./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product12.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_product12.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 15efa77def43d479206e17bb9981463db781c0a6 ............................................................................................................................................................................................................................................................................................................................................................................. 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 16:14:43,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:14:43,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:14:43,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:14:43,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:14:43,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:14:43,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:14:43,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:14:43,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:14:43,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:14:43,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:14:43,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:14:43,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:14:43,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:14:43,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:14:43,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:14:43,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:14:43,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:14:43,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:14:43,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:14:43,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:14:43,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:14:43,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:14:43,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:14:43,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:14:43,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:14:43,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:14:43,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:14:43,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:14:43,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:14:43,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:14:43,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:14:43,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:14:43,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:14:43,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:14:43,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:14:43,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:14:43,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:14:43,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:14:43,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:14:43,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:14:43,167 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:14:43,202 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:14:43,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:14:43,204 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:14:43,204 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:14:43,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:14:43,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:14:43,206 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:14:43,206 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:14:43,207 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:14:43,207 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:14:43,207 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:14:43,208 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:14:43,208 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:14:43,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:14:43,222 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:14:43,222 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:14:43,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:14:43,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:14:43,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:14:43,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:14:43,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:14:43,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:14:43,223 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:14:43,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:14:43,224 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:14:43,224 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:14:43,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:14:43,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:14:43,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:14:43,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:14:43,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:14:43,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:14:43,227 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:14:43,227 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15efa77def43d479206e17bb9981463db781c0a6 [2021-08-27 16:14:43,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:14:43,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:14:43,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:14:43,580 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:14:43,580 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:14:43,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c [2021-08-27 16:14:43,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71f95e147/ebf327f0d5c54487b5380c9710e3e675/FLAG80c05c2aa [2021-08-27 16:14:44,086 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:14:44,088 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c [2021-08-27 16:14:44,103 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71f95e147/ebf327f0d5c54487b5380c9710e3e675/FLAG80c05c2aa [2021-08-27 16:14:44,452 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71f95e147/ebf327f0d5c54487b5380c9710e3e675 [2021-08-27 16:14:44,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:14:44,455 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:14:44,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:14:44,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:14:44,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:14:44,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:14:44" (1/1) ... [2021-08-27 16:14:44,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22fda446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:44, skipping insertion in model container [2021-08-27 16:14:44,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:14:44" (1/1) ... [2021-08-27 16:14:44,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:14:44,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:14:44,755 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_product12.cil.c[16910,16923] [2021-08-27 16:14:44,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:14:44,762 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:14:44,814 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_product12.cil.c[16910,16923] [2021-08-27 16:14:44,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:14:44,831 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:14:44,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:44 WrapperNode [2021-08-27 16:14:44,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:14:44,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:14:44,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:14:44,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:14:44,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:44" (1/1) ... [2021-08-27 16:14:44,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:44" (1/1) ... [2021-08-27 16:14:44,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:14:44,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:14:44,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:14:44,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:14:44,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:44" (1/1) ... [2021-08-27 16:14:44,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:44" (1/1) ... [2021-08-27 16:14:44,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:44" (1/1) ... [2021-08-27 16:14:44,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:44" (1/1) ... [2021-08-27 16:14:44,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:44" (1/1) ... [2021-08-27 16:14:44,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:44" (1/1) ... [2021-08-27 16:14:44,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:44" (1/1) ... [2021-08-27 16:14:44,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:14:44,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:14:44,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:14:44,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:14:44,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:44" (1/1) ... [2021-08-27 16:14:44,977 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:14:44,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:14:45,000 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 16:14:45,036 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 16:14:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:14:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:14:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:14:45,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:14:45,687 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:14:45,687 INFO L299 CfgBuilder]: Removed 72 assume(true) statements. [2021-08-27 16:14:45,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:14:45 BoogieIcfgContainer [2021-08-27 16:14:45,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:14:45,690 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:14:45,690 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:14:45,692 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:14:45,693 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:14:45,693 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:14:44" (1/3) ... [2021-08-27 16:14:45,694 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7933d8fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:14:45, skipping insertion in model container [2021-08-27 16:14:45,694 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:14:45,694 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:44" (2/3) ... [2021-08-27 16:14:45,695 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7933d8fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:14:45, skipping insertion in model container [2021-08-27 16:14:45,695 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:14:45,695 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:14:45" (3/3) ... [2021-08-27 16:14:45,696 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product12.cil.c [2021-08-27 16:14:45,731 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:14:45,732 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:14:45,732 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:14:45,732 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:14:45,732 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:14:45,732 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:14:45,733 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:14:45,733 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:14:45,745 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 56 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 55 states have internal predecessors, (84), 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 16:14:45,765 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2021-08-27 16:14:45,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:14:45,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:14:45,771 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:14:45,771 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:14:45,771 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:14:45,772 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 56 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 55 states have internal predecessors, (84), 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 16:14:45,781 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2021-08-27 16:14:45,781 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:14:45,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:14:45,782 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:14:45,782 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:14:45,791 INFO L791 eck$LassoCheckResult]: Stem: 50#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 37#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 10#L405true 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; 51#L413true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 47#L500true assume 0 != main_~tmp~3; 26#L477true havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 32#L138-1true [2021-08-27 16:14:45,791 INFO L793 eck$LassoCheckResult]: Loop: 32#L138-1true assume !false; 39#L171true assume test_~splverifierCounter~0 < 4; 38#L172true test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 4#L180true assume !(0 != test_~tmp~1); 19#L180-1true test_~tmp___0~1 := test_#t~nondet20;havoc test_#t~nondet20; 54#L190true assume !(0 != test_~tmp___0~1); 29#L190-1true test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 34#L200true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 49#L208-1true assume !(0 != ~pumpRunning~0); 25#L239true assume !(0 != ~systemActive~0); 57#L246true havoc __utac_acc__Specification4_spec__1_#t~ret17, __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 21#L123true __utac_acc__Specification4_spec__1_#t~ret17 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret17;havoc __utac_acc__Specification4_spec__1_#t~ret17; 55#L138true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 32#L138-1true [2021-08-27 16:14:45,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:14:45,796 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-27 16:14:45,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:14:45,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386742610] [2021-08-27 16:14:45,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:14:45,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:14:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:46,000 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:14:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:46,122 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:14:46,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:14:46,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1672941108, now seen corresponding path program 1 times [2021-08-27 16:14:46,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:14:46,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83201085] [2021-08-27 16:14:46,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:14:46,125 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:14:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:14:46,176 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 16:14:46,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:14:46,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83201085] [2021-08-27 16:14:46,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83201085] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:14:46,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:14:46,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:14:46,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502621614] [2021-08-27 16:14:46,182 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:14:46,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:14:46,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:14:46,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:14:46,194 INFO L87 Difference]: Start difference. First operand has 56 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 55 states have internal predecessors, (84), 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 16:14:46,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:14:46,243 INFO L93 Difference]: Finished difference Result 106 states and 144 transitions. [2021-08-27 16:14:46,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:14:46,245 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 144 transitions. [2021-08-27 16:14:46,248 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 66 [2021-08-27 16:14:46,251 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 92 states and 129 transitions. [2021-08-27 16:14:46,252 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2021-08-27 16:14:46,253 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2021-08-27 16:14:46,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 129 transitions. [2021-08-27 16:14:46,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:14:46,254 INFO L681 BuchiCegarLoop]: Abstraction has 92 states and 129 transitions. [2021-08-27 16:14:46,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 129 transitions. [2021-08-27 16:14:46,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2021-08-27 16:14:46,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 90 states have (on average 1.4) internal successors, (126), 89 states have internal predecessors, (126), 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 16:14:46,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 126 transitions. [2021-08-27 16:14:46,280 INFO L704 BuchiCegarLoop]: Abstraction has 90 states and 126 transitions. [2021-08-27 16:14:46,280 INFO L587 BuchiCegarLoop]: Abstraction has 90 states and 126 transitions. [2021-08-27 16:14:46,280 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:14:46,280 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states and 126 transitions. [2021-08-27 16:14:46,282 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 64 [2021-08-27 16:14:46,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:14:46,282 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:14:46,283 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:14:46,283 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:14:46,283 INFO L791 eck$LassoCheckResult]: Stem: 226#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 217#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 182#L405 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; 183#L413 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 225#L500 assume 0 != main_~tmp~3; 206#L477 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 207#L138-1 [2021-08-27 16:14:46,283 INFO L793 eck$LassoCheckResult]: Loop: 207#L138-1 assume !false; 212#L171 assume test_~splverifierCounter~0 < 4; 235#L172 test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 246#L180 assume !(0 != test_~tmp~1); 244#L180-1 test_~tmp___0~1 := test_#t~nondet20;havoc test_#t~nondet20; 243#L190 assume !(0 != test_~tmp___0~1); 241#L190-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 240#L200 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 213#L208-1 assume !(0 != ~pumpRunning~0); 204#L239 assume 0 != ~systemActive~0; 205#L246 havoc __utac_acc__Specification4_spec__1_#t~ret17, __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 230#L123 __utac_acc__Specification4_spec__1_#t~ret17 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret17;havoc __utac_acc__Specification4_spec__1_#t~ret17; 236#L138 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 207#L138-1 [2021-08-27 16:14:46,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:14:46,284 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-27 16:14:46,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:14:46,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363410076] [2021-08-27 16:14:46,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:14:46,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:14:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:46,324 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:14:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:46,381 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:14:46,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:14:46,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1673030481, now seen corresponding path program 1 times [2021-08-27 16:14:46,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:14:46,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016688933] [2021-08-27 16:14:46,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:14:46,383 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:14:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:46,388 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:14:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:46,395 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:14:46,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:14:46,396 INFO L82 PathProgramCache]: Analyzing trace with hash 41248457, now seen corresponding path program 1 times [2021-08-27 16:14:46,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:14:46,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108835847] [2021-08-27 16:14:46,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:14:46,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:14:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:46,429 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:14:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:46,496 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:15:26,180 WARN L207 SmtUtils]: Spent 39.37 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-27 16:16:06,804 WARN L207 SmtUtils]: Spent 19.73 s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-27 16:16:06,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:16:06 BoogieIcfgContainer [2021-08-27 16:16:06,900 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:16:06,900 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:16:06,900 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:16:06,900 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:16:06,901 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:14:45" (3/4) ... [2021-08-27 16:16:06,903 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:16:06,966 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:16:06,967 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:16:06,968 INFO L168 Benchmark]: Toolchain (without parser) took 82512.07 ms. Allocated memory was 69.2 MB in the beginning and 100.7 MB in the end (delta: 31.5 MB). Free memory was 50.7 MB in the beginning and 65.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:06,968 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 69.2 MB. Free memory was 51.0 MB in the beginning and 51.0 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:16:06,969 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.53 ms. Allocated memory is still 69.2 MB. Free memory was 50.5 MB in the beginning and 46.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:06,969 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.67 ms. Allocated memory is still 69.2 MB. Free memory was 46.2 MB in the beginning and 43.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:06,970 INFO L168 Benchmark]: Boogie Preprocessor took 56.11 ms. Allocated memory is still 69.2 MB. Free memory was 43.6 MB in the beginning and 41.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:06,970 INFO L168 Benchmark]: RCFGBuilder took 719.94 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 41.7 MB in the beginning and 55.1 MB in the end (delta: -13.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:06,971 INFO L168 Benchmark]: BuchiAutomizer took 81209.85 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 55.1 MB in the beginning and 67.2 MB in the end (delta: -12.1 MB). Peak memory consumption was 55.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:06,971 INFO L168 Benchmark]: Witness Printer took 66.53 ms. Allocated memory is still 100.7 MB. Free memory was 67.2 MB in the beginning and 65.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:06,975 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 69.2 MB. Free memory was 51.0 MB in the beginning and 51.0 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 376.53 ms. Allocated memory is still 69.2 MB. Free memory was 50.5 MB in the beginning and 46.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.67 ms. Allocated memory is still 69.2 MB. Free memory was 46.2 MB in the beginning and 43.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.11 ms. Allocated memory is still 69.2 MB. Free memory was 43.6 MB in the beginning and 41.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 719.94 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 41.7 MB in the beginning and 55.1 MB in the end (delta: -13.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 81209.85 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 55.1 MB in the beginning and 67.2 MB in the end (delta: -12.1 MB). Peak memory consumption was 55.2 MB. Max. memory is 16.1 GB. * Witness Printer took 66.53 ms. Allocated memory is still 100.7 MB. Free memory was 67.2 MB in the beginning and 65.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 90 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 81.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 80.9s. 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 15.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 90 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 74 SDtfs, 70 SDslu, 62 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.1ms 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: 170]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=14858} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=14861, NULL=0, NULL=14858, NULL=0, NULL=46212, retValue_acc=0, NULL=0, NULL=46221, NULL=46224, NULL=46215, NULL=46219, methaneLevelCritical=0, NULL=14859, NULL=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=46227, NULL=46220, cleanupTimeShifts=4, NULL=46225, tmp=0, NULL=14863, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ddcd2c0=0, NULL=14862, NULL=0, NULL=14860, \result=1, retValue_acc=1, head=0, pumpRunning=0, \result=0, tmp=1, NULL=46216, NULL=0, NULL=46213, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4116f3d8=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3689539e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65d8140a=0, NULL=46228, tmp=1, NULL=0, NULL=0, NULL=46210, NULL=0, NULL=0, NULL=14864, tmp___2=68, NULL=0, NULL=46222, tmp___0=0, NULL=46209, splverifierCounter=0, NULL=0, NULL=46211, NULL=46208, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@167cefa5=0, NULL=46217, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@541b3812=68, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@309de153=0, NULL=0, NULL=0, NULL=46218, NULL=14865, NULL=46226, NULL=46223, NULL=46214} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L232] int pumpRunning = 0; [L233] int systemActive = 1; [L418] int cleanupTimeShifts = 4; [L683] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L491] int retValue_acc ; [L492] int tmp ; [L409] int retValue_acc ; [L412] retValue_acc = 1 [L413] return (retValue_acc); [L498] tmp = valid_product() [L500] COND TRUE \read(tmp) [L161] int splverifierCounter ; [L162] int tmp ; [L163] int tmp___0 ; [L164] int tmp___1 ; [L165] int tmp___2 ; [L168] splverifierCounter = 0 Loop: [L170] COND TRUE 1 [L172] COND TRUE splverifierCounter < 4 [L178] tmp = __VERIFIER_nondet_int() [L180] COND FALSE !(\read(tmp)) [L188] tmp___0 = __VERIFIER_nondet_int() [L190] COND FALSE !(\read(tmp___0)) [L198] tmp___2 = __VERIFIER_nondet_int() [L200] COND TRUE \read(tmp___2) [L375] systemActive = 1 [L239] COND FALSE !(\read(pumpRunning)) [L246] COND TRUE \read(systemActive) [L131] int tmp ; [L132] int tmp___0 ; [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L136] tmp = getWaterLevel() [L138] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:16:07,049 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...