skipping insertion in model container [2021-12-28 09:40:04,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:40:04" (1/1) ... [2021-12-28 09:40:04,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:40:04,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:40:04,428 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] [2021-12-28 09:40:04,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:40:04,515 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:40:04,541 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] [2021-12-28 09:40:04,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:40:04,590 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:40:04,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:04 WrapperNode [2021-12-28 09:40:04,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:40:04,592 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:40:04,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:40:04,593 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:40:04,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:04" (1/1) ... [2021-12-28 09:40:04,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:04" (1/1) ... [2021-12-28 09:40:04,654 INFO L137 Inliner]: procedures = 53, calls = 150, calls flagged for inlining = 47, calls inlined = 48, statements flattened = 405 [2021-12-28 09:40:04,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:40:04,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:40:04,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:40:04,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:40:04,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:04" (1/1) ... [2021-12-28 09:40:04,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:04" (1/1) ... [2021-12-28 09:40:04,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:04" (1/1) ... [2021-12-28 09:40:04,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:04" (1/1) ... [2021-12-28 09:40:04,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:04" (1/1) ... [2021-12-28 09:40:04,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:04" (1/1) ... [2021-12-28 09:40:04,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:04" (1/1) ... [2021-12-28 09:40:04,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:40:04,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:40:04,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:40:04,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:40:04,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:04" (1/1) ... [2021-12-28 09:40:04,699 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:40:04,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:40:04,720 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) [2021-12-28 09:40:04,727 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 [2021-12-28 09:40:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:40:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:40:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:40:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:40:04,834 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:40:04,835 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:40:05,131 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:40:05,137 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:40:05,139 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 09:40:05,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:05 BoogieIcfgContainer [2021-12-28 09:40:05,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:40:05,142 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:40:05,142 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:40:05,144 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:40:05,144 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:05,145 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:40:04" (1/3) ... [2021-12-28 09:40:05,145 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33510f04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:40:05, skipping insertion in model container [2021-12-28 09:40:05,145 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:05,145 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:04" (2/3) ... [2021-12-28 09:40:05,146 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33510f04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:40:05, skipping insertion in model container [2021-12-28 09:40:05,146 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:05,146 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:05" (3/3) ... [2021-12-28 09:40:05,147 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2021-12-28 09:40:05,174 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:40:05,175 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:40:05,175 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:40:05,175 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:40:05,175 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:40:05,175 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:40:05,175 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:40:05,175 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:40:05,186 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) [2021-12-28 09:40:05,200 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2021-12-28 09:40:05,200 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:05,200 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:05,204 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:05,205 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:05,205 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:40:05,205 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) [2021-12-28 09:40:05,209 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2021-12-28 09:40:05,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:05,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:05,210 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:05,210 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:05,234 INFO L791 eck$LassoCheckResult]: Stem: 100#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; 35#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; 50#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 103#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; 22#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; 5#L276true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 73#L250true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 98#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; 75#L465-2true [2021-12-28 09:40:05,235 INFO L793 eck$LassoCheckResult]: Loop: 75#L465-2true assume !false; 106#L466true assume test_~splverifierCounter~0#1 < 4; 109#L467true test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 59#L475true assume !(0 != test_~tmp~3#1); 24#L475-2true test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 78#L485true assume !(0 != test_~tmp___0~1#1); 9#L485-2true test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 21#L495true assume 0 != test_~tmp___2~0#1; 82#L501-2true assume { :begin_inline_timeShift } true; 61#L310true assume !(0 != ~pumpRunning~0); 6#L310-2true assume !(0 != ~systemActive~0); 12#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; 52#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; 81#L903true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 96#L903-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 20#L327true assume { :end_inline_timeShift } true; 75#L465-2true [2021-12-28 09:40:05,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:05,239 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-28 09:40:05,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:05,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082458148] [2021-12-28 09:40:05,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:05,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:05,317 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:05,348 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:05,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:05,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1986238090, now seen corresponding path program 1 times [2021-12-28 09:40:05,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:05,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432957483] [2021-12-28 09:40:05,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:05,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:05,357 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:05,362 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:05,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:05,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1823950707, now seen corresponding path program 1 times [2021-12-28 09:40:05,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:05,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254461202] [2021-12-28 09:40:05,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:05,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:05,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:40:05,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:05,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254461202] [2021-12-28 09:40:05,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254461202] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:05,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:05,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:40:05,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437092799] [2021-12-28 09:40:05,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:05,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:05,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 09:40:05,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 09:40:05,612 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) [2021-12-28 09:40:05,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:05,681 INFO L93 Difference]: Finished difference Result 106 states and 137 transitions. [2021-12-28 09:40:05,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 09:40:05,685 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 137 transitions. [2021-12-28 09:40:05,689 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2021-12-28 09:40:05,692 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 96 states and 127 transitions. [2021-12-28 09:40:05,693 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 96 [2021-12-28 09:40:05,693 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 96 [2021-12-28 09:40:05,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 96 states and 127 transitions. [2021-12-28 09:40:05,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:05,694 INFO L681 BuchiCegarLoop]: Abstraction has 96 states and 127 transitions. [2021-12-28 09:40:05,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states and 127 transitions. [2021-12-28 09:40:05,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-12-28 09:40:05,728 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) [2021-12-28 09:40:05,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 127 transitions. [2021-12-28 09:40:05,730 INFO L704 BuchiCegarLoop]: Abstraction has 96 states and 127 transitions. [2021-12-28 09:40:05,730 INFO L587 BuchiCegarLoop]: Abstraction has 96 states and 127 transitions. [2021-12-28 09:40:05,730 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:40:05,730 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 127 transitions. [2021-12-28 09:40:05,731 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2021-12-28 09:40:05,731 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:05,731 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:05,732 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:05,732 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:05,732 INFO L791 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 [2021-12-28 09:40:05,732 INFO L793 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 [2021-12-28 09:40:05,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:05,733 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-28 09:40:05,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:05,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090852668] [2021-12-28 09:40:05,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:05,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:05,745 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:05,763 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:05,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:05,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1458489579, now seen corresponding path program 1 times [2021-12-28 09:40:05,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:05,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100407867] [2021-12-28 09:40:05,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:05,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:05,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:40:05,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:05,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100407867] [2021-12-28 09:40:05,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100407867] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:05,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:05,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 09:40:05,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984071411] [2021-12-28 09:40:05,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:05,798 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-28 09:40:05,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:05,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 09:40:05,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 09:40:05,799 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) [2021-12-28 09:40:05,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:05,831 INFO L93 Difference]: Finished difference Result 151 states and 195 transitions. [2021-12-28 09:40:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 09:40:05,832 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 151 states and 195 transitions. [2021-12-28 09:40:05,834 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2021-12-28 09:40:05,835 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 151 states to 151 states and 195 transitions. [2021-12-28 09:40:05,836 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 151 [2021-12-28 09:40:05,836 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 151 [2021-12-28 09:40:05,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 151 states and 195 transitions. [2021-12-28 09:40:05,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:05,837 INFO L681 BuchiCegarLoop]: Abstraction has 151 states and 195 transitions. [2021-12-28 09:40:05,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states and 195 transitions. [2021-12-28 09:40:05,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2021-12-28 09:40:05,842 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) [2021-12-28 09:40:05,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 195 transitions. [2021-12-28 09:40:05,843 INFO L704 BuchiCegarLoop]: Abstraction has 151 states and 195 transitions. [2021-12-28 09:40:05,844 INFO L587 BuchiCegarLoop]: Abstraction has 151 states and 195 transitions. [2021-12-28 09:40:05,844 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:40:05,844 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 151 states and 195 transitions. [2021-12-28 09:40:05,845 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2021-12-28 09:40:05,845 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:05,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:05,846 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:05,846 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:05,846 INFO L791 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 [2021-12-28 09:40:05,847 INFO L793 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 [2021-12-28 09:40:05,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:05,854 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-28 09:40:05,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:05,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533738250] [2021-12-28 09:40:05,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:05,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:05,864 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:05,875 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:05,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:05,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1445918989, now seen corresponding path program 1 times [2021-12-28 09:40:05,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:05,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480557738] [2021-12-28 09:40:05,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:05,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:05,881 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:05,886 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:05,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:05,887 INFO L85 PathProgramCache]: Analyzing trace with hash -176468950, now seen corresponding path program 1 times [2021-12-28 09:40:05,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:05,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115458950] [2021-12-28 09:40:05,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:05,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:05,898 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:05,911 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:08,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:40:08 BoogieIcfgContainer [2021-12-28 09:40:08,339 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:40:08,339 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:40:08,339 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:40:08,340 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:40:08,340 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:05" (3/4) ... [2021-12-28 09:40:08,342 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-28 09:40:08,387 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 09:40:08,388 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:40:08,388 INFO L158 Benchmark]: Toolchain (without parser) took 4199.87ms. Allocated memory was 58.7MB in the beginning and 117.4MB in the end (delta: 58.7MB). Free memory was 37.2MB in the beginning and 77.1MB in the end (delta: -39.9MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2021-12-28 09:40:08,389 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 58.7MB. Free memory was 41.3MB in the beginning and 41.3MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:40:08,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.31ms. Allocated memory is still 58.7MB. Free memory was 37.0MB in the beginning and 34.3MB in the end (delta: 2.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-28 09:40:08,390 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.21ms. Allocated memory is still 58.7MB. Free memory was 34.3MB in the beginning and 31.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:08,390 INFO L158 Benchmark]: Boogie Preprocessor took 38.11ms. Allocated memory is still 58.7MB. Free memory was 31.5MB in the beginning and 29.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:08,391 INFO L158 Benchmark]: RCFGBuilder took 447.67ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 29.6MB in the beginning and 41.3MB in the end (delta: -11.7MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2021-12-28 09:40:08,391 INFO L158 Benchmark]: BuchiAutomizer took 3196.99ms. Allocated memory was 73.4MB in the beginning and 117.4MB in the end (delta: 44.0MB). Free memory was 41.3MB in the beginning and 80.1MB in the end (delta: -38.8MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2021-12-28 09:40:08,401 INFO L158 Benchmark]: Witness Printer took 48.55ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 77.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:08,404 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 58.7MB. Free memory was 41.3MB in the beginning and 41.3MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.31ms. Allocated memory is still 58.7MB. Free memory was 37.0MB in the beginning and 34.3MB in the end (delta: 2.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.21ms. Allocated memory is still 58.7MB. Free memory was 34.3MB in the beginning and 31.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.11ms. Allocated memory is still 58.7MB. Free memory was 31.5MB in the beginning and 29.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 447.67ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 29.6MB in the beginning and 41.3MB in the end (delta: -11.7MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3196.99ms. Allocated memory was 73.4MB in the beginning and 117.4MB in the end (delta: 44.0MB). Free memory was 41.3MB in the beginning and 80.1MB in the end (delta: -38.8MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. * Witness Printer took 48.55ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 77.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 151 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. 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 151 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 622 SdHoareTripleChecker+Valid, 0.1s 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 - 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@68813630=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@65410181=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6336f1cd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@448f579e=0, cleanupTimeShifts=4, tmp=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e754916=0, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31c33e09=0, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43818804=0, systemActive=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@580afae8=29, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73fddfb9=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! [2021-12-28 09:40:08,464 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)