./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product25.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_product25.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 24356a2f1c32c3171f965552405bf63c18ffd4b2 ............................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 20:18:08,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:18:08,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:18:08,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:18:08,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:18:08,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:18:08,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:18:08,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:18:08,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:18:08,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:18:08,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:18:08,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:18:08,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:18:08,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:18:08,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:18:08,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:18:08,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:18:08,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:18:08,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:18:08,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:18:08,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:18:08,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:18:08,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:18:08,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:18:08,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:18:08,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:18:08,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:18:08,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:18:08,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:18:08,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:18:08,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:18:08,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:18:08,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:18:08,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:18:08,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:18:08,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:18:08,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:18:08,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:18:08,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:18:08,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:18:08,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:18:08,308 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:18:08,347 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:18:08,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:18:08,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:18:08,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:18:08,349 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:18:08,349 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:18:08,350 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:18:08,350 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:18:08,350 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:18:08,351 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:18:08,351 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:18:08,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:18:08,352 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:18:08,352 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:18:08,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:18:08,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:18:08,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:18:08,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:18:08,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:18:08,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:18:08,353 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:18:08,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:18:08,353 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:18:08,354 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:18:08,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:18:08,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:18:08,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:18:08,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:18:08,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:18:08,355 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:18:08,356 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:18:08,356 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24356a2f1c32c3171f965552405bf63c18ffd4b2 [2021-07-06 20:18:08,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:18:08,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:18:08,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:18:08,704 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:18:08,705 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:18:08,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product25.cil.c [2021-07-06 20:18:08,762 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f659d7e9/36a746f9629b43f68b1362c2e1302342/FLAG4bedb5d6d [2021-07-06 20:18:09,262 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:18:09,263 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product25.cil.c [2021-07-06 20:18:09,273 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f659d7e9/36a746f9629b43f68b1362c2e1302342/FLAG4bedb5d6d [2021-07-06 20:18:09,768 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f659d7e9/36a746f9629b43f68b1362c2e1302342 [2021-07-06 20:18:09,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:18:09,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:18:09,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:18:09,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:18:09,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:18:09,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:18:09" (1/1) ... [2021-07-06 20:18:09,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a9dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:09, skipping insertion in model container [2021-07-06 20:18:09,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:18:09" (1/1) ... [2021-07-06 20:18:09,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:18:09,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:18:10,048 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_product25.cil.c[7481,7494] [2021-07-06 20:18:10,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:18:10,087 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:18:10,114 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_product25.cil.c[7481,7494] [2021-07-06 20:18:10,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:18:10,158 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:18:10,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:10 WrapperNode [2021-07-06 20:18:10,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:18:10,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:18:10,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:18:10,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:18:10,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:10" (1/1) ... [2021-07-06 20:18:10,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:10" (1/1) ... [2021-07-06 20:18:10,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:18:10,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:18:10,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:18:10,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:18:10,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:10" (1/1) ... [2021-07-06 20:18:10,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:10" (1/1) ... [2021-07-06 20:18:10,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:10" (1/1) ... [2021-07-06 20:18:10,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:10" (1/1) ... [2021-07-06 20:18:10,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:10" (1/1) ... [2021-07-06 20:18:10,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:10" (1/1) ... [2021-07-06 20:18:10,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:10" (1/1) ... [2021-07-06 20:18:10,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:18:10,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:18:10,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:18:10,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:18:10,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:10" (1/1) ... [2021-07-06 20:18:10,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:18:10,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:18:10,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 20:18:10,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-07-06 20:18:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:18:10,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:18:10,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:18:10,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:18:11,129 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:18:11,144 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-07-06 20:18:11,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:18:11 BoogieIcfgContainer [2021-07-06 20:18:11,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:18:11,147 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:18:11,147 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:18:11,150 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:18:11,151 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:18:11,151 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:18:09" (1/3) ... [2021-07-06 20:18:11,152 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e66663c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:18:11, skipping insertion in model container [2021-07-06 20:18:11,152 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:18:11,152 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:18:10" (2/3) ... [2021-07-06 20:18:11,152 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e66663c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:18:11, skipping insertion in model container [2021-07-06 20:18:11,152 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:18:11,153 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:18:11" (3/3) ... [2021-07-06 20:18:11,154 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product25.cil.c [2021-07-06 20:18:11,189 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:18:11,189 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:18:11,189 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:18:11,189 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:18:11,190 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:18:11,190 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:18:11,190 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:18:11,190 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:18:11,204 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 76 states, 75 states have (on average 1.5333333333333334) internal successors, (115), 75 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:18:11,228 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-07-06 20:18:11,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:18:11,228 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:18:11,235 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:18:11,235 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:18:11,235 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:18:11,237 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 76 states, 75 states have (on average 1.5333333333333334) internal successors, (115), 75 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:18:11,247 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-07-06 20:18:11,248 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:18:11,248 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:18:11,250 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:18:11,250 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:18:11,259 INFO L791 eck$LassoCheckResult]: Stem: 30#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~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);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(21);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(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 8#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 72#L170true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 63#L178true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 60#L134true assume 0 != main_~tmp~0; 67#L105true ~methAndRunningLastTime~0 := 0; 31#L531true havoc test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 33#L542-1true [2021-07-06 20:18:11,260 INFO L793 eck$LassoCheckResult]: Loop: 33#L542-1true assume !false; 37#L194true assume test_~splverifierCounter~0 < 4; 54#L195true test_~tmp~1 := test_#t~nondet9;havoc test_#t~nondet9; 75#L203true assume !(0 != test_~tmp~1); 73#L203-1true test_~tmp___0~0 := test_#t~nondet10;havoc test_#t~nondet10; 50#L213true assume !(0 != test_~tmp___0~0); 26#L213-1true test_~tmp___2~0 := test_#t~nondet11;havoc test_#t~nondet11; 27#L223true assume 0 != test_~tmp___2~0; 78#L229-2true assume !(0 != ~pumpRunning~0); 6#L263true assume !(0 != ~systemActive~0); 16#L270true havoc __utac_acc__Specification2_spec__2_#t~ret43, __utac_acc__Specification2_spec__2_#t~ret44, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 65#L470true __utac_acc__Specification2_spec__2_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret43;havoc __utac_acc__Specification2_spec__2_#t~ret43; 28#L542true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 33#L542-1true [2021-07-06 20:18:11,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:18:11,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-07-06 20:18:11,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:18:11,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151630241] [2021-07-06 20:18:11,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:18:11,278 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:18:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:18:11,511 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:18:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:18:11,580 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:18:11,636 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:18:11,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:18:11,639 INFO L82 PathProgramCache]: Analyzing trace with hash 2599242, now seen corresponding path program 1 times [2021-07-06 20:18:11,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:18:11,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624806000] [2021-07-06 20:18:11,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:18:11,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:18:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:18:11,652 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:18:11,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:18:11,676 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:18:11,680 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:18:11,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:18:11,682 INFO L82 PathProgramCache]: Analyzing trace with hash 835895748, now seen corresponding path program 1 times [2021-07-06 20:18:11,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:18:11,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971413471] [2021-07-06 20:18:11,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:18:11,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:18:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:18:11,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:18:11,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:18:11,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:18:11,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:18:11,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:18:11,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:18:11,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:18:11,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 20:18:11,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:18:11,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:18:11,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:18:11,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:18:11,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971413471] [2021-07-06 20:18:11,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971413471] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:18:11,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:18:11,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-06 20:18:11,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267436999] [2021-07-06 20:18:11,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:18:11,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-06 20:18:11,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:18:11,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-06 20:18:11,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-06 20:18:11,952 INFO L87 Difference]: Start difference. First operand has 76 states, 75 states have (on average 1.5333333333333334) internal successors, (115), 75 states have internal predecessors, (115), 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 20:18:12,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:18:12,106 INFO L93 Difference]: Finished difference Result 76 states and 104 transitions. [2021-07-06 20:18:12,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-06 20:18:12,109 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 104 transitions. [2021-07-06 20:18:12,117 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-07-06 20:18:12,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 69 states and 97 transitions. [2021-07-06 20:18:12,122 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2021-07-06 20:18:12,123 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 69 [2021-07-06 20:18:12,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 97 transitions. [2021-07-06 20:18:12,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:18:12,124 INFO L681 BuchiCegarLoop]: Abstraction has 69 states and 97 transitions. [2021-07-06 20:18:12,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 97 transitions. [2021-07-06 20:18:12,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-07-06 20:18:12,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 68 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:18:12,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 97 transitions. [2021-07-06 20:18:12,150 INFO L704 BuchiCegarLoop]: Abstraction has 69 states and 97 transitions. [2021-07-06 20:18:12,150 INFO L587 BuchiCegarLoop]: Abstraction has 69 states and 97 transitions. [2021-07-06 20:18:12,150 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:18:12,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 97 transitions. [2021-07-06 20:18:12,151 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-07-06 20:18:12,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:18:12,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:18:12,152 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:18:12,152 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:18:12,152 INFO L791 eck$LassoCheckResult]: Stem: 212#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~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);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(21);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(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 180#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 181#L170 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 236#L178 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 233#L134 assume 0 != main_~tmp~0; 234#L105 ~methAndRunningLastTime~0 := 0; 213#L531 havoc test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 210#L542-1 [2021-07-06 20:18:12,153 INFO L793 eck$LassoCheckResult]: Loop: 210#L542-1 assume !false; 214#L194 assume test_~splverifierCounter~0 < 4; 218#L195 test_~tmp~1 := test_#t~nondet9;havoc test_#t~nondet9; 231#L203 assume !(0 != test_~tmp~1); 237#L203-1 test_~tmp___0~0 := test_#t~nondet10;havoc test_#t~nondet10; 226#L213 assume !(0 != test_~tmp___0~0); 185#L213-1 test_~tmp___2~0 := test_#t~nondet11;havoc test_#t~nondet11; 206#L223 assume 0 != test_~tmp___2~0; 208#L229-2 assume !(0 != ~pumpRunning~0); 176#L263 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 177#L295 assume !(0 != ~pumpRunning~0); 187#L270 havoc __utac_acc__Specification2_spec__2_#t~ret43, __utac_acc__Specification2_spec__2_#t~ret44, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 191#L470 __utac_acc__Specification2_spec__2_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret43;havoc __utac_acc__Specification2_spec__2_#t~ret43; 209#L542 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 210#L542-1 [2021-07-06 20:18:12,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:18:12,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-07-06 20:18:12,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:18:12,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663667172] [2021-07-06 20:18:12,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:18:12,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:18:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:18:12,199 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:18:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:18:12,238 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:18:12,251 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:18:12,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:18:12,257 INFO L82 PathProgramCache]: Analyzing trace with hash 53583393, now seen corresponding path program 1 times [2021-07-06 20:18:12,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:18:12,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58016888] [2021-07-06 20:18:12,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:18:12,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:18:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:18:12,262 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:18:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:18:12,267 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:18:12,272 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:18:12,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:18:12,272 INFO L82 PathProgramCache]: Analyzing trace with hash 115971303, now seen corresponding path program 1 times [2021-07-06 20:18:12,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:18:12,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326227293] [2021-07-06 20:18:12,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:18:12,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:18:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:18:12,331 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:18:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:18:12,385 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:18:12,394 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:18:12,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:18:12,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-06 20:18:52,131 WARN L205 SmtUtils]: Spent 39.66 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-07-06 20:18:52,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:18:52,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2130 [2021-07-06 20:19:12,576 WARN L205 SmtUtils]: Spent 20.37 s on a formula simplification that was a NOOP. DAG size: 435 [2021-07-06 20:19:12,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:19:12 BoogieIcfgContainer [2021-07-06 20:19:12,659 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:19:12,660 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:19:12,660 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:19:12,660 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:19:12,660 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:18:11" (3/4) ... [2021-07-06 20:19:12,663 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:19:12,708 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:19:12,713 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:19:12,714 INFO L168 Benchmark]: Toolchain (without parser) took 62942.14 ms. Allocated memory was 60.8 MB in the beginning and 96.5 MB in the end (delta: 35.7 MB). Free memory was 40.1 MB in the beginning and 28.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 45.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:19:12,714 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 60.8 MB. Free memory was 42.5 MB in the beginning and 42.5 MB in the end (delta: 51.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:19:12,715 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.18 ms. Allocated memory is still 60.8 MB. Free memory was 39.8 MB in the beginning and 34.0 MB in the end (delta: 5.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-06 20:19:12,715 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.91 ms. Allocated memory is still 60.8 MB. Free memory was 33.8 MB in the beginning and 31.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:19:12,715 INFO L168 Benchmark]: Boogie Preprocessor took 51.46 ms. Allocated memory is still 60.8 MB. Free memory was 31.0 MB in the beginning and 28.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:19:12,716 INFO L168 Benchmark]: RCFGBuilder took 888.32 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 28.8 MB in the beginning and 55.0 MB in the end (delta: -26.1 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2021-07-06 20:19:12,719 INFO L168 Benchmark]: BuchiAutomizer took 61511.89 ms. Allocated memory was 75.5 MB in the beginning and 96.5 MB in the end (delta: 21.0 MB). Free memory was 55.0 MB in the beginning and 30.8 MB in the end (delta: 24.1 MB). Peak memory consumption was 63.3 MB. Max. memory is 16.1 GB. [2021-07-06 20:19:12,721 INFO L168 Benchmark]: Witness Printer took 53.26 ms. Allocated memory is still 96.5 MB. Free memory was 30.8 MB in the beginning and 28.7 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:19:12,723 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 60.8 MB. Free memory was 42.5 MB in the beginning and 42.5 MB in the end (delta: 51.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 386.18 ms. Allocated memory is still 60.8 MB. Free memory was 39.8 MB in the beginning and 34.0 MB in the end (delta: 5.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.91 ms. Allocated memory is still 60.8 MB. Free memory was 33.8 MB in the beginning and 31.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.46 ms. Allocated memory is still 60.8 MB. Free memory was 31.0 MB in the beginning and 28.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 888.32 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 28.8 MB in the beginning and 55.0 MB in the end (delta: -26.1 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 61511.89 ms. Allocated memory was 75.5 MB in the beginning and 96.5 MB in the end (delta: 21.0 MB). Free memory was 55.0 MB in the beginning and 30.8 MB in the end (delta: 24.1 MB). Peak memory consumption was 63.3 MB. Max. memory is 16.1 GB. * Witness Printer took 53.26 ms. Allocated memory is still 96.5 MB. Free memory was 30.8 MB in the beginning and 28.7 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 69 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 61.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 61.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 14.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 69 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 99 SDtfs, 304 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 91.9ms 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: 193]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6908} State at position 1 is {NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14b33bce=0, retValue_acc=0, NULL=6908, NULL=0, NULL=6918, NULL=6936, NULL=0, NULL=6927, NULL=6912, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cde727=0, NULL=6913, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48eb06af=0, NULL=0, NULL=0, NULL=0, NULL=6910, NULL=0, tmp___1=0, NULL=6930, NULL=6917, NULL=0, NULL=0, NULL=6934, cleanupTimeShifts=4, NULL=6925, tmp=0, NULL=6931, NULL=6924, NULL=6928, NULL=6935, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5aedea7e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9dc8f77=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, retValue_acc=0, tmp___0=0, NULL=6914, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=6933, NULL=6919, NULL=0, NULL=0, NULL=6922, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6adefcd7=0, NULL=0, NULL=0, NULL=6921, NULL=0, NULL=0, NULL=6920, NULL=0, NULL=0, NULL=6909, NULL=0, retValue_acc=1, tmp___2=69, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=6916, NULL=6915, NULL=6911, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@747073f6=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b9cb33c=69, head=0, NULL=6932, NULL=6923, NULL=0, NULL=6929, tmp=0, NULL=6926} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L255] int pumpRunning = 0; [L256] int systemActive = 1; [L427] int waterLevel = 1; [L428] int methaneLevelCritical = 0; [L525] int methAndRunningLastTime ; [L733] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L125] int retValue_acc ; [L126] int tmp ; [L174] int retValue_acc ; [L177] retValue_acc = 1 [L178] return (retValue_acc); [L132] tmp = valid_product() [L134] COND TRUE \read(tmp) [L530] methAndRunningLastTime = 0 [L184] int splverifierCounter ; [L185] int tmp ; [L186] int tmp___0 ; [L187] int tmp___1 ; [L188] int tmp___2 ; [L191] splverifierCounter = 0 Loop: [L193] COND TRUE 1 [L195] COND TRUE splverifierCounter < 4 [L201] tmp = __VERIFIER_nondet_int() [L203] COND FALSE !(\read(tmp)) [L211] tmp___0 = __VERIFIER_nondet_int() [L213] COND FALSE !(\read(tmp___0)) [L221] tmp___2 = __VERIFIER_nondet_int() [L223] COND TRUE \read(tmp___2) [L263] COND FALSE !(\read(pumpRunning)) [L270] COND TRUE \read(systemActive) [L292] int tmp ; [L295] COND FALSE !(\read(pumpRunning)) [L535] int tmp ; [L536] int tmp___0 ; [L466] int retValue_acc ; [L469] retValue_acc = methaneLevelCritical [L470] return (retValue_acc); [L540] tmp = isMethaneLevelCritical() [L542] COND FALSE !(\read(tmp)) [L558] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:19:12,769 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...