./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product20.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_spec1_product20.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 f92aef55fa426b86704369eb7f8ab70f879f200b 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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 15:53:54,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:53:54,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:53:54,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:53:54,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:53:54,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:53:54,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:53:54,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:53:54,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:53:54,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:53:54,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:53:54,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:53:54,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:53:54,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:53:54,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:53:54,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:53:54,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:53:54,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:53:54,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:53:54,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:53:54,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:53:54,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:53:54,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:53:54,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:53:54,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:53:54,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:53:54,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:53:54,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:53:54,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:53:54,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:53:54,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:53:54,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:53:54,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:53:54,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:53:54,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:53:54,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:53:54,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:53:54,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:53:54,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:53:54,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:53:54,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:53:54,117 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:53:54,143 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:53:54,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:53:54,144 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:53:54,144 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:53:54,145 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:53:54,145 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:53:54,145 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:53:54,146 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:53:54,146 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:53:54,146 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:53:54,146 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:53:54,147 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:53:54,147 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:53:54,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:53:54,147 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:53:54,147 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:53:54,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:53:54,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:53:54,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:53:54,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:53:54,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:53:54,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:53:54,148 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:53:54,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:53:54,148 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:53:54,149 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:53:54,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:53:54,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:53:54,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:53:54,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:53:54,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:53:54,150 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:53:54,150 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:53:54,150 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f92aef55fa426b86704369eb7f8ab70f879f200b [2021-08-27 15:53:54,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:53:54,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:53:54,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:53:54,441 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:53:54,441 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:53:54,442 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product20.cil.c [2021-08-27 15:53:54,504 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66e1ea2ad/4e632c147aca4dfdad00bb6db3d388a1/FLAG2c15528e1 [2021-08-27 15:53:54,945 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:53:54,946 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product20.cil.c [2021-08-27 15:53:54,953 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66e1ea2ad/4e632c147aca4dfdad00bb6db3d388a1/FLAG2c15528e1 [2021-08-27 15:53:54,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66e1ea2ad/4e632c147aca4dfdad00bb6db3d388a1 [2021-08-27 15:53:54,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:53:54,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:53:54,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:53:54,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:53:54,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:53:54,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:53:54" (1/1) ... [2021-08-27 15:53:54,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@361c887a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:54, skipping insertion in model container [2021-08-27 15:53:54,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:53:54" (1/1) ... [2021-08-27 15:53:54,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:53:55,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:53:55,082 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_spec1_product20.cil.c[1281,1294] [2021-08-27 15:53:55,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:53:55,179 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:53:55,187 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_spec1_product20.cil.c[1281,1294] [2021-08-27 15:53:55,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:53:55,226 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:53:55,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:55 WrapperNode [2021-08-27 15:53:55,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:53:55,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:53:55,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:53:55,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:53:55,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:55" (1/1) ... [2021-08-27 15:53:55,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:55" (1/1) ... [2021-08-27 15:53:55,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:53:55,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:53:55,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:53:55,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:53:55,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:55" (1/1) ... [2021-08-27 15:53:55,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:55" (1/1) ... [2021-08-27 15:53:55,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:55" (1/1) ... [2021-08-27 15:53:55,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:55" (1/1) ... [2021-08-27 15:53:55,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:55" (1/1) ... [2021-08-27 15:53:55,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:55" (1/1) ... [2021-08-27 15:53:55,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:55" (1/1) ... [2021-08-27 15:53:55,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:53:55,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:53:55,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:53:55,296 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:53:55,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:55" (1/1) ... [2021-08-27 15:53:55,301 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:53:55,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:53:55,328 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 15:53:55,368 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 15:53:55,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:53:55,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:53:55,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:53:55,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:53:55,874 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:53:55,874 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-08-27 15:53:55,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:53:55 BoogieIcfgContainer [2021-08-27 15:53:55,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:53:55,876 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:53:55,876 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:53:55,879 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:53:55,880 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:53:55,880 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:53:54" (1/3) ... [2021-08-27 15:53:55,881 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58a6b036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:53:55, skipping insertion in model container [2021-08-27 15:53:55,881 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:53:55,881 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:55" (2/3) ... [2021-08-27 15:53:55,881 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58a6b036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:53:55, skipping insertion in model container [2021-08-27 15:53:55,882 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:53:55,882 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:53:55" (3/3) ... [2021-08-27 15:53:55,882 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product20.cil.c [2021-08-27 15:53:55,924 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:53:55,924 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:53:55,924 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:53:55,925 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:53:55,925 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:53:55,925 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:53:55,925 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:53:55,925 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:53:55,938 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 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 15:53:55,955 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-08-27 15:53:55,956 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:53:55,956 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:53:55,960 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:53:55,961 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:53:55,961 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:53:55,962 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 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 15:53:55,970 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-08-27 15:53:55,970 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:53:55,970 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:53:55,971 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:53:55,971 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:53:55,977 INFO L791 eck$LassoCheckResult]: Stem: 52#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(13);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(77, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(101, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(116, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(104, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string36.base, #t~string36.offset, 1);call write~init~int(82, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(73, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(84, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 4 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(75, #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(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);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~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 39#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 60#L887true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 14#L895true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 46#L141true assume 0 != main_~tmp~0; 55#L114true havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 37#L908-1true [2021-08-27 15:53:55,978 INFO L793 eck$LassoCheckResult]: Loop: 37#L908-1true assume !false; 5#L168true assume test_~splverifierCounter~0 < 4; 65#L169true test_~tmp~1 := test_#t~nondet8;havoc test_#t~nondet8; 57#L177true assume !(0 != test_~tmp~1); 63#L177-1true test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 58#L187true assume !(0 != test_~tmp___0~0); 34#L187-1true test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 8#L197true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 54#L205-1true assume !(0 != ~pumpRunning~0); 30#L241true assume !(0 != ~systemActive~0); 74#L248true havoc __utac_acc__Specification1_spec__1_#t~ret77, __utac_acc__Specification1_spec__1_#t~ret78, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 44#L453true __utac_acc__Specification1_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret77;havoc __utac_acc__Specification1_spec__1_#t~ret77; 4#L908true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 37#L908-1true [2021-08-27 15:53:55,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:53:55,982 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-27 15:53:55,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:53:55,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419825313] [2021-08-27 15:53:55,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:53:55,988 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:53:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:53:56,168 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:53:56,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:53:56,289 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:53:56,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:53:56,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1672140724, now seen corresponding path program 1 times [2021-08-27 15:53:56,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:53:56,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965983469] [2021-08-27 15:53:56,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:53:56,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:53:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:53:56,380 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 15:53:56,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:53:56,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965983469] [2021-08-27 15:53:56,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965983469] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:53:56,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:53:56,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 15:53:56,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095965647] [2021-08-27 15:53:56,398 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 15:53:56,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:53:56,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 15:53:56,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 15:53:56,414 INFO L87 Difference]: Start difference. First operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 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 15:53:56,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:53:56,478 INFO L93 Difference]: Finished difference Result 142 states and 198 transitions. [2021-08-27 15:53:56,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 15:53:56,480 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 198 transitions. [2021-08-27 15:53:56,488 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 90 [2021-08-27 15:53:56,492 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 128 states and 183 transitions. [2021-08-27 15:53:56,493 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 128 [2021-08-27 15:53:56,494 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 128 [2021-08-27 15:53:56,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 183 transitions. [2021-08-27 15:53:56,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:53:56,496 INFO L681 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2021-08-27 15:53:56,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 183 transitions. [2021-08-27 15:53:56,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2021-08-27 15:53:56,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 126 states have (on average 1.4285714285714286) internal successors, (180), 125 states have internal predecessors, (180), 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 15:53:56,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 180 transitions. [2021-08-27 15:53:56,526 INFO L704 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2021-08-27 15:53:56,526 INFO L587 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2021-08-27 15:53:56,527 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:53:56,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 180 transitions. [2021-08-27 15:53:56,529 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2021-08-27 15:53:56,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:53:56,529 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:53:56,529 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:53:56,530 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:53:56,530 INFO L791 eck$LassoCheckResult]: Stem: 293#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(13);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(77, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(101, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(116, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(104, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string36.base, #t~string36.offset, 1);call write~init~int(82, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(73, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(84, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 4 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(75, #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(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);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~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 278#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 279#L887 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 247#L895 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 248#L141 assume 0 != main_~tmp~0; 287#L114 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 227#L908-1 [2021-08-27 15:53:56,531 INFO L793 eck$LassoCheckResult]: Loop: 227#L908-1 assume !false; 323#L168 assume test_~splverifierCounter~0 < 4; 324#L169 test_~tmp~1 := test_#t~nondet8;havoc test_#t~nondet8; 350#L177 assume !(0 != test_~tmp~1); 348#L177-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 295#L187 assume !(0 != test_~tmp___0~0); 272#L187-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 235#L197 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 236#L205-1 assume !(0 != ~pumpRunning~0); 260#L241 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 270#L273 assume !(0 != ~pumpRunning~0); 300#L248 havoc __utac_acc__Specification1_spec__1_#t~ret77, __utac_acc__Specification1_spec__1_#t~ret78, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 285#L453 __utac_acc__Specification1_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret77;havoc __utac_acc__Specification1_spec__1_#t~ret77; 225#L908 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 227#L908-1 [2021-08-27 15:53:56,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:53:56,536 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-27 15:53:56,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:53:56,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431646676] [2021-08-27 15:53:56,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:53:56,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:53:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:53:56,584 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:53:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:53:56,635 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:53:56,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:53:56,636 INFO L82 PathProgramCache]: Analyzing trace with hash -323747813, now seen corresponding path program 1 times [2021-08-27 15:53:56,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:53:56,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127336045] [2021-08-27 15:53:56,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:53:56,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:53:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:53:56,646 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:53:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:53:56,652 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:53:56,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:53:56,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1279291713, now seen corresponding path program 1 times [2021-08-27 15:53:56,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:53:56,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953618678] [2021-08-27 15:53:56,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:53:56,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:53:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:53:56,686 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:53:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:53:56,744 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:54:33,895 WARN L207 SmtUtils]: Spent 37.03 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-27 15:55:13,937 WARN L207 SmtUtils]: Spent 20.50 s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-27 15:55:14,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:55:14 BoogieIcfgContainer [2021-08-27 15:55:14,085 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:55:14,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:55:14,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:55:14,086 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:55:14,102 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:53:55" (3/4) ... [2021-08-27 15:55:14,103 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 15:55:14,191 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 15:55:14,200 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:55:14,201 INFO L168 Benchmark]: Toolchain (without parser) took 79230.35 ms. Allocated memory was 50.3 MB in the beginning and 115.3 MB in the end (delta: 65.0 MB). Free memory was 32.3 MB in the beginning and 37.4 MB in the end (delta: -5.2 MB). Peak memory consumption was 59.4 MB. Max. memory is 16.1 GB. [2021-08-27 15:55:14,202 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 41.9 MB. Free memory is still 24.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:55:14,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.96 ms. Allocated memory is still 50.3 MB. Free memory was 32.1 MB in the beginning and 27.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2021-08-27 15:55:14,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.27 ms. Allocated memory is still 50.3 MB. Free memory was 27.7 MB in the beginning and 24.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:55:14,208 INFO L168 Benchmark]: Boogie Preprocessor took 36.25 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 24.8 MB in the beginning and 47.2 MB in the end (delta: -22.5 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2021-08-27 15:55:14,208 INFO L168 Benchmark]: RCFGBuilder took 579.72 ms. Allocated memory is still 65.0 MB. Free memory was 47.2 MB in the beginning and 38.7 MB in the end (delta: 8.5 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2021-08-27 15:55:14,209 INFO L168 Benchmark]: BuchiAutomizer took 78208.94 ms. Allocated memory was 65.0 MB in the beginning and 115.3 MB in the end (delta: 50.3 MB). Free memory was 38.4 MB in the beginning and 39.5 MB in the end (delta: -1.1 MB). Peak memory consumption was 70.7 MB. Max. memory is 16.1 GB. [2021-08-27 15:55:14,209 INFO L168 Benchmark]: Witness Printer took 114.78 ms. Allocated memory is still 115.3 MB. Free memory was 39.5 MB in the beginning and 37.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:55:14,212 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 41.9 MB. Free memory is still 24.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 255.96 ms. Allocated memory is still 50.3 MB. Free memory was 32.1 MB in the beginning and 27.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.27 ms. Allocated memory is still 50.3 MB. Free memory was 27.7 MB in the beginning and 24.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.25 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 24.8 MB in the beginning and 47.2 MB in the end (delta: -22.5 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 579.72 ms. Allocated memory is still 65.0 MB. Free memory was 47.2 MB in the beginning and 38.7 MB in the end (delta: 8.5 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 78208.94 ms. Allocated memory was 65.0 MB in the beginning and 115.3 MB in the end (delta: 50.3 MB). Free memory was 38.4 MB in the beginning and 39.5 MB in the end (delta: -1.1 MB). Peak memory consumption was 70.7 MB. Max. memory is 16.1 GB. * Witness Printer took 114.78 ms. Allocated memory is still 115.3 MB. Free memory was 39.5 MB in the beginning and 37.4 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 126 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 78.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 77.9s. 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 22.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 126 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 101 SDtfs, 97 SDslu, 89 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 30.9ms 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: 167]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=20507} State at position 1 is {NULL=32554, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@573ee714=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73a3ffc3=0, NULL=20507, NULL=0, NULL=32562, NULL=0, NULL=0, NULL=32558, NULL=20508, NULL=32563, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26b45d8f=68, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c689129=0, NULL=20509, methaneLevelCritical=0, retValue_acc=1, NULL=0, NULL=0, NULL=20513, tmp___1=0, NULL=32557, NULL=32573, tmp___0=0, NULL=0, NULL=0, NULL=20511, cleanupTimeShifts=4, NULL=32568, tmp=0, NULL=32567, NULL=32555, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=20510, NULL=0, NULL=0, retValue_acc=0, tmp___0=0, NULL=32556, NULL=32572, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=20517, tmp=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c6d5c9d=0, NULL=0, NULL=0, NULL=32565, NULL=0, NULL=0, NULL=0, NULL=32566, tmp___2=68, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=32564, NULL=32571, NULL=32569, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@209a4a0b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f45311b=0, NULL=20516, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@499792cf=0, head=0, NULL=20518, NULL=32570, NULL=20515, NULL=20512, NULL=20514} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int cleanupTimeShifts = 4; [L233] int pumpRunning = 0; [L234] int systemActive = 1; [L410] int waterLevel = 1; [L411] int methaneLevelCritical = 0; [L668] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L132] int retValue_acc ; [L133] int tmp ; [L891] int retValue_acc ; [L894] retValue_acc = 1 [L895] return (retValue_acc); [L139] tmp = valid_product() [L141] COND TRUE \read(tmp) [L158] int splverifierCounter ; [L159] int tmp ; [L160] int tmp___0 ; [L161] int tmp___1 ; [L162] int tmp___2 ; [L165] splverifierCounter = 0 Loop: [L167] COND TRUE 1 [L169] COND TRUE splverifierCounter < 4 [L175] tmp = __VERIFIER_nondet_int() [L177] COND FALSE !(\read(tmp)) [L185] tmp___0 = __VERIFIER_nondet_int() [L187] COND FALSE !(\read(tmp___0)) [L195] tmp___2 = __VERIFIER_nondet_int() [L197] COND TRUE \read(tmp___2) [L404] systemActive = 1 [L241] COND FALSE !(\read(pumpRunning)) [L248] COND TRUE \read(systemActive) [L270] int tmp ; [L273] COND FALSE !(\read(pumpRunning)) [L901] int tmp ; [L902] int tmp___0 ; [L449] int retValue_acc ; [L452] retValue_acc = methaneLevelCritical [L453] return (retValue_acc); [L906] tmp = isMethaneLevelCritical() [L908] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 15:55:14,312 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...