./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 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_spec1_product22.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 20892c88f0ca6c150ca3aad2ee45b915645ec1b7 .............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 20:11:26,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:11:26,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:11:26,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:11:26,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:11:26,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:11:26,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:11:26,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:11:26,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:11:26,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:11:26,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:11:26,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:11:26,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:11:26,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:11:26,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:11:26,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:11:26,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:11:26,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:11:26,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:11:26,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:11:26,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:11:26,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:11:26,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:11:26,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:11:26,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:11:26,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:11:26,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:11:26,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:11:26,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:11:26,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:11:26,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:11:26,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:11:26,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:11:26,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:11:26,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:11:26,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:11:26,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:11:26,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:11:26,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:11:26,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:11:26,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:11:26,681 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:11:26,712 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:11:26,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:11:26,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:11:26,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:11:26,714 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:11:26,714 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:11:26,714 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:11:26,715 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:11:26,715 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:11:26,715 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:11:26,715 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:11:26,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:11:26,716 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:11:26,716 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:11:26,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:11:26,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:11:26,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:11:26,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:11:26,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:11:26,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:11:26,716 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:11:26,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:11:26,717 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:11:26,717 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:11:26,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:11:26,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:11:26,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:11:26,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:11:26,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:11:26,717 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:11:26,718 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:11:26,718 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20892c88f0ca6c150ca3aad2ee45b915645ec1b7 [2021-07-06 20:11:26,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:11:27,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:11:27,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:11:27,005 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:11:27,005 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:11:27,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product22.cil.c [2021-07-06 20:11:27,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c71c72774/809ac475e467438ea12d77ebd45590ae/FLAG6caf66897 [2021-07-06 20:11:27,381 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:11:27,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product22.cil.c [2021-07-06 20:11:27,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c71c72774/809ac475e467438ea12d77ebd45590ae/FLAG6caf66897 [2021-07-06 20:11:27,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c71c72774/809ac475e467438ea12d77ebd45590ae [2021-07-06 20:11:27,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:11:27,791 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:11:27,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:11:27,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:11:27,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:11:27,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:11:27" (1/1) ... [2021-07-06 20:11:27,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7945c649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:27, skipping insertion in model container [2021-07-06 20:11:27,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:11:27" (1/1) ... [2021-07-06 20:11:27,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:11:27,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:11:28,049 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product22.cil.c[13152,13165] [2021-07-06 20:11:28,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:11:28,079 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:11:28,132 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product22.cil.c[13152,13165] [2021-07-06 20:11:28,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:11:28,173 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:11:28,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:28 WrapperNode [2021-07-06 20:11:28,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:11:28,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:11:28,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:11:28,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:11:28,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:28" (1/1) ... [2021-07-06 20:11:28,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:28" (1/1) ... [2021-07-06 20:11:28,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:11:28,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:11:28,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:11:28,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:11:28,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:28" (1/1) ... [2021-07-06 20:11:28,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:28" (1/1) ... [2021-07-06 20:11:28,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:28" (1/1) ... [2021-07-06 20:11:28,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:28" (1/1) ... [2021-07-06 20:11:28,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:28" (1/1) ... [2021-07-06 20:11:28,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:28" (1/1) ... [2021-07-06 20:11:28,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:28" (1/1) ... [2021-07-06 20:11:28,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:11:28,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:11:28,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:11:28,252 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:11:28,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:28" (1/1) ... [2021-07-06 20:11:28,263 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:11:28,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:11:28,281 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) [2021-07-06 20:11:28,315 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 [2021-07-06 20:11:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:11:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:11:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:11:28,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:11:28,913 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:11:28,913 INFO L299 CfgBuilder]: Removed 158 assume(true) statements. [2021-07-06 20:11:28,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:11:28 BoogieIcfgContainer [2021-07-06 20:11:28,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:11:28,915 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:11:28,915 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:11:28,917 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:11:28,918 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:11:28,918 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:11:27" (1/3) ... [2021-07-06 20:11:28,918 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5674f66c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:11:28, skipping insertion in model container [2021-07-06 20:11:28,918 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:11:28,918 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:28" (2/3) ... [2021-07-06 20:11:28,919 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5674f66c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:11:28, skipping insertion in model container [2021-07-06 20:11:28,919 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:11:28,919 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:11:28" (3/3) ... [2021-07-06 20:11:28,920 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product22.cil.c [2021-07-06 20:11:28,951 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:11:28,951 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:11:28,951 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:11:28,951 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:11:28,952 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:11:28,952 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:11:28,952 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:11:28,952 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:11:28,967 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 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) [2021-07-06 20:11:28,986 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-07-06 20:11:28,987 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:11:28,987 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:11:28,991 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:11:28,991 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:11:28,991 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:11:28,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 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) [2021-07-06 20:11:28,995 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-07-06 20:11:28,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:11:28,995 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:11:28,996 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:11:28,996 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:11:28,999 INFO L791 eck$LassoCheckResult]: Stem: 93#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 13#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~2, main_~tmp~1;havoc main_~retValue_acc~2;havoc main_~tmp~1; 44#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 57#L75true main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 63#L196true assume 0 != main_~tmp~1; 34#L172true havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 64#L91-1true [2021-07-06 20:11:28,999 INFO L793 eck$LassoCheckResult]: Loop: 64#L91-1true assume !false; 87#L878true assume test_~splverifierCounter~0 < 4; 45#L879true test_~tmp~8 := test_#t~nondet76;havoc test_#t~nondet76; 49#L887true assume !(0 != test_~tmp~8); 51#L887-1true test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 97#L897true assume !(0 != test_~tmp___0~2); 99#L897-1true test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 27#L907true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 35#L915-2true assume !(0 != ~pumpRunning~0); 95#L688true assume !(0 != ~systemActive~0); 21#L695true havoc __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_#t~ret9, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 7#L632-1true __utac_acc__Specification1_spec__1_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret8;havoc __utac_acc__Specification1_spec__1_#t~ret8; 66#L91true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 64#L91-1true [2021-07-06 20:11:29,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:11:29,003 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-07-06 20:11:29,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:11:29,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138272605] [2021-07-06 20:11:29,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:11:29,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:11:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:29,159 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:29,206 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:29,236 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:11:29,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:11:29,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1679344189, now seen corresponding path program 1 times [2021-07-06 20:11:29,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:11:29,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136973555] [2021-07-06 20:11:29,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:11:29,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:11:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:11:29,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:29,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:11:29,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:29,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:11:29,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:29,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:11:29,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:11:29,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:11:29,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136973555] [2021-07-06 20:11:29,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136973555] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:11:29,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:11:29,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:11:29,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732334764] [2021-07-06 20:11:29,306 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-07-06 20:11:29,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:11:29,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 20:11:29,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 20:11:29,316 INFO L87 Difference]: Start difference. First operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 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 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-07-06 20:11:29,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:11:29,337 INFO L93 Difference]: Finished difference Result 102 states and 143 transitions. [2021-07-06 20:11:29,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 20:11:29,339 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 143 transitions. [2021-07-06 20:11:29,341 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-07-06 20:11:29,344 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 95 states and 135 transitions. [2021-07-06 20:11:29,344 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2021-07-06 20:11:29,345 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2021-07-06 20:11:29,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 135 transitions. [2021-07-06 20:11:29,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:11:29,346 INFO L681 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-07-06 20:11:29,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 135 transitions. [2021-07-06 20:11:29,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-07-06 20:11:29,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 95 states have (on average 1.4210526315789473) internal successors, (135), 94 states have internal predecessors, (135), 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) [2021-07-06 20:11:29,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2021-07-06 20:11:29,364 INFO L704 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-07-06 20:11:29,364 INFO L587 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-07-06 20:11:29,364 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:11:29,364 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 135 transitions. [2021-07-06 20:11:29,365 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-07-06 20:11:29,365 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:11:29,365 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:11:29,366 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:11:29,366 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:11:29,366 INFO L791 eck$LassoCheckResult]: Stem: 289#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 249#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~2, main_~tmp~1;havoc main_~retValue_acc~2;havoc main_~tmp~1; 250#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 302#L75 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 306#L196 assume 0 != main_~tmp~1; 290#L172 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 213#L91-1 [2021-07-06 20:11:29,366 INFO L793 eck$LassoCheckResult]: Loop: 213#L91-1 assume !false; 214#L878 assume test_~splverifierCounter~0 < 4; 275#L879 test_~tmp~8 := test_#t~nondet76;havoc test_#t~nondet76; 303#L887 assume !(0 != test_~tmp~8); 287#L887-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 295#L897 assume !(0 != test_~tmp___0~2); 296#L897-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 281#L907 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 282#L915-2 assume !(0 != ~pumpRunning~0); 292#L688 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 285#L746 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret56, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 270#L720-1 assume !(0 != ~pumpRunning~0); 248#L695 havoc __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_#t~ret9, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 230#L632-1 __utac_acc__Specification1_spec__1_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret8;havoc __utac_acc__Specification1_spec__1_#t~ret8; 222#L91 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 213#L91-1 [2021-07-06 20:11:29,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:11:29,366 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-07-06 20:11:29,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:11:29,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087202828] [2021-07-06 20:11:29,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:11:29,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:11:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:29,404 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:29,431 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:29,439 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:11:29,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:11:29,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1091435467, now seen corresponding path program 1 times [2021-07-06 20:11:29,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:11:29,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824756114] [2021-07-06 20:11:29,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:11:29,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:11:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:29,442 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:29,444 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:29,460 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:11:29,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:11:29,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1358149583, now seen corresponding path program 1 times [2021-07-06 20:11:29,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:11:29,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347506104] [2021-07-06 20:11:29,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:11:29,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:11:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:29,496 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:29,522 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:29,530 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:11:29,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:29,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-06 20:12:09,381 WARN L205 SmtUtils]: Spent 39.76 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-07-06 20:12:09,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:12:09,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2127 [2021-07-06 20:12:29,224 WARN L205 SmtUtils]: Spent 19.80 s on a formula simplification that was a NOOP. DAG size: 433 [2021-07-06 20:12:29,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:12:29 BoogieIcfgContainer [2021-07-06 20:12:29,330 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:12:29,330 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:12:29,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:12:29,331 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:12:29,331 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:11:28" (3/4) ... [2021-07-06 20:12:29,333 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:12:29,372 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:12:29,372 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:12:29,373 INFO L168 Benchmark]: Toolchain (without parser) took 61582.02 ms. Allocated memory was 58.7 MB in the beginning and 115.3 MB in the end (delta: 56.6 MB). Free memory was 36.3 MB in the beginning and 71.8 MB in the end (delta: -35.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. [2021-07-06 20:12:29,374 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 58.7 MB. Free memory was 40.0 MB in the beginning and 39.9 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:12:29,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.09 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 36.2 MB in the beginning and 44.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-06 20:12:29,375 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.48 ms. Allocated memory is still 71.3 MB. Free memory was 44.7 MB in the beginning and 41.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:12:29,375 INFO L168 Benchmark]: Boogie Preprocessor took 20.44 ms. Allocated memory is still 71.3 MB. Free memory was 41.3 MB in the beginning and 38.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:12:29,375 INFO L168 Benchmark]: RCFGBuilder took 662.38 ms. Allocated memory is still 71.3 MB. Free memory was 38.7 MB in the beginning and 33.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2021-07-06 20:12:29,376 INFO L168 Benchmark]: BuchiAutomizer took 60414.97 ms. Allocated memory was 71.3 MB in the beginning and 115.3 MB in the end (delta: 44.0 MB). Free memory was 33.6 MB in the beginning and 73.9 MB in the end (delta: -40.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 16.1 GB. [2021-07-06 20:12:29,376 INFO L168 Benchmark]: Witness Printer took 42.03 ms. Allocated memory is still 115.3 MB. Free memory was 73.9 MB in the beginning and 71.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:12:29,379 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 58.7 MB. Free memory was 40.0 MB in the beginning and 39.9 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 382.09 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 36.2 MB in the beginning and 44.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.48 ms. Allocated memory is still 71.3 MB. Free memory was 44.7 MB in the beginning and 41.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.44 ms. Allocated memory is still 71.3 MB. Free memory was 41.3 MB in the beginning and 38.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 662.38 ms. Allocated memory is still 71.3 MB. Free memory was 38.7 MB in the beginning and 33.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 60414.97 ms. Allocated memory was 71.3 MB in the beginning and 115.3 MB in the end (delta: 44.0 MB). Free memory was 33.6 MB in the beginning and 73.9 MB in the end (delta: -40.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 16.1 GB. * Witness Printer took 42.03 ms. Allocated memory is still 115.3 MB. Free memory was 73.9 MB in the beginning and 71.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 95 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 60.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 60.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 10.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 95 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 140 SDtfs, 140 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.3ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 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: 877]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=16881} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=16900, retValue_acc=0, NULL=16881, NULL=0, NULL=0, NULL=0, NULL=16890, NULL=0, NULL=0, NULL=16887, NULL=16903, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f70ab83=0, NULL=16883, NULL=0, NULL=16892, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b9063b0=0, NULL=16884, tmp=0, tmp___1=0, NULL=16902, tmp=0, NULL=0, NULL=0, tmp___0=0, NULL=16894, cleanupTimeShifts=4, NULL=16904, NULL=16897, NULL=16893, NULL=16896, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29cf8e34=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@493389dd=72, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12505e09=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57094af8=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76416a1f=0, NULL=16888, NULL=16899, NULL=0, NULL=0, NULL=16882, \result=1, head=0, pumpRunning=0, NULL=16891, \result=0, NULL=16889, NULL=16907, tmp=1, NULL=0, NULL=0, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ac347ac=0, NULL=0, NULL=0, NULL=16898, retValue_acc=1, tmp___2=72, tmp___0=0, NULL=16901, splverifierCounter=0, NULL=0, \result=0, NULL=16908, NULL=16905, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6568b80e=0, head=0, tmp=0, NULL=16885, NULL=0, NULL=0, NULL=16895, NULL=16886, NULL=16906, NULL=16909} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L109] int cleanupTimeShifts = 4; [L379] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L589] int waterLevel = 1; [L590] int methaneLevelCritical = 0; [L681] int pumpRunning = 0; [L682] int systemActive = 1; [L187] int retValue_acc ; [L188] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L194] tmp = valid_product() [L196] COND TRUE \read(tmp) [L868] int splverifierCounter ; [L869] int tmp ; [L870] int tmp___0 ; [L871] int tmp___1 ; [L872] int tmp___2 ; [L875] splverifierCounter = 0 Loop: [L877] COND TRUE 1 [L879] COND TRUE splverifierCounter < 4 [L885] tmp = __VERIFIER_nondet_int() [L887] COND FALSE !(\read(tmp)) [L895] tmp___0 = __VERIFIER_nondet_int() [L897] COND FALSE !(\read(tmp___0)) [L905] tmp___2 = __VERIFIER_nondet_int() [L907] COND TRUE \read(tmp___2) [L862] systemActive = 1 [L688] COND FALSE !(\read(pumpRunning)) [L695] COND TRUE \read(systemActive) [L743] int tmp ; [L746] COND FALSE !(\read(pumpRunning)) [L717] int tmp ; [L720] COND FALSE !(\read(pumpRunning)) [L84] int tmp ; [L85] int tmp___0 ; [L628] int retValue_acc ; [L631] retValue_acc = methaneLevelCritical [L632] return (retValue_acc); [L89] tmp = isMethaneLevelCritical() [L91] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:12:29,438 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...