./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product32.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_spec2_product32.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 22c7cf4a4cbd4c9d9a1437e76dac75349b25e74a ................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:18:39,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:18:39,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:18:39,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:18:39,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:18:39,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:18:39,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:18:39,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:18:39,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:18:39,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:18:39,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:18:39,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:18:39,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:18:39,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:18:39,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:18:39,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:18:39,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:18:39,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:18:39,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:18:39,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:18:39,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:18:39,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:18:39,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:18:39,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:18:39,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:18:39,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:18:39,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:18:39,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:18:39,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:18:39,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:18:39,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:18:39,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:18:39,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:18:39,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:18:39,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:18:39,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:18:39,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:18:39,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:18:39,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:18:39,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:18:39,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:18:39,241 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:18:39,279 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:18:39,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:18:39,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:18:39,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:18:39,281 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:18:39,282 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:18:39,282 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:18:39,282 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:18:39,282 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:18:39,282 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:18:39,283 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:18:39,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:18:39,283 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:18:39,283 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:18:39,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:18:39,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:18:39,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:18:39,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:18:39,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:18:39,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:18:39,284 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:18:39,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:18:39,285 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:18:39,285 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:18:39,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:18:39,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:18:39,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:18:39,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:18:39,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:18:39,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:18:39,287 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:18:39,287 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22c7cf4a4cbd4c9d9a1437e76dac75349b25e74a [2021-07-06 20:18:39,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:18:39,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:18:39,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:18:39,602 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:18:39,603 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:18:39,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product32.cil.c [2021-07-06 20:18:39,662 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eb62c865/c01fa46498c5496b8b1f242d8b8d45f5/FLAG9ac8ef9ee [2021-07-06 20:18:40,121 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:18:40,122 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product32.cil.c [2021-07-06 20:18:40,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eb62c865/c01fa46498c5496b8b1f242d8b8d45f5/FLAG9ac8ef9ee [2021-07-06 20:18:40,640 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eb62c865/c01fa46498c5496b8b1f242d8b8d45f5 [2021-07-06 20:18:40,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:18:40,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:18:40,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:18:40,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:18:40,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:18:40,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:18:40" (1/1) ... [2021-07-06 20:18:40,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3156cfa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:40, skipping insertion in model container [2021-07-06 20:18:40,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:18:40" (1/1) ... [2021-07-06 20:18:40,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:18:40,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:18:40,795 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_spec2_product32.cil.c[1281,1294] [2021-07-06 20:18:40,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:18:40,974 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:18:40,992 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_spec2_product32.cil.c[1281,1294] [2021-07-06 20:18:41,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:18:41,073 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:18:41,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:41 WrapperNode [2021-07-06 20:18:41,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:18:41,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:18:41,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:18:41,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:18:41,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:41" (1/1) ... [2021-07-06 20:18:41,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:41" (1/1) ... [2021-07-06 20:18:41,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:18:41,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:18:41,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:18:41,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:18:41,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:41" (1/1) ... [2021-07-06 20:18:41,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:41" (1/1) ... [2021-07-06 20:18:41,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:41" (1/1) ... [2021-07-06 20:18:41,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:41" (1/1) ... [2021-07-06 20:18:41,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:41" (1/1) ... [2021-07-06 20:18:41,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:41" (1/1) ... [2021-07-06 20:18:41,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:41" (1/1) ... [2021-07-06 20:18:41,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:18:41,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:18:41,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:18:41,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:18:41,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:41" (1/1) ... [2021-07-06 20:18:41,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:18:41,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:18:41,214 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 20:18:41,216 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 20:18:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:18:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:18:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:18:41,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:18:42,045 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:18:42,045 INFO L299 CfgBuilder]: Removed 164 assume(true) statements. [2021-07-06 20:18:42,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:18:42 BoogieIcfgContainer [2021-07-06 20:18:42,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:18:42,050 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:18:42,050 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:18:42,053 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:18:42,053 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:18:42,054 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:18:40" (1/3) ... [2021-07-06 20:18:42,055 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35307232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:18:42, skipping insertion in model container [2021-07-06 20:18:42,055 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:18:42,055 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:41" (2/3) ... [2021-07-06 20:18:42,056 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35307232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:18:42, skipping insertion in model container [2021-07-06 20:18:42,056 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:18:42,056 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:18:42" (3/3) ... [2021-07-06 20:18:42,057 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product32.cil.c [2021-07-06 20:18:42,099 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:18:42,099 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:18:42,099 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:18:42,099 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:18:42,099 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:18:42,100 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:18:42,100 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:18:42,100 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:18:42,116 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) [2021-07-06 20:18:42,133 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-07-06 20:18:42,134 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:18:42,134 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:18:42,140 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:18:42,140 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:18:42,140 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:18:42,141 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) [2021-07-06 20:18:42,146 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-07-06 20:18:42,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:18:42,146 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:18:42,147 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:18:42,147 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:18:42,151 INFO L791 eck$LassoCheckResult]: Stem: 75#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~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 6#L-1true havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 79#L476true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 83#L484true main_#t~ret32 := valid_product_#res;main_~tmp~5 := main_#t~ret32;havoc main_#t~ret32; 85#L440true assume 0 != main_~tmp~5; 101#L412true ~methAndRunningLastTime~0 := 0; 8#L585true 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; 10#L596-1true [2021-07-06 20:18:42,151 INFO L793 eck$LassoCheckResult]: Loop: 10#L596-1true assume !false; 109#L68true assume test_~splverifierCounter~0 < 4; 46#L69true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 81#L77true assume !(0 != test_~tmp~0); 78#L77-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 17#L87true assume !(0 != test_~tmp___0~0); 12#L87-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 40#L97true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 32#L105-1true assume !(0 != ~pumpRunning~0); 23#L142true assume !(0 != ~systemActive~0); 56#L149true havoc __utac_acc__Specification2_spec__2_#t~ret44, __utac_acc__Specification2_spec__2_#t~ret45, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; 97#L533-1true __utac_acc__Specification2_spec__2_#t~ret44 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret44;havoc __utac_acc__Specification2_spec__2_#t~ret44; 7#L596true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 10#L596-1true [2021-07-06 20:18:42,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:18:42,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-07-06 20:18:42,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:18:42,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768742401] [2021-07-06 20:18:42,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:18:42,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:18:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:18:42,336 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:18:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:18:42,404 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:18:42,431 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:18:42,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:18:42,433 INFO L82 PathProgramCache]: Analyzing trace with hash 13527572, now seen corresponding path program 1 times [2021-07-06 20:18:42,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:18:42,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507092434] [2021-07-06 20:18:42,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:18:42,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:18:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:18:42,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:18:42,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:18:42,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:18:42,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:18:42,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:18:42,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:18:42,484 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 20:18:42,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:18:42,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507092434] [2021-07-06 20:18:42,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507092434] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:18:42,487 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:18:42,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:18:42,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189320838] [2021-07-06 20:18:42,492 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-07-06 20:18:42,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:18:42,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 20:18:42,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 20:18:42,509 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 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 20:18:42,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:18:42,587 INFO L93 Difference]: Finished difference Result 209 states and 301 transitions. [2021-07-06 20:18:42,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 20:18:42,589 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 209 states and 301 transitions. [2021-07-06 20:18:42,603 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2021-07-06 20:18:42,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 209 states to 195 states and 286 transitions. [2021-07-06 20:18:42,614 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2021-07-06 20:18:42,615 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 195 [2021-07-06 20:18:42,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 286 transitions. [2021-07-06 20:18:42,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:18:42,618 INFO L681 BuchiCegarLoop]: Abstraction has 195 states and 286 transitions. [2021-07-06 20:18:42,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 286 transitions. [2021-07-06 20:18:42,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 193. [2021-07-06 20:18:42,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 193 states have (on average 1.4663212435233162) internal successors, (283), 192 states have internal predecessors, (283), 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 20:18:42,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 283 transitions. [2021-07-06 20:18:42,672 INFO L704 BuchiCegarLoop]: Abstraction has 193 states and 283 transitions. [2021-07-06 20:18:42,672 INFO L587 BuchiCegarLoop]: Abstraction has 193 states and 283 transitions. [2021-07-06 20:18:42,673 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:18:42,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states and 283 transitions. [2021-07-06 20:18:42,677 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 132 [2021-07-06 20:18:42,677 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:18:42,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:18:42,678 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:18:42,678 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:18:42,678 INFO L791 eck$LassoCheckResult]: Stem: 420#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~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 332#L-1 havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 333#L476 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 422#L484 main_#t~ret32 := valid_product_#res;main_~tmp~5 := main_#t~ret32;havoc main_#t~ret32; 424#L440 assume 0 != main_~tmp~5; 426#L412 ~methAndRunningLastTime~0 := 0; 337#L585 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; 338#L596-1 [2021-07-06 20:18:42,679 INFO L793 eck$LassoCheckResult]: Loop: 338#L596-1 assume !false; 341#L68 assume test_~splverifierCounter~0 < 4; 395#L69 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 396#L77 assume !(0 != test_~tmp~0); 354#L77-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 355#L87 assume !(0 != test_~tmp___0~0); 344#L87-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 345#L97 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 378#L105-1 assume !(0 != ~pumpRunning~0); 368#L142 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 369#L200 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret11, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 433#L174-1 assume !(0 != ~pumpRunning~0); 457#L149 havoc __utac_acc__Specification2_spec__2_#t~ret44, __utac_acc__Specification2_spec__2_#t~ret45, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; 456#L533-1 __utac_acc__Specification2_spec__2_#t~ret44 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret44;havoc __utac_acc__Specification2_spec__2_#t~ret44; 453#L596 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 338#L596-1 [2021-07-06 20:18:42,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:18:42,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-07-06 20:18:42,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:18:42,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77382916] [2021-07-06 20:18:42,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:18:42,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:18:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:18:42,734 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:18:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:18:42,767 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:18:42,780 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:18:42,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:18:42,781 INFO L82 PathProgramCache]: Analyzing trace with hash -2034283738, now seen corresponding path program 1 times [2021-07-06 20:18:42,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:18:42,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313050377] [2021-07-06 20:18:42,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:18:42,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:18:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:18:42,785 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:18:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:18:42,788 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:18:42,792 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:18:42,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:18:42,795 INFO L82 PathProgramCache]: Analyzing trace with hash -100258528, now seen corresponding path program 1 times [2021-07-06 20:18:42,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:18:42,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589384963] [2021-07-06 20:18:42,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:18:42,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:18:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:18:42,848 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:18:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:18:42,900 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:18:42,911 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:18:42,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:18:42,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-06 20:19:24,227 WARN L205 SmtUtils]: Spent 41.22 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-07-06 20:19:24,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:19:24,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2130 [2021-07-06 20:19:44,305 WARN L205 SmtUtils]: Spent 20.01 s on a formula simplification that was a NOOP. DAG size: 435 [2021-07-06 20:19:44,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:19:44 BoogieIcfgContainer [2021-07-06 20:19:44,405 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:19:44,406 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:19:44,406 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:19:44,406 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:19:44,407 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:18:42" (3/4) ... [2021-07-06 20:19:44,409 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:19:44,451 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:19:44,452 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:19:44,453 INFO L168 Benchmark]: Toolchain (without parser) took 63807.83 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 41.4 MB in the beginning and 66.3 MB in the end (delta: -24.8 MB). Peak memory consumption was 51.7 MB. Max. memory is 16.1 GB. [2021-07-06 20:19:44,453 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 62.9 MB. Free memory is still 44.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:19:44,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.48 ms. Allocated memory is still 62.9 MB. Free memory was 41.3 MB in the beginning and 35.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-06 20:19:44,454 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.59 ms. Allocated memory is still 62.9 MB. Free memory was 35.3 MB in the beginning and 31.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:19:44,455 INFO L168 Benchmark]: Boogie Preprocessor took 59.63 ms. Allocated memory is still 62.9 MB. Free memory was 31.9 MB in the beginning and 29.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:19:44,455 INFO L168 Benchmark]: RCFGBuilder took 861.47 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 29.3 MB in the beginning and 46.3 MB in the end (delta: -17.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-07-06 20:19:44,456 INFO L168 Benchmark]: BuchiAutomizer took 62355.50 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 46.3 MB in the beginning and 21.2 MB in the end (delta: 25.0 MB). Peak memory consumption was 46.8 MB. Max. memory is 16.1 GB. [2021-07-06 20:19:44,456 INFO L168 Benchmark]: Witness Printer took 45.74 ms. Allocated memory is still 92.3 MB. Free memory was 20.3 MB in the beginning and 66.3 MB in the end (delta: -46.0 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2021-07-06 20:19:44,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 62.9 MB. Free memory is still 44.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 428.48 ms. Allocated memory is still 62.9 MB. Free memory was 41.3 MB in the beginning and 35.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.59 ms. Allocated memory is still 62.9 MB. Free memory was 35.3 MB in the beginning and 31.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.63 ms. Allocated memory is still 62.9 MB. Free memory was 31.9 MB in the beginning and 29.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 861.47 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 29.3 MB in the beginning and 46.3 MB in the end (delta: -17.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 62355.50 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 46.3 MB in the beginning and 21.2 MB in the end (delta: 25.0 MB). Peak memory consumption was 46.8 MB. Max. memory is 16.1 GB. * Witness Printer took 45.74 ms. Allocated memory is still 92.3 MB. Free memory was 20.3 MB in the beginning and 66.3 MB in the end (delta: -46.0 MB). Peak memory consumption was 2.3 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 193 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 62.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 62.0s. 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 36.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 193 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 153 SDtfs, 149 SDslu, 140 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.4ms 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: 67]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4375} State at position 1 is {NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16098ae8=64, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a27e7b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f00fa84=0, NULL=4375, retValue_acc=0, NULL=0, NULL=0, NULL=4399, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36237188=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2429616e=0, NULL=4384, methaneLevelCritical=0, NULL=4406, NULL=0, NULL=0, NULL=4388, NULL=4404, NULL=0, NULL=0, NULL=4381, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=4387, NULL=4407, NULL=4405, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7dbef7b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46a3feb9=0, NULL=0, systemActive=1, waterLevel=1, NULL=4378, NULL=0, retValue_acc=0, tmp___0=0, NULL=4390, \result=1, NULL=4410, head=0, pumpRunning=0, \result=0, NULL=4401, NULL=4380, NULL=0, NULL=0, tmp=1, NULL=0, NULL=4408, retValue_acc=1, NULL=0, NULL=4379, NULL=4400, NULL=0, NULL=4398, NULL=0, NULL=0, NULL=4389, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e33133c=0, tmp___2=64, NULL=0, NULL=4409, NULL=4383, tmp___0=0, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4923ea3f=0, methAndRunningLastTime=0, \result=0, NULL=4382, NULL=4376, NULL=4402, tmp=0, head=0, tmp=0, NULL=0, NULL=0, NULL=4377, NULL=0, NULL=0, NULL=0, NULL=0, NULL=4386, NULL=0, NULL=4403, NULL=4385, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L353] int cleanupTimeShifts = 4; [L490] int waterLevel = 1; [L491] int methaneLevelCritical = 0; [L579] int methAndRunningLastTime ; [L787] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L431] int retValue_acc ; [L432] int tmp ; [L480] int retValue_acc ; [L483] retValue_acc = 1 [L484] return (retValue_acc); [L438] tmp = valid_product() [L440] COND TRUE \read(tmp) [L584] methAndRunningLastTime = 0 [L58] int splverifierCounter ; [L59] int tmp ; [L60] int tmp___0 ; [L61] int tmp___1 ; [L62] int tmp___2 ; [L65] splverifierCounter = 0 Loop: [L67] COND TRUE 1 [L69] COND TRUE splverifierCounter < 4 [L75] tmp = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp)) [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___0)) [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L348] systemActive = 1 [L142] COND FALSE !(\read(pumpRunning)) [L149] COND TRUE \read(systemActive) [L197] int tmp ; [L200] COND FALSE !(\read(pumpRunning)) [L171] int tmp ; [L174] COND FALSE !(\read(pumpRunning)) [L589] int tmp ; [L590] int tmp___0 ; [L529] int retValue_acc ; [L532] retValue_acc = methaneLevelCritical [L533] return (retValue_acc); [L594] tmp = isMethaneLevelCritical() [L596] COND FALSE !(\read(tmp)) [L612] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:19:44,529 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...