./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product18.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 5eed478f48f8cf940c15b323900b8556a7a21390 ............................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 16:15:16,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:15:16,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:15:16,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:15:16,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:15:16,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:15:16,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:15:16,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:15:16,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:15:16,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:15:16,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:15:16,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:15:16,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:15:16,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:15:16,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:15:16,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:15:16,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:15:16,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:15:16,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:15:16,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:15:16,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:15:16,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:15:16,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:15:16,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:15:16,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:15:16,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:15:16,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:15:16,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:15:16,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:15:16,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:15:16,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:15:16,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:15:16,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:15:16,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:15:16,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:15:16,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:15:16,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:15:16,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:15:16,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:15:16,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:15:16,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:15:16,190 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:15:16,217 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:15:16,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:15:16,218 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:15:16,218 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:15:16,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:15:16,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:15:16,220 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:15:16,220 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:15:16,220 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:15:16,220 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:15:16,221 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:15:16,221 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:15:16,221 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:15:16,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:15:16,222 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:15:16,222 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:15:16,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:15:16,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:15:16,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:15:16,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:15:16,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:15:16,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:15:16,229 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:15:16,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:15:16,229 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:15:16,229 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:15:16,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:15:16,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:15:16,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:15:16,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:15:16,230 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:15:16,231 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:15:16,232 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:15:16,232 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5eed478f48f8cf940c15b323900b8556a7a21390 [2021-08-27 16:15:16,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:15:16,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:15:16,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:15:16,487 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:15:16,487 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:15:16,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product18.cil.c [2021-08-27 16:15:16,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ffd7fdfd/6fd15565d3bf475e9893686d98013bd1/FLAG73b1e110d [2021-08-27 16:15:16,871 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:15:16,873 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product18.cil.c [2021-08-27 16:15:16,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ffd7fdfd/6fd15565d3bf475e9893686d98013bd1/FLAG73b1e110d [2021-08-27 16:15:17,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ffd7fdfd/6fd15565d3bf475e9893686d98013bd1 [2021-08-27 16:15:17,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:15:17,288 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:15:17,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:15:17,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:15:17,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:15:17,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:15:17" (1/1) ... [2021-08-27 16:15:17,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dcad494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:17, skipping insertion in model container [2021-08-27 16:15:17,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:15:17" (1/1) ... [2021-08-27 16:15:17,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:15:17,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:15:17,469 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product18.cil.c[7655,7668] [2021-08-27 16:15:17,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:15:17,540 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:15:17,575 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product18.cil.c[7655,7668] [2021-08-27 16:15:17,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:15:17,627 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:15:17,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:17 WrapperNode [2021-08-27 16:15:17,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:15:17,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:15:17,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:15:17,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:15:17,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:17" (1/1) ... [2021-08-27 16:15:17,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:17" (1/1) ... [2021-08-27 16:15:17,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:15:17,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:15:17,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:15:17,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:15:17,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:17" (1/1) ... [2021-08-27 16:15:17,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:17" (1/1) ... [2021-08-27 16:15:17,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:17" (1/1) ... [2021-08-27 16:15:17,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:17" (1/1) ... [2021-08-27 16:15:17,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:17" (1/1) ... [2021-08-27 16:15:17,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:17" (1/1) ... [2021-08-27 16:15:17,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:17" (1/1) ... [2021-08-27 16:15:17,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:15:17,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:15:17,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:15:17,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:15:17,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:17" (1/1) ... [2021-08-27 16:15:17,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:15:17,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:15:17,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 16:15:17,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 16:15:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:15:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:15:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:15:17,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:15:18,333 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:15:18,334 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-08-27 16:15:18,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:15:18 BoogieIcfgContainer [2021-08-27 16:15:18,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:15:18,338 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:15:18,338 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:15:18,341 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:15:18,341 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:15:18,342 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:15:17" (1/3) ... [2021-08-27 16:15:18,343 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4389c8ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:15:18, skipping insertion in model container [2021-08-27 16:15:18,343 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:15:18,343 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:17" (2/3) ... [2021-08-27 16:15:18,343 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4389c8ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:15:18, skipping insertion in model container [2021-08-27 16:15:18,343 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:15:18,343 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:15:18" (3/3) ... [2021-08-27 16:15:18,344 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product18.cil.c [2021-08-27 16:15:18,376 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:15:18,376 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:15:18,376 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:15:18,377 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:15:18,377 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:15:18,377 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:15:18,377 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:15:18,377 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:15:18,390 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:15:18,412 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-08-27 16:15:18,412 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:15:18,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:15:18,418 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:15:18,418 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:15:18,418 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:15:18,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:15:18,428 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-08-27 16:15:18,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:15:18,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:15:18,429 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:15:18,429 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:15:18,432 INFO L791 eck$LassoCheckResult]: Stem: 58#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 45#L-1true havoc main_#res;havoc main_#t~ret30, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 25#L432true 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; 36#L440true main_#t~ret30 := valid_product_#res;main_~tmp~3 := main_#t~ret30;havoc main_#t~ret30; 46#L368true assume 0 != main_~tmp~3; 40#L342true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 22#L392-1true [2021-08-27 16:15:18,433 INFO L793 eck$LassoCheckResult]: Loop: 22#L392-1true assume !false; 44#L58true assume test_~splverifierCounter~0 < 4; 41#L59true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 57#L67true assume !(0 != test_~tmp~0); 32#L67-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 11#L77true assume !(0 != test_~tmp___0~0); 26#L77-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 60#L87true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 38#L95-2true assume !(0 != ~pumpRunning~0); 64#L130true assume !(0 != ~systemActive~0); 67#L137true havoc __utac_acc__Specification4_spec__1_#t~ret31, __utac_acc__Specification4_spec__1_#t~ret32, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 48#L520true __utac_acc__Specification4_spec__1_#t~ret31 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret31;havoc __utac_acc__Specification4_spec__1_#t~ret31; 52#L392true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 22#L392-1true [2021-08-27 16:15:18,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:15:18,437 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-27 16:15:18,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:15:18,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313180511] [2021-08-27 16:15:18,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:15:18,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:15:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:15:18,571 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:15:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:15:18,665 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:15:18,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:15:18,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1680729469, now seen corresponding path program 1 times [2021-08-27 16:15:18,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:15:18,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69138741] [2021-08-27 16:15:18,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:15:18,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:15:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:15:18,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:15:18,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:15:18,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69138741] [2021-08-27 16:15:18,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69138741] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:15:18,741 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:15:18,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:15:18,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32121791] [2021-08-27 16:15:18,745 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:15:18,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:15:18,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:15:18,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:15:18,763 INFO L87 Difference]: Start difference. First operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:15:18,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:15:18,795 INFO L93 Difference]: Finished difference Result 72 states and 98 transitions. [2021-08-27 16:15:18,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:15:18,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 98 transitions. [2021-08-27 16:15:18,799 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-08-27 16:15:18,804 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 90 transitions. [2021-08-27 16:15:18,805 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2021-08-27 16:15:18,805 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2021-08-27 16:15:18,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 90 transitions. [2021-08-27 16:15:18,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:15:18,807 INFO L681 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-08-27 16:15:18,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 90 transitions. [2021-08-27 16:15:18,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-08-27 16:15:18,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 64 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:15:18,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2021-08-27 16:15:18,836 INFO L704 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-08-27 16:15:18,836 INFO L587 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-08-27 16:15:18,836 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:15:18,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 90 transitions. [2021-08-27 16:15:18,840 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-08-27 16:15:18,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:15:18,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:15:18,841 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:15:18,841 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:15:18,841 INFO L791 eck$LassoCheckResult]: Stem: 216#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 207#L-1 havoc main_#res;havoc main_#t~ret30, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 186#L432 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; 187#L440 main_#t~ret30 := valid_product_#res;main_~tmp~3 := main_#t~ret30;havoc main_#t~ret30; 200#L368 assume 0 != main_~tmp~3; 204#L342 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 180#L392-1 [2021-08-27 16:15:18,842 INFO L793 eck$LassoCheckResult]: Loop: 180#L392-1 assume !false; 181#L58 assume test_~splverifierCounter~0 < 4; 205#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 206#L67 assume !(0 != test_~tmp~0); 197#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 169#L77 assume !(0 != test_~tmp___0~0); 154#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 188#L87 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 190#L95-2 assume !(0 != ~pumpRunning~0); 201#L130 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 203#L162 assume !(0 != ~pumpRunning~0); 196#L137 havoc __utac_acc__Specification4_spec__1_#t~ret31, __utac_acc__Specification4_spec__1_#t~ret32, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 209#L520 __utac_acc__Specification4_spec__1_#t~ret31 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret31;havoc __utac_acc__Specification4_spec__1_#t~ret31; 210#L392 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 180#L392-1 [2021-08-27 16:15:18,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:15:18,842 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-27 16:15:18,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:15:18,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117522318] [2021-08-27 16:15:18,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:15:18,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:15:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:15:18,900 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:15:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:15:18,965 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:15:18,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:15:18,966 INFO L82 PathProgramCache]: Analyzing trace with hash -589998917, now seen corresponding path program 1 times [2021-08-27 16:15:18,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:15:18,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566107855] [2021-08-27 16:15:18,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:15:18,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:15:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:15:18,973 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:15:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:15:18,981 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:15:18,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:15:18,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1013040609, now seen corresponding path program 1 times [2021-08-27 16:15:18,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:15:18,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135458594] [2021-08-27 16:15:18,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:15:18,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:15:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:15:19,012 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:15:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:15:19,068 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:15:59,445 WARN L207 SmtUtils]: Spent 40.28 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-27 16:16:40,555 WARN L207 SmtUtils]: Spent 19.67 s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-27 16:16:40,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:16:40 BoogieIcfgContainer [2021-08-27 16:16:40,643 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:16:40,643 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:16:40,643 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:16:40,644 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:16:40,644 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:15:18" (3/4) ... [2021-08-27 16:16:40,646 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:16:40,681 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:16:40,683 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:16:40,684 INFO L168 Benchmark]: Toolchain (without parser) took 83395.35 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 36.9 MB in the beginning and 18.9 MB in the end (delta: 18.1 MB). Peak memory consumption was 48.6 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:40,684 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 40.7 MB in the end (delta: 44.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:16:40,685 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.31 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 36.7 MB in the beginning and 48.6 MB in the end (delta: -11.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:40,685 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.19 ms. Allocated memory is still 71.3 MB. Free memory was 48.6 MB in the beginning and 45.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:40,686 INFO L168 Benchmark]: Boogie Preprocessor took 35.00 ms. Allocated memory is still 71.3 MB. Free memory was 45.7 MB in the beginning and 43.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:40,686 INFO L168 Benchmark]: RCFGBuilder took 628.89 ms. Allocated memory is still 71.3 MB. Free memory was 43.6 MB in the beginning and 47.2 MB in the end (delta: -3.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:40,686 INFO L168 Benchmark]: BuchiAutomizer took 82304.67 ms. Allocated memory was 71.3 MB in the beginning and 88.1 MB in the end (delta: 16.8 MB). Free memory was 46.8 MB in the beginning and 21.1 MB in the end (delta: 25.7 MB). Peak memory consumption was 49.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:40,688 INFO L168 Benchmark]: Witness Printer took 40.13 ms. Allocated memory is still 88.1 MB. Free memory was 21.1 MB in the beginning and 18.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:40,692 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 40.7 MB in the end (delta: 44.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 337.31 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 36.7 MB in the beginning and 48.6 MB in the end (delta: -11.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.19 ms. Allocated memory is still 71.3 MB. Free memory was 48.6 MB in the beginning and 45.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.00 ms. Allocated memory is still 71.3 MB. Free memory was 45.7 MB in the beginning and 43.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 628.89 ms. Allocated memory is still 71.3 MB. Free memory was 43.6 MB in the beginning and 47.2 MB in the end (delta: -3.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 82304.67 ms. Allocated memory was 71.3 MB in the beginning and 88.1 MB in the end (delta: 16.8 MB). Free memory was 46.8 MB in the beginning and 21.1 MB in the end (delta: 25.7 MB). Peak memory consumption was 49.1 MB. Max. memory is 16.1 GB. * Witness Printer took 40.13 ms. Allocated memory is still 88.1 MB. Free memory was 21.1 MB in the beginning and 18.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 65 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 82.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 82.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 20.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 65 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 95 SDtfs, 95 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.9ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 57]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3018} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2933a9d5=76, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26dd7c52=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d4cf2b0=0, NULL=3018, retValue_acc=0, NULL=3035, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6740ce23=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d4b489e=0, NULL=3026, NULL=0, NULL=3047, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4deeeb4c=0, NULL=3024, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c5bb875=0, NULL=3019, NULL=0, NULL=3027, NULL=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=3037, NULL=3031, NULL=3029, cleanupTimeShifts=4, tmp=0, NULL=3038, tmp___0=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, tmp___0=0, NULL=3022, \result=1, NULL=3040, head=0, pumpRunning=0, \result=0, tmp=1, NULL=3041, NULL=3020, NULL=0, NULL=0, NULL=0, NULL=3023, retValue_acc=1, NULL=3045, NULL=3034, NULL=0, NULL=0, tmp=1, NULL=3030, NULL=0, NULL=0, NULL=3044, NULL=0, retValue_acc=1, tmp___2=76, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d0307ad=0, NULL=3036, splverifierCounter=0, NULL=0, NULL=3048, NULL=3042, NULL=3028, tmp=0, head=0, NULL=0, NULL=0, NULL=3043, NULL=0, NULL=0, NULL=0, NULL=0, NULL=3021, NULL=0, NULL=3025, NULL=3039, NULL=3046} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L283] int cleanupTimeShifts = 4; [L445] int waterLevel = 1; [L446] int methaneLevelCritical = 0; [L712] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L359] int retValue_acc ; [L360] int tmp ; [L436] int retValue_acc ; [L439] retValue_acc = 1 [L440] return (retValue_acc); [L366] tmp = valid_product() [L368] COND TRUE \read(tmp) [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 Loop: [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L278] systemActive = 1 [L130] COND FALSE !(\read(pumpRunning)) [L137] COND TRUE \read(systemActive) [L159] int tmp ; [L162] COND FALSE !(\read(pumpRunning)) [L385] int tmp ; [L386] int tmp___0 ; [L516] int retValue_acc ; [L519] retValue_acc = waterLevel [L520] return (retValue_acc); [L390] tmp = getWaterLevel() [L392] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:16:40,729 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...