./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product32.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_product32.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 1a5eadc7d48ecaba327c1cfd8d218dab923acf56 .................................................................................................................................................................................................................................................................................................................................................................................. 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 16:16:42,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:16:42,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:16:42,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:16:42,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:16:42,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:16:42,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:16:42,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:16:42,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:16:42,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:16:42,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:16:42,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:16:42,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:16:42,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:16:42,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:16:42,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:16:42,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:16:42,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:16:42,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:16:42,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:16:42,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:16:42,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:16:42,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:16:42,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:16:42,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:16:42,293 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:16:42,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:16:42,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:16:42,295 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:16:42,295 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:16:42,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:16:42,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:16:42,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:16:42,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:16:42,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:16:42,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:16:42,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:16:42,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:16:42,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:16:42,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:16:42,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:16:42,308 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:16:42,336 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:16:42,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:16:42,338 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:16:42,338 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:16:42,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:16:42,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:16:42,340 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:16:42,340 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:16:42,340 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:16:42,340 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:16:42,341 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:16:42,341 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:16:42,341 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:16:42,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:16:42,342 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:16:42,342 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:16:42,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:16:42,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:16:42,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:16:42,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:16:42,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:16:42,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:16:42,343 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:16:42,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:16:42,343 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:16:42,343 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:16:42,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:16:42,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:16:42,344 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:16:42,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:16:42,344 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:16:42,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:16:42,345 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:16:42,345 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a5eadc7d48ecaba327c1cfd8d218dab923acf56 [2021-08-27 16:16:42,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:16:42,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:16:42,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:16:42,707 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:16:42,707 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:16:42,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product32.cil.c [2021-08-27 16:16:42,766 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b57a42ebd/f176c3489ba2406c9ff7d845e92f632b/FLAG39e843392 [2021-08-27 16:16:43,202 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:16:43,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product32.cil.c [2021-08-27 16:16:43,220 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b57a42ebd/f176c3489ba2406c9ff7d845e92f632b/FLAG39e843392 [2021-08-27 16:16:43,543 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b57a42ebd/f176c3489ba2406c9ff7d845e92f632b [2021-08-27 16:16:43,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:16:43,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:16:43,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:16:43,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:16:43,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:16:43,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:16:43" (1/1) ... [2021-08-27 16:16:43,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f1e7ed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:43, skipping insertion in model container [2021-08-27 16:16:43,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:16:43" (1/1) ... [2021-08-27 16:16:43,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:16:43,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:16:43,765 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_product32.cil.c[2243,2256] [2021-08-27 16:16:43,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:16:43,913 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:16:43,926 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_product32.cil.c[2243,2256] [2021-08-27 16:16:43,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:16:43,977 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:16:43,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:43 WrapperNode [2021-08-27 16:16:43,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:16:43,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:16:43,979 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:16:43,979 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:16:43,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:43" (1/1) ... [2021-08-27 16:16:43,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:43" (1/1) ... [2021-08-27 16:16:44,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:16:44,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:16:44,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:16:44,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:16:44,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:43" (1/1) ... [2021-08-27 16:16:44,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:43" (1/1) ... [2021-08-27 16:16:44,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:43" (1/1) ... [2021-08-27 16:16:44,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:43" (1/1) ... [2021-08-27 16:16:44,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:43" (1/1) ... [2021-08-27 16:16:44,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:43" (1/1) ... [2021-08-27 16:16:44,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:43" (1/1) ... [2021-08-27 16:16:44,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:16:44,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:16:44,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:16:44,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:16:44,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:43" (1/1) ... [2021-08-27 16:16:44,081 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:16:44,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:16:44,106 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 16:16:44,129 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 16:16:44,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:16:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:16:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:16:44,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:16:45,054 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:16:45,055 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-08-27 16:16:45,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:16:45 BoogieIcfgContainer [2021-08-27 16:16:45,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:16:45,071 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:16:45,071 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:16:45,074 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:16:45,074 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:16:45,074 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:16:43" (1/3) ... [2021-08-27 16:16:45,075 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ae657d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:16:45, skipping insertion in model container [2021-08-27 16:16:45,075 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:16:45,075 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:43" (2/3) ... [2021-08-27 16:16:45,076 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ae657d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:16:45, skipping insertion in model container [2021-08-27 16:16:45,076 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:16:45,076 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:16:45" (3/3) ... [2021-08-27 16:16:45,077 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product32.cil.c [2021-08-27 16:16:45,130 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:16:45,130 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:16:45,130 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:16:45,130 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:16:45,130 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:16:45,131 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:16:45,131 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:16:45,131 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:16:45,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 104 states, 103 states have (on average 1.5145631067961165) internal successors, (156), 103 states have internal predecessors, (156), 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 16:16:45,165 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-08-27 16:16:45,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:16:45,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:16:45,171 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:16:45,172 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:16:45,172 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:16:45,172 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 104 states, 103 states have (on average 1.5145631067961165) internal successors, (156), 103 states have internal predecessors, (156), 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 16:16:45,178 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-08-27 16:16:45,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:16:45,179 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:16:45,179 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:16:45,179 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:16:45,183 INFO L791 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 37#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~2, main_~tmp~1;havoc main_~retValue_acc~2;havoc main_~tmp~1; 92#L96true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 20#L104true main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 68#L205true assume 0 != main_~tmp~1; 85#L181true havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 62#L53-1true [2021-08-27 16:16:45,184 INFO L793 eck$LassoCheckResult]: Loop: 62#L53-1true assume !false; 56#L911true assume test_~splverifierCounter~0 < 4; 95#L912true test_~tmp~9 := test_#t~nondet77;havoc test_#t~nondet77; 100#L920true assume !(0 != test_~tmp~9); 38#L920-1true test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 61#L930true assume !(0 != test_~tmp___0~2); 102#L930-1true test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 82#L940true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 16#L948-1true assume !(0 != ~pumpRunning~0); 73#L689true assume !(0 != ~systemActive~0); 42#L696true havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __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~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 31#L298true __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 33#L53true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 62#L53-1true [2021-08-27 16:16:45,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:16:45,189 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-27 16:16:45,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:16:45,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636500209] [2021-08-27 16:16:45,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:16:45,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:16:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:45,363 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:16:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:45,495 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:16:45,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:16:45,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1670755444, now seen corresponding path program 1 times [2021-08-27 16:16:45,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:16:45,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015176038] [2021-08-27 16:16:45,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:16:45,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:16:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:16:45,562 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 16:16:45,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:16:45,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015176038] [2021-08-27 16:16:45,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015176038] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:16:45,564 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:16:45,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:16:45,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122820353] [2021-08-27 16:16:45,568 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:16:45,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:16:45,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:16:45,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:16:45,583 INFO L87 Difference]: Start difference. First operand has 104 states, 103 states have (on average 1.5145631067961165) internal successors, (156), 103 states have internal predecessors, (156), 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 16:16:45,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:16:45,639 INFO L93 Difference]: Finished difference Result 202 states and 288 transitions. [2021-08-27 16:16:45,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:16:45,641 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 202 states and 288 transitions. [2021-08-27 16:16:45,646 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2021-08-27 16:16:45,651 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 202 states to 188 states and 273 transitions. [2021-08-27 16:16:45,652 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 188 [2021-08-27 16:16:45,653 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 188 [2021-08-27 16:16:45,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 188 states and 273 transitions. [2021-08-27 16:16:45,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:16:45,655 INFO L681 BuchiCegarLoop]: Abstraction has 188 states and 273 transitions. [2021-08-27 16:16:45,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states and 273 transitions. [2021-08-27 16:16:45,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 186. [2021-08-27 16:16:45,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 186 states have (on average 1.4516129032258065) internal successors, (270), 185 states have internal predecessors, (270), 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 16:16:45,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 270 transitions. [2021-08-27 16:16:45,689 INFO L704 BuchiCegarLoop]: Abstraction has 186 states and 270 transitions. [2021-08-27 16:16:45,689 INFO L587 BuchiCegarLoop]: Abstraction has 186 states and 270 transitions. [2021-08-27 16:16:45,690 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:16:45,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 186 states and 270 transitions. [2021-08-27 16:16:45,692 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 128 [2021-08-27 16:16:45,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:16:45,693 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:16:45,693 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:16:45,693 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:16:45,694 INFO L791 eck$LassoCheckResult]: Stem: 426#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 375#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~2, main_~tmp~1;havoc main_~retValue_acc~2;havoc main_~tmp~1; 376#L96 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 346#L104 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 347#L205 assume 0 != main_~tmp~1; 411#L181 havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 367#L53-1 [2021-08-27 16:16:45,694 INFO L793 eck$LassoCheckResult]: Loop: 367#L53-1 assume !false; 401#L911 assume test_~splverifierCounter~0 < 4; 402#L912 test_~tmp~9 := test_#t~nondet77;havoc test_#t~nondet77; 425#L920 assume !(0 != test_~tmp~9); 359#L920-1 test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 377#L930 assume !(0 != test_~tmp___0~2); 406#L930-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 427#L940 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 319#L948-1 assume !(0 != ~pumpRunning~0); 342#L689 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 337#L747 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret56, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 339#L721-1 assume !(0 != ~pumpRunning~0); 383#L696 havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __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~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 365#L298 __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 366#L53 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 367#L53-1 [2021-08-27 16:16:45,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:16:45,695 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-27 16:16:45,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:16:45,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362438796] [2021-08-27 16:16:45,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:16:45,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:16:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:45,736 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:16:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:45,819 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:16:45,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:16:45,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1427585826, now seen corresponding path program 1 times [2021-08-27 16:16:45,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:16:45,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313008463] [2021-08-27 16:16:45,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:16:45,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:16:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:45,829 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:16:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:45,841 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:16:45,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:16:45,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1021999224, now seen corresponding path program 1 times [2021-08-27 16:16:45,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:16:45,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342133962] [2021-08-27 16:16:45,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:16:45,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:16:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:45,909 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:16:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:45,986 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:17:24,524 WARN L207 SmtUtils]: Spent 38.26 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-27 16:18:05,478 WARN L207 SmtUtils]: Spent 19.77 s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-27 16:18:05,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:18:05 BoogieIcfgContainer [2021-08-27 16:18:05,623 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:18:05,624 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:18:05,624 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:18:05,624 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:18:05,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:16:45" (3/4) ... [2021-08-27 16:18:05,628 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:18:05,674 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:18:05,674 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:18:05,675 INFO L168 Benchmark]: Toolchain (without parser) took 82128.02 ms. Allocated memory was 52.4 MB in the beginning and 96.5 MB in the end (delta: 44.0 MB). Free memory was 28.9 MB in the beginning and 52.8 MB in the end (delta: -23.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2021-08-27 16:18:05,675 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 52.4 MB. Free memory was 34.7 MB in the beginning and 34.7 MB in the end (delta: 37.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:18:05,676 INFO L168 Benchmark]: CACSL2BoogieTranslator took 426.54 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.7 MB in the beginning and 39.3 MB in the end (delta: -10.5 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:18:05,676 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.77 ms. Allocated memory is still 62.9 MB. Free memory was 39.3 MB in the beginning and 35.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:18:05,677 INFO L168 Benchmark]: Boogie Preprocessor took 29.59 ms. Allocated memory is still 62.9 MB. Free memory was 35.6 MB in the beginning and 33.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:18:05,677 INFO L168 Benchmark]: RCFGBuilder took 1007.83 ms. Allocated memory is still 62.9 MB. Free memory was 33.2 MB in the beginning and 27.4 MB in the end (delta: 5.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2021-08-27 16:18:05,678 INFO L168 Benchmark]: BuchiAutomizer took 80552.17 ms. Allocated memory was 62.9 MB in the beginning and 96.5 MB in the end (delta: 33.6 MB). Free memory was 27.4 MB in the beginning and 54.8 MB in the end (delta: -27.3 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. [2021-08-27 16:18:05,678 INFO L168 Benchmark]: Witness Printer took 50.52 ms. Allocated memory is still 96.5 MB. Free memory was 54.8 MB in the beginning and 52.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:18:05,680 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 52.4 MB. Free memory was 34.7 MB in the beginning and 34.7 MB in the end (delta: 37.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 426.54 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.7 MB in the beginning and 39.3 MB in the end (delta: -10.5 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.77 ms. Allocated memory is still 62.9 MB. Free memory was 39.3 MB in the beginning and 35.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.59 ms. Allocated memory is still 62.9 MB. Free memory was 35.6 MB in the beginning and 33.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1007.83 ms. Allocated memory is still 62.9 MB. Free memory was 33.2 MB in the beginning and 27.4 MB in the end (delta: 5.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 80552.17 ms. Allocated memory was 62.9 MB in the beginning and 96.5 MB in the end (delta: 33.6 MB). Free memory was 27.4 MB in the beginning and 54.8 MB in the end (delta: -27.3 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. * Witness Printer took 50.52 ms. Allocated memory is still 96.5 MB. Free memory was 54.8 MB in the beginning and 52.8 MB in the end (delta: 2.0 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 186 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 80.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 80.2s. 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 23.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 186 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 146 SDtfs, 142 SDslu, 134 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.3ms 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: 910]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=14449} State at position 1 is {NULL=0, NULL=0, retValue_acc=0, NULL=14449, NULL=0, NULL=14454, NULL=0, NULL=0, NULL=0, NULL=14465, NULL=0, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79d02f9d=0, NULL=0, NULL=0, NULL=14450, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72e84fe4=0, NULL=0, tmp___1=0, tmp=0, NULL=0, NULL=0, NULL=14461, tmp___0=0, NULL=14452, cleanupTimeShifts=4, NULL=14469, NULL=14467, NULL=14474, NULL=14464, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a1a7729=85, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@185002d2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7df3efec=0, NULL=0, systemActive=1, waterLevel=1, NULL=14455, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55a23701=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26f188b0=0, NULL=14462, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5bec2f2a=0, NULL=14460, NULL=0, NULL=0, NULL=0, NULL=14476, \result=1, NULL=14470, head=0, pumpRunning=0, NULL=14451, \result=0, NULL=14463, tmp=1, NULL=0, NULL=0, NULL=0, NULL=14473, NULL=14456, NULL=14466, tmp=1, NULL=0, NULL=14471, NULL=0, NULL=14477, retValue_acc=1, tmp___2=85, NULL=0, tmp___0=0, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=14472, NULL=14475, head=0, tmp=0, NULL=0, NULL=0, NULL=14458, NULL=14453, NULL=14459, NULL=0, NULL=14457, NULL=14468, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67cc696f=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L118] int cleanupTimeShifts = 4; [L223] int waterLevel = 1; [L224] int methaneLevelCritical = 0; [L481] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L682] int pumpRunning = 0; [L683] int systemActive = 1; [L196] int retValue_acc ; [L197] int tmp ; [L100] int retValue_acc ; [L103] retValue_acc = 1 [L104] return (retValue_acc); [L203] tmp = valid_product() [L205] COND TRUE \read(tmp) [L901] int splverifierCounter ; [L902] int tmp ; [L903] int tmp___0 ; [L904] int tmp___1 ; [L905] int tmp___2 ; [L908] splverifierCounter = 0 Loop: [L910] COND TRUE 1 [L912] COND TRUE splverifierCounter < 4 [L918] tmp = __VERIFIER_nondet_int() [L920] COND FALSE !(\read(tmp)) [L928] tmp___0 = __VERIFIER_nondet_int() [L930] COND FALSE !(\read(tmp___0)) [L938] tmp___2 = __VERIFIER_nondet_int() [L940] COND TRUE \read(tmp___2) [L895] systemActive = 1 [L689] COND FALSE !(\read(pumpRunning)) [L696] COND TRUE \read(systemActive) [L744] int tmp ; [L747] COND FALSE !(\read(pumpRunning)) [L718] int tmp ; [L721] COND FALSE !(\read(pumpRunning)) [L46] int tmp ; [L47] int tmp___0 ; [L294] int retValue_acc ; [L297] retValue_acc = waterLevel [L298] return (retValue_acc); [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:18:05,725 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...