./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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_product31.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 465164c9d6bff671f00f1c9497719b8ddd91e991 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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-dev-20ed64e [2021-08-27 16:02:59,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:02:59,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:02:59,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:02:59,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:02:59,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:02:59,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:02:59,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:02:59,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:02:59,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:02:59,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:02:59,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:02:59,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:02:59,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:02:59,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:02:59,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:02:59,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:02:59,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:02:59,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:02:59,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:02:59,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:02:59,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:02:59,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:02:59,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:02:59,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:02:59,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:02:59,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:02:59,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:02:59,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:02:59,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:02:59,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:02:59,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:02:59,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:02:59,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:02:59,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:02:59,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:02:59,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:02:59,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:02:59,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:02:59,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:02:59,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:02:59,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:02:59,228 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:02:59,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:02:59,230 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:02:59,230 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:02:59,231 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:02:59,231 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:02:59,231 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:02:59,231 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:02:59,232 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:02:59,232 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:02:59,232 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:02:59,233 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:02:59,233 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:02:59,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:02:59,233 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:02:59,233 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:02:59,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:02:59,233 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:02:59,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:02:59,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:02:59,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:02:59,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:02:59,234 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:02:59,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:02:59,234 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:02:59,235 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:02:59,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:02:59,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:02:59,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:02:59,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:02:59,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:02:59,235 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:02:59,237 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:02:59,237 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 465164c9d6bff671f00f1c9497719b8ddd91e991 [2021-08-27 16:02:59,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:02:59,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:02:59,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:02:59,501 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:02:59,501 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:02:59,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product31.cil.c [2021-08-27 16:02:59,546 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/231fb7c88/fbaf2b03d4fe4cc399844725c2ea5c71/FLAGc0be2acce [2021-08-27 16:02:59,925 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:02:59,925 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product31.cil.c [2021-08-27 16:02:59,933 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/231fb7c88/fbaf2b03d4fe4cc399844725c2ea5c71/FLAGc0be2acce [2021-08-27 16:03:00,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/231fb7c88/fbaf2b03d4fe4cc399844725c2ea5c71 [2021-08-27 16:03:00,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:03:00,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:03:00,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:03:00,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:03:00,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:03:00,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:03:00" (1/1) ... [2021-08-27 16:03:00,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16f123bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:03:00, skipping insertion in model container [2021-08-27 16:03:00,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:03:00" (1/1) ... [2021-08-27 16:03:00,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:03:00,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:03:00,502 WARN L228 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_product31.cil.c[2303,2316] [2021-08-27 16:03:00,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:03:00,650 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:03:00,670 WARN L228 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_product31.cil.c[2303,2316] [2021-08-27 16:03:00,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:03:00,735 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:03:00,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:03:00 WrapperNode [2021-08-27 16:03:00,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:03:00,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:03:00,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:03:00,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:03:00,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:03:00" (1/1) ... [2021-08-27 16:03:00,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:03:00" (1/1) ... [2021-08-27 16:03:00,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:03:00,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:03:00,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:03:00,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:03:00,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:03:00" (1/1) ... [2021-08-27 16:03:00,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:03:00" (1/1) ... [2021-08-27 16:03:00,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:03:00" (1/1) ... [2021-08-27 16:03:00,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:03:00" (1/1) ... [2021-08-27 16:03:00,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:03:00" (1/1) ... [2021-08-27 16:03:00,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:03:00" (1/1) ... [2021-08-27 16:03:00,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:03:00" (1/1) ... [2021-08-27 16:03:00,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:03:00,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:03:00,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:03:00,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:03:00,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:03:00" (1/1) ... [2021-08-27 16:03:00,883 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:03:00,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:03:00,895 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) [2021-08-27 16:03:00,901 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 [2021-08-27 16:03:00,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:03:00,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:03:00,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:03:00,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:03:01,532 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:03:01,533 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-08-27 16:03:01,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:03:01 BoogieIcfgContainer [2021-08-27 16:03:01,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:03:01,536 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:03:01,536 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:03:01,538 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:03:01,538 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:03:01,538 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:03:00" (1/3) ... [2021-08-27 16:03:01,539 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47bb7893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:03:01, skipping insertion in model container [2021-08-27 16:03:01,539 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:03:01,539 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:03:00" (2/3) ... [2021-08-27 16:03:01,539 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47bb7893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:03:01, skipping insertion in model container [2021-08-27 16:03:01,539 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:03:01,540 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:03:01" (3/3) ... [2021-08-27 16:03:01,540 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product31.cil.c [2021-08-27 16:03:01,570 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:03:01,570 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:03:01,571 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:03:01,571 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:03:01,571 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:03:01,571 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:03:01,571 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:03:01,571 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:03:01,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.5233644859813085) internal successors, (163), 107 states have internal predecessors, (163), 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) [2021-08-27 16:03:01,607 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-08-27 16:03:01,607 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:03:01,607 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:03:01,612 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:03:01,613 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:03:01,613 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:03:01,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.5233644859813085) internal successors, (163), 107 states have internal predecessors, (163), 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) [2021-08-27 16:03:01,618 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-08-27 16:03:01,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:03:01,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:03:01,618 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:03:01,618 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:03:01,621 INFO L791 eck$LassoCheckResult]: Stem: 104#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 34#L-1true havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~8, main_~tmp~9;havoc main_~retValue_acc~8;havoc main_~tmp~9; 15#L367true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 14#L375true main_#t~ret70 := valid_product_#res;main_~tmp~9 := main_#t~ret70;havoc main_#t~ret70; 27#L868true assume 0 != main_~tmp~9; 60#L844true ~methAndRunningLastTime~0 := 0; 54#L752true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 109#L763-1true [2021-08-27 16:03:01,622 INFO L793 eck$LassoCheckResult]: Loop: 109#L763-1true assume !false; 33#L58true assume test_~splverifierCounter~0 < 4; 88#L59true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 102#L67true assume !(0 != test_~tmp~0); 80#L67-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 63#L77true assume !(0 != test_~tmp___0~0); 76#L77-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 42#L87true assume 0 != test_~tmp___2~0; 95#L93-1true assume !(0 != ~pumpRunning~0); 28#L139true assume !(0 != ~systemActive~0); 73#L146true havoc __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 103#L926-1true __utac_acc__Specification2_spec__2_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret68;havoc __utac_acc__Specification2_spec__2_#t~ret68; 51#L763true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; 109#L763-1true [2021-08-27 16:03:01,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:03:01,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-27 16:03:01,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:03:01,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260667975] [2021-08-27 16:03:01,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:03:01,631 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:03:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:03:01,755 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:03:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:03:01,828 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:03:01,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:03:01,830 INFO L82 PathProgramCache]: Analyzing trace with hash 12573267, now seen corresponding path program 1 times [2021-08-27 16:03:01,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:03:01,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389144930] [2021-08-27 16:03:01,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:03:01,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:03:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:03:01,835 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:03:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:03:01,840 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:03:01,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:03:01,841 INFO L82 PathProgramCache]: Analyzing trace with hash 845869773, now seen corresponding path program 1 times [2021-08-27 16:03:01,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:03:01,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461650075] [2021-08-27 16:03:01,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:03:01,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:03:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:03:01,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:03:01,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:03:01,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461650075] [2021-08-27 16:03:01,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461650075] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:03:01,921 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:03:01,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 16:03:01,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644836424] [2021-08-27 16:03:02,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:03:02,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 16:03:02,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-27 16:03:02,026 INFO L87 Difference]: Start difference. First operand has 108 states, 107 states have (on average 1.5233644859813085) internal successors, (163), 107 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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) [2021-08-27 16:03:02,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:03:02,241 INFO L93 Difference]: Finished difference Result 262 states and 373 transitions. [2021-08-27 16:03:02,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 16:03:02,243 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 373 transitions. [2021-08-27 16:03:02,247 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 167 [2021-08-27 16:03:02,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 241 states and 352 transitions. [2021-08-27 16:03:02,251 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 241 [2021-08-27 16:03:02,251 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 241 [2021-08-27 16:03:02,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 241 states and 352 transitions. [2021-08-27 16:03:02,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:03:02,253 INFO L681 BuchiCegarLoop]: Abstraction has 241 states and 352 transitions. [2021-08-27 16:03:02,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states and 352 transitions. [2021-08-27 16:03:02,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 145. [2021-08-27 16:03:02,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 145 states have (on average 1.4551724137931035) internal successors, (211), 144 states have internal predecessors, (211), 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) [2021-08-27 16:03:02,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 211 transitions. [2021-08-27 16:03:02,274 INFO L704 BuchiCegarLoop]: Abstraction has 145 states and 211 transitions. [2021-08-27 16:03:02,274 INFO L587 BuchiCegarLoop]: Abstraction has 145 states and 211 transitions. [2021-08-27 16:03:02,275 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:03:02,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 145 states and 211 transitions. [2021-08-27 16:03:02,276 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2021-08-27 16:03:02,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:03:02,281 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:03:02,282 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:03:02,282 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:03:02,282 INFO L791 eck$LassoCheckResult]: Stem: 488#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 439#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~8, main_~tmp~9;havoc main_~retValue_acc~8;havoc main_~tmp~9; 412#L367 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 410#L375 main_#t~ret70 := valid_product_#res;main_~tmp~9 := main_#t~ret70;havoc main_#t~ret70; 411#L868 assume 0 != main_~tmp~9; 427#L844 ~methAndRunningLastTime~0 := 0; 458#L752 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 393#L763-1 [2021-08-27 16:03:02,282 INFO L793 eck$LassoCheckResult]: Loop: 393#L763-1 assume !false; 437#L58 assume test_~splverifierCounter~0 < 4; 438#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 485#L67 assume !(0 != test_~tmp~0); 480#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 466#L77 assume !(0 != test_~tmp___0~0); 468#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 447#L87 assume 0 != test_~tmp___2~0; 435#L93-1 assume !(0 != ~pumpRunning~0); 402#L139 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 428#L197 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret11, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 424#L171-1 assume !(0 != ~pumpRunning~0); 389#L146 havoc __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 475#L926-1 __utac_acc__Specification2_spec__2_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret68;havoc __utac_acc__Specification2_spec__2_#t~ret68; 454#L763 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; 393#L763-1 [2021-08-27 16:03:02,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:03:02,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-27 16:03:02,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:03:02,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242778155] [2021-08-27 16:03:02,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:03:02,284 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:03:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:03:02,312 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:03:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:03:02,344 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:03:02,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:03:02,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1343596421, now seen corresponding path program 1 times [2021-08-27 16:03:02,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:03:02,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872502848] [2021-08-27 16:03:02,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:03:02,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:03:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:03:02,348 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:03:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:03:02,352 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:03:02,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:03:02,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1017345665, now seen corresponding path program 1 times [2021-08-27 16:03:02,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:03:02,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924969609] [2021-08-27 16:03:02,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:03:02,353 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:03:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:03:02,376 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:03:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:03:02,408 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:03:42,711 WARN L207 SmtUtils]: Spent 40.22 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-27 16:04:24,245 WARN L207 SmtUtils]: Spent 20.80 s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-27 16:04:24,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:04:24 BoogieIcfgContainer [2021-08-27 16:04:24,356 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:04:24,356 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:04:24,356 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:04:24,357 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:04:24,357 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:03:01" (3/4) ... [2021-08-27 16:04:24,359 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:04:24,383 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:04:24,383 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:04:24,384 INFO L168 Benchmark]: Toolchain (without parser) took 84069.77 ms. Allocated memory was 65.0 MB in the beginning and 113.2 MB in the end (delta: 48.2 MB). Free memory was 44.3 MB in the beginning and 85.2 MB in the end (delta: -40.9 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:04:24,384 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 65.0 MB. Free memory is still 46.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:04:24,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.94 ms. Allocated memory is still 65.0 MB. Free memory was 44.2 MB in the beginning and 41.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 16:04:24,385 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.03 ms. Allocated memory is still 65.0 MB. Free memory was 41.0 MB in the beginning and 37.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:04:24,385 INFO L168 Benchmark]: Boogie Preprocessor took 55.58 ms. Allocated memory is still 65.0 MB. Free memory was 37.5 MB in the beginning and 34.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:04:24,385 INFO L168 Benchmark]: RCFGBuilder took 672.92 ms. Allocated memory was 65.0 MB in the beginning and 94.4 MB in the end (delta: 29.4 MB). Free memory was 34.9 MB in the beginning and 51.9 MB in the end (delta: -17.0 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2021-08-27 16:04:24,385 INFO L168 Benchmark]: BuchiAutomizer took 82820.18 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 51.4 MB in the beginning and 87.3 MB in the end (delta: -35.9 MB). Peak memory consumption was 52.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:04:24,386 INFO L168 Benchmark]: Witness Printer took 26.70 ms. Allocated memory is still 113.2 MB. Free memory was 87.3 MB in the beginning and 85.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:04:24,387 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 65.0 MB. Free memory is still 46.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 420.94 ms. Allocated memory is still 65.0 MB. Free memory was 44.2 MB in the beginning and 41.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.03 ms. Allocated memory is still 65.0 MB. Free memory was 41.0 MB in the beginning and 37.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.58 ms. Allocated memory is still 65.0 MB. Free memory was 37.5 MB in the beginning and 34.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 672.92 ms. Allocated memory was 65.0 MB in the beginning and 94.4 MB in the end (delta: 29.4 MB). Free memory was 34.9 MB in the beginning and 51.9 MB in the end (delta: -17.0 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 82820.18 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 51.4 MB in the beginning and 87.3 MB in the end (delta: -35.9 MB). Peak memory consumption was 52.2 MB. Max. memory is 16.1 GB. * Witness Printer took 26.70 ms. Allocated memory is still 113.2 MB. Free memory was 87.3 MB in the beginning and 85.2 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 6 locations. The remainder module has 145 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 82.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 82.4s. Construction of modules took 0.1s. 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 13.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 96 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 145 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 150 SDtfs, 577 SDslu, 701 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 140.1ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 57]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=10003} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=10028, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1855cce=53, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@507f8558=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c32315=0, NULL=10003, NULL=0, NULL=0, NULL=10032, retValue_acc=0, NULL=10020, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1012c6c4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@664890ad=0, NULL=10012, NULL=10004, methaneLevelCritical=0, NULL=10007, NULL=0, NULL=0, NULL=10035, tmp___1=0, NULL=0, NULL=0, NULL=10017, NULL=10014, cleanupTimeShifts=4, tmp=0, NULL=10030, NULL=0, systemActive=1, waterLevel=1, NULL=0, retValue_acc=0, NULL=0, tmp___0=0, NULL=0, NULL=10027, NULL=0, NULL=0, NULL=0, NULL=10021, \result=1, NULL=10023, head=0, pumpRunning=0, \result=0, NULL=10018, NULL=10006, NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=0, NULL=10029, NULL=10024, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b344e77=0, NULL=0, NULL=10036, NULL=0, tmp___2=53, NULL=10015, NULL=10022, tmp___0=0, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ea5d89f=0, methAndRunningLastTime=0, \result=0, NULL=10005, NULL=10034, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@239f5869=0, tmp=0, NULL=0, NULL=0, NULL=10025, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@411341ec=0, NULL=10013, NULL=0, NULL=10031, NULL=10026, NULL=10019, NULL=10016, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L549] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L746] int methAndRunningLastTime ; [L785] int cleanupTimeShifts = 4; [L883] int waterLevel = 1; [L884] int methaneLevelCritical = 0; [L859] int retValue_acc ; [L860] int tmp ; [L371] int retValue_acc ; [L374] retValue_acc = 1 [L375] return (retValue_acc); [L866] tmp = valid_product() [L868] COND TRUE \read(tmp) [L751] methAndRunningLastTime = 0 [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 Loop: [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L168] int tmp ; [L171] COND FALSE !(\read(pumpRunning)) [L756] int tmp ; [L757] int tmp___0 ; [L922] int retValue_acc ; [L925] retValue_acc = methaneLevelCritical [L926] return (retValue_acc); [L761] tmp = isMethaneLevelCritical() [L763] COND FALSE !(\read(tmp)) [L779] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:04:24,440 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...