./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product23.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_product23.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 8105acde44a746346743774bfdcca7c2d11e450d ............................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:17:51,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:17:51,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:17:51,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:17:51,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:17:51,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:17:51,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:17:51,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:17:51,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:17:51,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:17:51,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:17:51,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:17:51,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:17:51,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:17:51,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:17:51,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:17:51,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:17:51,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:17:51,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:17:51,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:17:51,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:17:51,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:17:51,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:17:51,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:17:51,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:17:51,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:17:51,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:17:51,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:17:52,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:17:52,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:17:52,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:17:52,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:17:52,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:17:52,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:17:52,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:17:52,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:17:52,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:17:52,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:17:52,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:17:52,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:17:52,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:17:52,010 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:17:52,038 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:17:52,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:17:52,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:17:52,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:17:52,040 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:17:52,040 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:17:52,040 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:17:52,040 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:17:52,040 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:17:52,040 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:17:52,041 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:17:52,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:17:52,041 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:17:52,041 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:17:52,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:17:52,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:17:52,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:17:52,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:17:52,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:17:52,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:17:52,041 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:17:52,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:17:52,042 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:17:52,042 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:17:52,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:17:52,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:17:52,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:17:52,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:17:52,042 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:17:52,042 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:17:52,043 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:17:52,043 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8105acde44a746346743774bfdcca7c2d11e450d [2021-07-06 20:17:52,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:17:52,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:17:52,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:17:52,275 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:17:52,275 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:17:52,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c [2021-07-06 20:17:52,315 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb19b978e/42e13ecd0faa47388bfee5129fcce88c/FLAG4a7310054 [2021-07-06 20:17:52,665 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:17:52,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c [2021-07-06 20:17:52,675 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb19b978e/42e13ecd0faa47388bfee5129fcce88c/FLAG4a7310054 [2021-07-06 20:17:53,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb19b978e/42e13ecd0faa47388bfee5129fcce88c [2021-07-06 20:17:53,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:17:53,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:17:53,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:17:53,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:17:53,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:17:53,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:17:53" (1/1) ... [2021-07-06 20:17:53,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6e9857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:53, skipping insertion in model container [2021-07-06 20:17:53,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:17:53" (1/1) ... [2021-07-06 20:17:53,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:17:53,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:17:53,229 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_product23.cil.c[13059,13072] [2021-07-06 20:17:53,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:17:53,251 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:17:53,341 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_product23.cil.c[13059,13072] [2021-07-06 20:17:53,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:17:53,375 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:17:53,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:53 WrapperNode [2021-07-06 20:17:53,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:17:53,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:17:53,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:17:53,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:17:53,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:53" (1/1) ... [2021-07-06 20:17:53,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:53" (1/1) ... [2021-07-06 20:17:53,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:17:53,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:17:53,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:17:53,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:17:53,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:53" (1/1) ... [2021-07-06 20:17:53,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:53" (1/1) ... [2021-07-06 20:17:53,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:53" (1/1) ... [2021-07-06 20:17:53,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:53" (1/1) ... [2021-07-06 20:17:53,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:53" (1/1) ... [2021-07-06 20:17:53,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:53" (1/1) ... [2021-07-06 20:17:53,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:53" (1/1) ... [2021-07-06 20:17:53,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:17:53,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:17:53,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:17:53,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:17:53,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:53" (1/1) ... [2021-07-06 20:17:53,444 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:17:53,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:17:53,470 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 20:17:53,477 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 20:17:53,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:17:53,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:17:53,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:17:53,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:17:54,225 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:17:54,226 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-07-06 20:17:54,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:17:54 BoogieIcfgContainer [2021-07-06 20:17:54,227 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:17:54,228 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:17:54,229 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:17:54,231 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:17:54,231 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:17:54,232 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:17:53" (1/3) ... [2021-07-06 20:17:54,233 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55e38180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:17:54, skipping insertion in model container [2021-07-06 20:17:54,233 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:17:54,234 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:53" (2/3) ... [2021-07-06 20:17:54,234 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55e38180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:17:54, skipping insertion in model container [2021-07-06 20:17:54,234 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:17:54,234 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:17:54" (3/3) ... [2021-07-06 20:17:54,235 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product23.cil.c [2021-07-06 20:17:54,269 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:17:54,269 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:17:54,269 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:17:54,269 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:17:54,269 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:17:54,269 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:17:54,270 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:17:54,270 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:17:54,284 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 20:17:54,307 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-07-06 20:17:54,307 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:17:54,308 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:17:54,313 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:17:54,314 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:17:54,314 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:17:54,315 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 20:17:54,325 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-07-06 20:17:54,326 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:17:54,326 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:17:54,326 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:17:54,326 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:17:54,333 INFO L791 eck$LassoCheckResult]: Stem: 85#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 11#L-1true havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 80#L845true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 95#L853true main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 89#L941true assume 0 != main_~tmp~8; 69#L917true ~methAndRunningLastTime~0 := 0; 66#L146true havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 65#L157-1true [2021-07-06 20:17:54,333 INFO L793 eck$LassoCheckResult]: Loop: 65#L157-1true assume !false; 46#L568true assume test_~splverifierCounter~0 < 4; 101#L569true test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 5#L577true assume !(0 != test_~tmp~4); 8#L577-1true test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 58#L587true assume !(0 != test_~tmp___0~1); 59#L587-1true test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 96#L597true assume 0 != test_~tmp___2~0; 76#L603-1true assume !(0 != ~pumpRunning~0); 56#L634true assume !(0 != ~systemActive~0); 92#L641true havoc __utac_acc__Specification2_spec__2_#t~ret17, __utac_acc__Specification2_spec__2_#t~ret18, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 22#L92-1true __utac_acc__Specification2_spec__2_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret17;havoc __utac_acc__Specification2_spec__2_#t~ret17; 68#L157true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 65#L157-1true [2021-07-06 20:17:54,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:17:54,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-07-06 20:17:54,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:17:54,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272873135] [2021-07-06 20:17:54,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:17:54,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:17:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:54,488 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:54,528 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:54,548 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:17:54,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:17:54,550 INFO L82 PathProgramCache]: Analyzing trace with hash 12573267, now seen corresponding path program 1 times [2021-07-06 20:17:54,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:17:54,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135990740] [2021-07-06 20:17:54,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:17:54,551 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:17:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:54,554 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:54,556 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:54,559 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:17:54,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:17:54,560 INFO L82 PathProgramCache]: Analyzing trace with hash 845869773, now seen corresponding path program 1 times [2021-07-06 20:17:54,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:17:54,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515213483] [2021-07-06 20:17:54,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:17:54,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:17:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:17:54,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:17:54,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:17:54,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:17:54,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:17:54,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:17:54,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:17:54,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:17:54,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 20:17:54,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:17:54,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:17:54,684 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 20:17:54,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:17:54,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515213483] [2021-07-06 20:17:54,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515213483] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:17:54,685 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:17:54,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-06 20:17:54,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031223998] [2021-07-06 20:17:54,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:17:54,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-06 20:17:54,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:17:54,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-06 20:17:54,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-06 20:17:54,748 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) [2021-07-06 20:17:54,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:17:54,937 INFO L93 Difference]: Finished difference Result 262 states and 373 transitions. [2021-07-06 20:17:54,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-06 20:17:54,938 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 373 transitions. [2021-07-06 20:17:54,945 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 167 [2021-07-06 20:17:54,952 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 241 states and 352 transitions. [2021-07-06 20:17:54,952 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 241 [2021-07-06 20:17:54,953 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 241 [2021-07-06 20:17:54,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 241 states and 352 transitions. [2021-07-06 20:17:54,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:17:54,956 INFO L681 BuchiCegarLoop]: Abstraction has 241 states and 352 transitions. [2021-07-06 20:17:54,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states and 352 transitions. [2021-07-06 20:17:54,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 145. [2021-07-06 20:17:54,984 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) [2021-07-06 20:17:54,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 211 transitions. [2021-07-06 20:17:54,985 INFO L704 BuchiCegarLoop]: Abstraction has 145 states and 211 transitions. [2021-07-06 20:17:54,986 INFO L587 BuchiCegarLoop]: Abstraction has 145 states and 211 transitions. [2021-07-06 20:17:54,986 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:17:54,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 145 states and 211 transitions. [2021-07-06 20:17:54,988 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2021-07-06 20:17:54,988 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:17:54,988 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:17:54,988 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:17:54,989 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:17:54,989 INFO L791 eck$LassoCheckResult]: Stem: 486#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 404#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 405#L845 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 484#L853 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 488#L941 assume 0 != main_~tmp~8; 477#L917 ~methAndRunningLastTime~0 := 0; 475#L146 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 437#L157-1 [2021-07-06 20:17:54,991 INFO L793 eck$LassoCheckResult]: Loop: 437#L157-1 assume !false; 456#L568 assume test_~splverifierCounter~0 < 4; 457#L569 test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 391#L577 assume !(0 != test_~tmp~4); 393#L577-1 test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 399#L587 assume !(0 != test_~tmp___0~1); 468#L587-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 469#L597 assume 0 != test_~tmp___2~0; 480#L603-1 assume !(0 != ~pumpRunning~0); 465#L634 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 426#L692 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret58, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 427#L666-1 assume !(0 != ~pumpRunning~0); 433#L641 havoc __utac_acc__Specification2_spec__2_#t~ret17, __utac_acc__Specification2_spec__2_#t~ret18, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 419#L92-1 __utac_acc__Specification2_spec__2_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret17;havoc __utac_acc__Specification2_spec__2_#t~ret17; 420#L157 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 437#L157-1 [2021-07-06 20:17:54,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:17:54,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-07-06 20:17:54,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:17:54,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974293154] [2021-07-06 20:17:54,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:17:54,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:17:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:55,025 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:55,049 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:55,064 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:17:55,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:17:55,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1343596421, now seen corresponding path program 1 times [2021-07-06 20:17:55,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:17:55,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836919078] [2021-07-06 20:17:55,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:17:55,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:17:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:55,076 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:55,078 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:55,085 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:17:55,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:17:55,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1017345665, now seen corresponding path program 1 times [2021-07-06 20:17:55,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:17:55,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379500350] [2021-07-06 20:17:55,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:17:55,089 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:17:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:55,124 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:55,142 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:55,150 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:17:55,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:17:55,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-06 20:18:36,018 WARN L205 SmtUtils]: Spent 40.82 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-07-06 20:18:36,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:18:36,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2130 [2021-07-06 20:18:57,310 WARN L205 SmtUtils]: Spent 21.22 s on a formula simplification that was a NOOP. DAG size: 435 [2021-07-06 20:18:57,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:18:57 BoogieIcfgContainer [2021-07-06 20:18:57,408 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:18:57,408 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:18:57,408 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:18:57,409 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:18:57,409 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:17:54" (3/4) ... [2021-07-06 20:18:57,410 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:18:57,450 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:18:57,450 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:18:57,451 INFO L168 Benchmark]: Toolchain (without parser) took 64392.98 ms. Allocated memory was 60.8 MB in the beginning and 94.4 MB in the end (delta: 33.6 MB). Free memory was 39.4 MB in the beginning and 56.1 MB in the end (delta: -16.7 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:57,451 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 60.8 MB. Free memory is still 43.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:18:57,451 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.81 ms. Allocated memory is still 60.8 MB. Free memory was 39.2 MB in the beginning and 36.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:57,452 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.98 ms. Allocated memory is still 60.8 MB. Free memory was 36.9 MB in the beginning and 33.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:57,452 INFO L168 Benchmark]: Boogie Preprocessor took 22.56 ms. Allocated memory is still 60.8 MB. Free memory was 33.3 MB in the beginning and 30.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:57,452 INFO L168 Benchmark]: RCFGBuilder took 787.85 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 30.7 MB in the beginning and 47.7 MB in the end (delta: -17.0 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:57,452 INFO L168 Benchmark]: BuchiAutomizer took 63179.56 ms. Allocated memory was 75.5 MB in the beginning and 94.4 MB in the end (delta: 18.9 MB). Free memory was 47.7 MB in the beginning and 58.1 MB in the end (delta: -10.4 MB). Peak memory consumption was 51.9 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:57,453 INFO L168 Benchmark]: Witness Printer took 41.85 ms. Allocated memory is still 94.4 MB. Free memory was 58.1 MB in the beginning and 56.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:57,454 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 60.8 MB. Free memory is still 43.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 316.81 ms. Allocated memory is still 60.8 MB. Free memory was 39.2 MB in the beginning and 36.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.98 ms. Allocated memory is still 60.8 MB. Free memory was 36.9 MB in the beginning and 33.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.56 ms. Allocated memory is still 60.8 MB. Free memory was 33.3 MB in the beginning and 30.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 787.85 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 30.7 MB in the beginning and 47.7 MB in the end (delta: -17.0 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 63179.56 ms. Allocated memory was 75.5 MB in the beginning and 94.4 MB in the end (delta: 18.9 MB). Free memory was 47.7 MB in the beginning and 58.1 MB in the end (delta: -10.4 MB). Peak memory consumption was 51.9 MB. Max. memory is 16.1 GB. * Witness Printer took 41.85 ms. Allocated memory is still 94.4 MB. Free memory was 58.1 MB in the beginning and 56.1 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 63.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 62.8s. 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 21.4ms 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, 106.5ms 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: 567]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=12110} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=12115, NULL=0, NULL=12110, NULL=12125, NULL=0, NULL=0, NULL=12130, NULL=0, NULL=12136, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43ced12=0, NULL=12128, methaneLevelCritical=0, NULL=12117, NULL=12132, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11b987e4=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9db8c52=0, tmp=0, NULL=12126, NULL=0, NULL=0, NULL=12122, tmp___1=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13a48d86=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33a766c9=0, NULL=0, NULL=0, NULL=0, NULL=12137, cleanupTimeShifts=4, NULL=12134, NULL=12127, NULL=12131, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=12112, NULL=0, NULL=12120, NULL=0, retValue_acc=0, NULL=12119, \result=1, head=0, pumpRunning=0, NULL=12114, \result=0, NULL=12123, NULL=12135, NULL=0, NULL=0, tmp=1, NULL=0, NULL=12133, tmp___0=0, NULL=0, NULL=0, NULL=12113, NULL=0, tmp___2=56, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=12129, NULL=12111, NULL=12138, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e140809=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19e8d6fa=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9b66a32=0, head=0, tmp=0, NULL=0, NULL=0, NULL=12118, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3702ae80=0, NULL=12116, NULL=12121, NULL=0, NULL=12124} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L140] int methAndRunningLastTime ; [L348] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L627] int pumpRunning = 0; [L628] int systemActive = 1; [L858] int cleanupTimeShifts = 4; [L932] int retValue_acc ; [L933] int tmp ; [L849] int retValue_acc ; [L852] retValue_acc = 1 [L853] return (retValue_acc); [L939] tmp = valid_product() [L941] COND TRUE \read(tmp) [L145] methAndRunningLastTime = 0 [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 Loop: [L567] COND TRUE 1 [L569] COND TRUE splverifierCounter < 4 [L575] tmp = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp)) [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp___0)) [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND TRUE \read(tmp___2) [L634] COND FALSE !(\read(pumpRunning)) [L641] COND TRUE \read(systemActive) [L689] int tmp ; [L692] COND FALSE !(\read(pumpRunning)) [L663] int tmp ; [L666] COND FALSE !(\read(pumpRunning)) [L150] int tmp ; [L151] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L155] tmp = isMethaneLevelCritical() [L157] COND FALSE !(\read(tmp)) [L173] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:18:57,494 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...