./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product29.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 d8dfaf8ef68175aa3f4082d006a42419867490ad ............................................................................................................................................................................................................................................................................................................................................................................................................ 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 20:12:21,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:12:21,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:12:21,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:12:21,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:12:21,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:12:21,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:12:21,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:12:21,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:12:21,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:12:21,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:12:21,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:12:21,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:12:21,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:12:21,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:12:21,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:12:21,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:12:21,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:12:21,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:12:21,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:12:21,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:12:21,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:12:21,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:12:21,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:12:21,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:12:21,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:12:21,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:12:21,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:12:21,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:12:21,263 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:12:21,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:12:21,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:12:21,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:12:21,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:12:21,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:12:21,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:12:21,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:12:21,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:12:21,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:12:21,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:12:21,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:12:21,271 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:12:21,303 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:12:21,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:12:21,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:12:21,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:12:21,306 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:12:21,307 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:12:21,307 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:12:21,307 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:12:21,307 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:12:21,307 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:12:21,308 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:12:21,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:12:21,308 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:12:21,308 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:12:21,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:12:21,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:12:21,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:12:21,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:12:21,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:12:21,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:12:21,309 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:12:21,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:12:21,310 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:12:21,310 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:12:21,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:12:21,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:12:21,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:12:21,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:12:21,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:12:21,311 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:12:21,312 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:12:21,312 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8dfaf8ef68175aa3f4082d006a42419867490ad [2021-07-06 20:12:21,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:12:21,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:12:21,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:12:21,615 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:12:21,616 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:12:21,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product29.cil.c [2021-07-06 20:12:21,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3adb34672/6907261c31484f1bbfc3a59a8fd6a8c4/FLAGe1fb17983 [2021-07-06 20:12:22,158 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:12:22,161 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product29.cil.c [2021-07-06 20:12:22,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3adb34672/6907261c31484f1bbfc3a59a8fd6a8c4/FLAGe1fb17983 [2021-07-06 20:12:22,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3adb34672/6907261c31484f1bbfc3a59a8fd6a8c4 [2021-07-06 20:12:22,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:12:22,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:12:22,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:12:22,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:12:22,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:12:22,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:12:22" (1/1) ... [2021-07-06 20:12:22,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cf25f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:12:22, skipping insertion in model container [2021-07-06 20:12:22,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:12:22" (1/1) ... [2021-07-06 20:12:22,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:12:22,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:12:22,761 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product29.cil.c[17810,17823] [2021-07-06 20:12:22,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:12:22,769 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:12:22,822 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product29.cil.c[17810,17823] [2021-07-06 20:12:22,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:12:22,854 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:12:22,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:12:22 WrapperNode [2021-07-06 20:12:22,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:12:22,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:12:22,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:12:22,856 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:12:22,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:12:22" (1/1) ... [2021-07-06 20:12:22,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:12:22" (1/1) ... [2021-07-06 20:12:22,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:12:22,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:12:22,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:12:22,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:12:22,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:12:22" (1/1) ... [2021-07-06 20:12:22,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:12:22" (1/1) ... [2021-07-06 20:12:22,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:12:22" (1/1) ... [2021-07-06 20:12:22,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:12:22" (1/1) ... [2021-07-06 20:12:22,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:12:22" (1/1) ... [2021-07-06 20:12:22,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:12:22" (1/1) ... [2021-07-06 20:12:22,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:12:22" (1/1) ... [2021-07-06 20:12:22,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:12:22,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:12:22,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:12:22,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:12:22,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:12:22" (1/1) ... [2021-07-06 20:12:22,997 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:12:23,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:12:23,022 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 20:12:23,037 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 20:12:23,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:12:23,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:12:23,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:12:23,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:12:23,890 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:12:23,890 INFO L299 CfgBuilder]: Removed 156 assume(true) statements. [2021-07-06 20:12:23,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:12:23 BoogieIcfgContainer [2021-07-06 20:12:23,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:12:23,892 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:12:23,898 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:12:23,900 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:12:23,901 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:12:23,901 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:12:22" (1/3) ... [2021-07-06 20:12:23,902 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39f0531e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:12:23, skipping insertion in model container [2021-07-06 20:12:23,902 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:12:23,902 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:12:22" (2/3) ... [2021-07-06 20:12:23,902 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39f0531e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:12:23, skipping insertion in model container [2021-07-06 20:12:23,902 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:12:23,902 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:12:23" (3/3) ... [2021-07-06 20:12:23,903 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product29.cil.c [2021-07-06 20:12:23,971 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:12:23,971 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:12:23,971 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:12:23,971 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:12:23,971 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:12:23,971 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:12:23,972 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:12:23,972 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:12:23,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:12:24,005 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-07-06 20:12:24,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:12:24,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:12:24,011 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:12:24,011 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:12:24,011 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:12:24,012 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:12:24,017 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-07-06 20:12:24,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:12:24,017 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:12:24,018 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:12:24,018 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:12:24,022 INFO L791 eck$LassoCheckResult]: Stem: 62#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 13#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; 19#L436true 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; 31#L444true main_#t~ret32 := valid_product_#res;main_~tmp~5 := main_#t~ret32;havoc main_#t~ret32; 33#L400true assume 0 != main_~tmp~5; 80#L374true havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, 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; 21#L458-1true [2021-07-06 20:12:24,022 INFO L793 eck$LassoCheckResult]: Loop: 21#L458-1true assume !false; 75#L261true assume test_~splverifierCounter~0 < 4; 35#L262true test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 49#L270true assume !(0 != test_~tmp~4); 45#L270-1true test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 104#L280true assume !(0 != test_~tmp___0~1); 103#L280-1true test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 32#L290true assume 0 != test_~tmp___2~0; 6#L296-2true assume !(0 != ~pumpRunning~0); 17#L59true assume !(0 != ~systemActive~0); 68#L66true havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 82#L886-1true __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; 30#L458true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 21#L458-1true [2021-07-06 20:12:24,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:12:24,027 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-07-06 20:12:24,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:12:24,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036840933] [2021-07-06 20:12:24,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:12:24,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:12:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:12:24,275 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:12:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:12:24,360 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:12:24,386 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:12:24,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:12:24,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1680298494, now seen corresponding path program 1 times [2021-07-06 20:12:24,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:12:24,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727059464] [2021-07-06 20:12:24,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:12:24,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:12:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:12:24,394 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:12:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:12:24,397 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:12:24,401 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:12:24,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:12:24,402 INFO L82 PathProgramCache]: Analyzing trace with hash 33980444, now seen corresponding path program 1 times [2021-07-06 20:12:24,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:12:24,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718722537] [2021-07-06 20:12:24,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:12:24,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:12:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:12:24,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:12:24,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:12:24,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:12:24,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:12:24,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:12:24,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:12:24,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:12:24,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 20:12:24,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:12:24,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:12:24,522 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 20:12:24,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:12:24,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718722537] [2021-07-06 20:12:24,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718722537] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:12:24,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:12:24,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-06 20:12:24,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799312695] [2021-07-06 20:12:24,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:12:24,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-06 20:12:24,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:12:24,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-06 20:12:24,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-06 20:12:24,649 INFO L87 Difference]: Start difference. First operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:12:24,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:12:24,823 INFO L93 Difference]: Finished difference Result 102 states and 142 transitions. [2021-07-06 20:12:24,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-06 20:12:24,825 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 142 transitions. [2021-07-06 20:12:24,832 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-07-06 20:12:24,839 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 95 states and 135 transitions. [2021-07-06 20:12:24,840 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2021-07-06 20:12:24,842 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2021-07-06 20:12:24,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 135 transitions. [2021-07-06 20:12:24,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:12:24,844 INFO L681 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-07-06 20:12:24,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 135 transitions. [2021-07-06 20:12:24,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-07-06 20:12:24,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 95 states have (on average 1.4210526315789473) internal successors, (135), 94 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:12:24,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2021-07-06 20:12:24,876 INFO L704 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-07-06 20:12:24,876 INFO L587 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-07-06 20:12:24,876 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:12:24,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 135 transitions. [2021-07-06 20:12:24,881 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-07-06 20:12:24,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:12:24,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:12:24,882 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:12:24,882 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:12:24,883 INFO L791 eck$LassoCheckResult]: Stem: 287#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 244#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; 245#L436 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; 279#L444 main_#t~ret32 := valid_product_#res;main_~tmp~5 := main_#t~ret32;havoc main_#t~ret32; 311#L400 assume 0 != main_~tmp~5; 304#L374 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, 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; 281#L458-1 [2021-07-06 20:12:24,886 INFO L793 eck$LassoCheckResult]: Loop: 281#L458-1 assume !false; 282#L261 assume test_~splverifierCounter~0 < 4; 298#L262 test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 252#L270 assume !(0 != test_~tmp~4); 249#L270-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 250#L280 assume !(0 != test_~tmp___0~1); 315#L280-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 312#L290 assume 0 != test_~tmp___2~0; 230#L296-2 assume !(0 != ~pumpRunning~0); 231#L59 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 265#L117 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret7, processEnvironment__wrappee__methaneQuery_~tmp~0;havoc processEnvironment__wrappee__methaneQuery_~tmp~0; 222#L91-1 assume !(0 != ~pumpRunning~0); 224#L66 havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 291#L886-1 __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; 305#L458 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 281#L458-1 [2021-07-06 20:12:24,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:12:24,887 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-07-06 20:12:24,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:12:24,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708921391] [2021-07-06 20:12:24,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:12:24,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:12:24,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:12:24,956 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:12:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:12:25,004 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:12:25,030 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:12:25,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:12:25,031 INFO L82 PathProgramCache]: Analyzing trace with hash -2008522604, now seen corresponding path program 1 times [2021-07-06 20:12:25,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:12:25,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456680792] [2021-07-06 20:12:25,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:12:25,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:12:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:12:25,036 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:12:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:12:25,041 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:12:25,044 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:12:25,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:12:25,044 INFO L82 PathProgramCache]: Analyzing trace with hash 441062446, now seen corresponding path program 1 times [2021-07-06 20:12:25,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:12:25,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534139523] [2021-07-06 20:12:25,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:12:25,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:12:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:12:25,094 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:12:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:12:25,140 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:12:25,150 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:12:25,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:12:25,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-06 20:13:08,057 WARN L205 SmtUtils]: Spent 42.83 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-07-06 20:13:08,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:13:08,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2127 [2021-07-06 20:13:28,473 WARN L205 SmtUtils]: Spent 20.35 s on a formula simplification that was a NOOP. DAG size: 433 [2021-07-06 20:13:28,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:13:28 BoogieIcfgContainer [2021-07-06 20:13:28,609 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:13:28,610 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:13:28,610 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:13:28,610 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:13:28,610 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:12:23" (3/4) ... [2021-07-06 20:13:28,612 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:13:28,643 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:13:28,643 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:13:28,644 INFO L168 Benchmark]: Toolchain (without parser) took 66156.01 ms. Allocated memory was 60.8 MB in the beginning and 107.0 MB in the end (delta: 46.1 MB). Free memory was 40.3 MB in the beginning and 53.5 MB in the end (delta: -13.1 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.1 GB. [2021-07-06 20:13:28,644 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 60.8 MB. Free memory is still 42.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:13:28,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.99 ms. Allocated memory is still 60.8 MB. Free memory was 40.1 MB in the beginning and 33.8 MB in the end (delta: 6.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-07-06 20:13:28,645 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.41 ms. Allocated memory is still 60.8 MB. Free memory was 33.8 MB in the beginning and 30.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:13:28,645 INFO L168 Benchmark]: Boogie Preprocessor took 77.77 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 30.3 MB in the beginning and 55.7 MB in the end (delta: -25.3 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. [2021-07-06 20:13:28,646 INFO L168 Benchmark]: RCFGBuilder took 900.28 ms. Allocated memory is still 73.4 MB. Free memory was 55.7 MB in the beginning and 41.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:13:28,646 INFO L168 Benchmark]: BuchiAutomizer took 64717.10 ms. Allocated memory was 73.4 MB in the beginning and 107.0 MB in the end (delta: 33.6 MB). Free memory was 40.9 MB in the beginning and 55.6 MB in the end (delta: -14.6 MB). Peak memory consumption was 57.6 MB. Max. memory is 16.1 GB. [2021-07-06 20:13:28,646 INFO L168 Benchmark]: Witness Printer took 33.46 ms. Allocated memory is still 107.0 MB. Free memory was 55.6 MB in the beginning and 53.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:13:28,648 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 60.8 MB. Free memory is still 42.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 364.99 ms. Allocated memory is still 60.8 MB. Free memory was 40.1 MB in the beginning and 33.8 MB in the end (delta: 6.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.41 ms. Allocated memory is still 60.8 MB. Free memory was 33.8 MB in the beginning and 30.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.77 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 30.3 MB in the beginning and 55.7 MB in the end (delta: -25.3 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 900.28 ms. Allocated memory is still 73.4 MB. Free memory was 55.7 MB in the beginning and 41.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 64717.10 ms. Allocated memory was 73.4 MB in the beginning and 107.0 MB in the end (delta: 33.6 MB). Free memory was 40.9 MB in the beginning and 55.6 MB in the end (delta: -14.6 MB). Peak memory consumption was 57.6 MB. Max. memory is 16.1 GB. * Witness Printer took 33.46 ms. Allocated memory is still 107.0 MB. Free memory was 55.6 MB in the beginning and 53.5 MB in the end (delta: 2.1 MB). There was no memory consumed. 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 95 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 64.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 64.3s. 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 21.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 95 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 137 SDtfs, 418 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 102.1ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 260]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=31046} State at position 1 is {NULL=0, NULL=0, NULL=31067, NULL=0, NULL=31046, retValue_acc=0, NULL=31065, NULL=31053, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c30868f=0, NULL=31070, NULL=31054, methaneLevelCritical=0, NULL=31049, NULL=0, NULL=0, tmp=0, NULL=31066, NULL=0, NULL=0, NULL=31068, NULL=0, tmp___1=0, tmp___0=0, NULL=0, NULL=0, NULL=31059, cleanupTimeShifts=4, NULL=31050, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=31072, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5eb35815=0, NULL=31048, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=31062, \result=1, NULL=31056, head=0, pumpRunning=0, NULL=31064, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f34a343=0, NULL=31069, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@246808e1=0, tmp=0, NULL=31052, NULL=0, tmp=1, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b12024b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14780d66=56, NULL=0, NULL=31063, NULL=31057, NULL=0, NULL=0, NULL=31061, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76ab25c4=0, tmp___2=56, tmp___0=0, NULL=31071, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=31047, NULL=31074, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49b7fab1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ebdbdc2=0, NULL=31060, tmp=0, head=0, NULL=0, tmp=0, NULL=31073, NULL=0, NULL=0, NULL=31055, NULL=0, NULL=31058, NULL=31051} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L315] int cleanupTimeShifts = 4; [L645] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; [L391] int retValue_acc ; [L392] int tmp ; [L440] int retValue_acc ; [L443] retValue_acc = 1 [L444] return (retValue_acc); [L398] tmp = valid_product() [L400] COND TRUE \read(tmp) [L251] int splverifierCounter ; [L252] int tmp ; [L253] int tmp___0 ; [L254] int tmp___1 ; [L255] int tmp___2 ; [L258] splverifierCounter = 0 Loop: [L260] COND TRUE 1 [L262] COND TRUE splverifierCounter < 4 [L268] tmp = __VERIFIER_nondet_int() [L270] COND FALSE !(\read(tmp)) [L278] tmp___0 = __VERIFIER_nondet_int() [L280] COND FALSE !(\read(tmp___0)) [L288] tmp___2 = __VERIFIER_nondet_int() [L290] COND TRUE \read(tmp___2) [L59] COND FALSE !(\read(pumpRunning)) [L66] COND TRUE \read(systemActive) [L114] int tmp ; [L117] COND FALSE !(\read(pumpRunning)) [L88] int tmp ; [L91] COND FALSE !(\read(pumpRunning)) [L451] int tmp ; [L452] int tmp___0 ; [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] return (retValue_acc); [L456] tmp = isMethaneLevelCritical() [L458] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:13:28,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...