./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_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 8c57aad23cdcf8081ba5352d473aea77ba42b47e93421a900d6921ce930c9593 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:37:44,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:37:44,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:37:44,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:37:44,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:37:44,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:37:44,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:37:44,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:37:44,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:37:44,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:37:44,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:37:44,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:37:44,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:37:44,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:37:44,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:37:44,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:37:44,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:37:44,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:37:44,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:37:44,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:37:44,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:37:44,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:37:44,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:37:44,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:37:44,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:37:44,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:37:44,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:37:44,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:37:44,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:37:44,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:37:44,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:37:44,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:37:44,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:37:44,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:37:44,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:37:44,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:37:44,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:37:44,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:37:44,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:37:44,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:37:44,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:37:44,309 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-14 23:37:44,326 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:37:44,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:37:44,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:37:44,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:37:44,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:37:44,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:37:44,329 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:37:44,329 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:37:44,329 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:37:44,329 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:37:44,330 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:37:44,330 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:37:44,330 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:37:44,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:37:44,331 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 23:37:44,331 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:37:44,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:37:44,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 23:37:44,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:37:44,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:37:44,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:37:44,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:37:44,332 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 23:37:44,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:37:44,333 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:37:44,333 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:37:44,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:37:44,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:37:44,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:37:44,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:37:44,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:37:44,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:37:44,335 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:37:44,336 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c57aad23cdcf8081ba5352d473aea77ba42b47e93421a900d6921ce930c9593 [2021-12-14 23:37:44,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:37:44,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:37:44,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:37:44,574 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:37:44,575 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:37:44,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c [2021-12-14 23:37:44,631 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/173e149fc/675ce7ce1e3449189bf24e567d7e2a63/FLAG406efb959 [2021-12-14 23:37:45,046 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:37:45,047 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c [2021-12-14 23:37:45,055 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/173e149fc/675ce7ce1e3449189bf24e567d7e2a63/FLAG406efb959 [2021-12-14 23:37:45,434 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/173e149fc/675ce7ce1e3449189bf24e567d7e2a63 [2021-12-14 23:37:45,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:37:45,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:37:45,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:37:45,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:37:45,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:37:45,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:37:45" (1/1) ... [2021-12-14 23:37:45,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c3d4860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:45, skipping insertion in model container [2021-12-14 23:37:45,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:37:45" (1/1) ... [2021-12-14 23:37:45,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:37:45,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:37:45,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c[15113,15126] [2021-12-14 23:37:45,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:37:45,731 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:37:45,778 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c[15113,15126] [2021-12-14 23:37:45,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:37:45,802 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:37:45,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:45 WrapperNode [2021-12-14 23:37:45,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:37:45,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:37:45,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:37:45,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:37:45,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:45" (1/1) ... [2021-12-14 23:37:45,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:45" (1/1) ... [2021-12-14 23:37:45,853 INFO L137 Inliner]: procedures = 55, calls = 153, calls flagged for inlining = 50, calls inlined = 51, statements flattened = 403 [2021-12-14 23:37:45,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:37:45,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:37:45,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:37:45,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:37:45,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:45" (1/1) ... [2021-12-14 23:37:45,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:45" (1/1) ... [2021-12-14 23:37:45,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:45" (1/1) ... [2021-12-14 23:37:45,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:45" (1/1) ... [2021-12-14 23:37:45,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:45" (1/1) ... [2021-12-14 23:37:45,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:45" (1/1) ... [2021-12-14 23:37:45,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:45" (1/1) ... [2021-12-14 23:37:45,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:37:45,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:37:45,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:37:45,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:37:45,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:45" (1/1) ... [2021-12-14 23:37:45,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:37:45,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:37:45,906 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) [2021-12-14 23:37:45,933 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 [2021-12-14 23:37:45,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 23:37:45,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 23:37:45,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:37:45,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:37:46,021 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:37:46,022 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:37:46,240 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:37:46,246 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:37:46,246 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-14 23:37:46,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:37:46 BoogieIcfgContainer [2021-12-14 23:37:46,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:37:46,249 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:37:46,249 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:37:46,251 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:37:46,252 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:37:46,252 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:37:45" (1/3) ... [2021-12-14 23:37:46,253 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2724cc09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:37:46, skipping insertion in model container [2021-12-14 23:37:46,253 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:37:46,253 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:45" (2/3) ... [2021-12-14 23:37:46,253 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2724cc09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:37:46, skipping insertion in model container [2021-12-14 23:37:46,254 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:37:46,254 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:37:46" (3/3) ... [2021-12-14 23:37:46,255 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product20.cil.c [2021-12-14 23:37:46,294 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:37:46,295 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:37:46,295 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:37:46,295 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:37:46,295 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:37:46,295 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:37:46,295 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:37:46,296 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:37:46,325 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 111 states, 110 states have (on average 1.3727272727272728) internal successors, (151), 110 states have internal predecessors, (151), 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) [2021-12-14 23:37:46,359 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-12-14 23:37:46,359 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:37:46,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:37:46,366 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:37:46,366 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:37:46,366 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:37:46,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 111 states, 110 states have (on average 1.3727272727272728) internal successors, (151), 110 states have internal predecessors, (151), 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) [2021-12-14 23:37:46,379 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-12-14 23:37:46,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:37:46,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:37:46,381 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:37:46,381 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:37:46,391 INFO L791 eck$LassoCheckResult]: Stem: 103#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 33#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~5#1, main_~tmp~1#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 6#L117true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 57#L110true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 75#L125true main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 41#L311true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 73#L286true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 95#L59true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 45#L712-2true [2021-12-14 23:37:46,392 INFO L793 eck$LassoCheckResult]: Loop: 45#L712-2true assume !false; 87#L713true assume test_~splverifierCounter~0#1 < 4; 10#L714true test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 50#L722true assume !(0 != test_~tmp~5#1); 112#L722-2true test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 19#L732true assume !(0 != test_~tmp___0~1#1); 100#L732-2true test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 30#L742true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 7#L944true assume { :end_inline_startSystem } true; 43#L750-2true assume { :begin_inline_timeShift } true; 4#L780true assume !(0 != ~pumpRunning~0); 68#L780-2true assume !(0 != ~systemActive~0); 51#L787-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 108#L179true __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 55#L70true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 24#L70-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 74#L797true assume { :end_inline_timeShift } true; 45#L712-2true [2021-12-14 23:37:46,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:37:46,406 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-14 23:37:46,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:37:46,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85984607] [2021-12-14 23:37:46,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:37:46,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:37:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:37:46,559 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:37:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:37:46,609 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:37:46,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:37:46,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1420189353, now seen corresponding path program 1 times [2021-12-14 23:37:46,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:37:46,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256715341] [2021-12-14 23:37:46,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:37:46,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:37:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:37:46,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:37:46,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:37:46,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256715341] [2021-12-14 23:37:46,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256715341] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:37:46,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:37:46,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 23:37:46,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030194347] [2021-12-14 23:37:46,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:37:46,712 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-14 23:37:46,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:37:46,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 23:37:46,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 23:37:46,744 INFO L87 Difference]: Start difference. First operand has 111 states, 110 states have (on average 1.3727272727272728) internal successors, (151), 110 states have internal predecessors, (151), 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 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-12-14 23:37:46,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:37:46,817 INFO L93 Difference]: Finished difference Result 206 states and 268 transitions. [2021-12-14 23:37:46,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 23:37:46,823 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 206 states and 268 transitions. [2021-12-14 23:37:46,825 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 132 [2021-12-14 23:37:46,831 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 206 states to 186 states and 247 transitions. [2021-12-14 23:37:46,833 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 186 [2021-12-14 23:37:46,834 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 186 [2021-12-14 23:37:46,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 186 states and 247 transitions. [2021-12-14 23:37:46,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:37:46,837 INFO L681 BuchiCegarLoop]: Abstraction has 186 states and 247 transitions. [2021-12-14 23:37:46,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states and 247 transitions. [2021-12-14 23:37:46,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 183. [2021-12-14 23:37:46,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 183 states have (on average 1.3278688524590163) internal successors, (243), 182 states have internal predecessors, (243), 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) [2021-12-14 23:37:46,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 243 transitions. [2021-12-14 23:37:46,877 INFO L704 BuchiCegarLoop]: Abstraction has 183 states and 243 transitions. [2021-12-14 23:37:46,877 INFO L587 BuchiCegarLoop]: Abstraction has 183 states and 243 transitions. [2021-12-14 23:37:46,877 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:37:46,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 243 transitions. [2021-12-14 23:37:46,881 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 129 [2021-12-14 23:37:46,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:37:46,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:37:46,882 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:37:46,882 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:37:46,883 INFO L791 eck$LassoCheckResult]: Stem: 437#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 379#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~5#1, main_~tmp~1#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 332#L117 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 333#L110 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 403#L125 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 384#L311 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 385#L286 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 418#L59 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 434#L712-2 [2021-12-14 23:37:46,883 INFO L793 eck$LassoCheckResult]: Loop: 434#L712-2 assume !false; 428#L713 assume test_~splverifierCounter~0#1 < 4; 429#L714 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 470#L722 assume !(0 != test_~tmp~5#1); 468#L722-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 466#L732 assume !(0 != test_~tmp___0~1#1); 464#L732-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 463#L742 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 433#L750 assume !(0 != test_~tmp___1~0#1); 335#L750-2 assume { :begin_inline_timeShift } true; 457#L780 assume !(0 != ~pumpRunning~0); 414#L780-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 411#L812 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 412#L804-1 assume { :end_inline_processEnvironment__wrappee__base } true; 435#L812-1 assume { :end_inline_processEnvironment } true; 436#L787-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 452#L179 __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 450#L70 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 447#L70-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 446#L797 assume { :end_inline_timeShift } true; 434#L712-2 [2021-12-14 23:37:46,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:37:46,884 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-14 23:37:46,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:37:46,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083437699] [2021-12-14 23:37:46,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:37:46,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:37:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:37:46,901 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:37:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:37:46,916 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:37:46,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:37:46,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1044716843, now seen corresponding path program 1 times [2021-12-14 23:37:46,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:37:46,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868093464] [2021-12-14 23:37:46,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:37:46,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:37:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:37:46,925 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:37:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:37:46,932 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:37:46,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:37:46,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1877724780, now seen corresponding path program 1 times [2021-12-14 23:37:46,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:37:46,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915704102] [2021-12-14 23:37:46,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:37:46,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:37:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:37:46,957 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:37:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:37:46,996 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:37:50,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:37:50 BoogieIcfgContainer [2021-12-14 23:37:50,031 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:37:50,031 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:37:50,031 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:37:50,032 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:37:50,032 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:37:46" (3/4) ... [2021-12-14 23:37:50,034 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-14 23:37:50,080 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 23:37:50,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:37:50,081 INFO L158 Benchmark]: Toolchain (without parser) took 4643.60ms. Allocated memory was 90.2MB in the beginning and 148.9MB in the end (delta: 58.7MB). Free memory was 61.0MB in the beginning and 47.2MB in the end (delta: 13.9MB). Peak memory consumption was 72.8MB. Max. memory is 16.1GB. [2021-12-14 23:37:50,081 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 90.2MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:37:50,082 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.52ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 60.8MB in the beginning and 87.5MB in the end (delta: -26.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-14 23:37:50,082 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.40ms. Allocated memory is still 119.5MB. Free memory was 87.5MB in the beginning and 84.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:37:50,083 INFO L158 Benchmark]: Boogie Preprocessor took 25.28ms. Allocated memory is still 119.5MB. Free memory was 84.6MB in the beginning and 82.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:37:50,084 INFO L158 Benchmark]: RCFGBuilder took 368.25ms. Allocated memory is still 119.5MB. Free memory was 82.9MB in the beginning and 65.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-14 23:37:50,084 INFO L158 Benchmark]: BuchiAutomizer took 3782.04ms. Allocated memory was 119.5MB in the beginning and 148.9MB in the end (delta: 29.4MB). Free memory was 65.6MB in the beginning and 49.3MB in the end (delta: 16.4MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2021-12-14 23:37:50,085 INFO L158 Benchmark]: Witness Printer took 48.87ms. Allocated memory is still 148.9MB. Free memory was 49.3MB in the beginning and 47.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:37:50,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 90.2MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.52ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 60.8MB in the beginning and 87.5MB in the end (delta: -26.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.40ms. Allocated memory is still 119.5MB. Free memory was 87.5MB in the beginning and 84.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.28ms. Allocated memory is still 119.5MB. Free memory was 84.6MB in the beginning and 82.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 368.25ms. Allocated memory is still 119.5MB. Free memory was 82.9MB in the beginning and 65.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3782.04ms. Allocated memory was 119.5MB in the beginning and 148.9MB in the end (delta: 29.4MB). Free memory was 65.6MB in the beginning and 49.3MB in the end (delta: 16.4MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. * Witness Printer took 48.87ms. Allocated memory is still 148.9MB. Free memory was 49.3MB in the beginning and 47.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 183 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. 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 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 183 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 131 mSDsluCounter, 261 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 123 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 138 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown 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: 712]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, methaneLevelCritical=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b6a2cb0=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@418a0d2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1885bd7f=0, \result=1, retValue_acc=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24e976b0=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50f13ba0=0, tmp___2=0, methAndRunningLastTime=0, cleanupTimeShifts=4, \result=0, tmp=1, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38783b62=0, tmp=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@230209b9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7df3e907=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 712]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int methAndRunningLastTime ; [L136] int waterLevel = 1; [L137] int methaneLevelCritical = 0; [L225] int cleanupTimeShifts = 4; [L494] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L773] int pumpRunning = 0; [L774] int systemActive = 1; [L302] int retValue_acc ; [L303] int tmp ; [L307] FCALL select_helpers() [L308] FCALL select_features() [L309] CALL, EXPR valid_product() [L121] int retValue_acc ; [L124] retValue_acc = 1 [L125] return (retValue_acc); [L309] RET, EXPR valid_product() [L309] tmp = valid_product() [L311] COND TRUE \read(tmp) [L313] FCALL setup() [L314] CALL runTest() [L295] CALL __utac_acc__Specification2_spec__1() [L58] methAndRunningLastTime = 0 [L295] RET __utac_acc__Specification2_spec__1() [L296] CALL test() [L703] int splverifierCounter ; [L704] int tmp ; [L705] int tmp___0 ; [L706] int tmp___1 ; [L707] int tmp___2 ; [L710] splverifierCounter = 0 Loop: [L712] COND TRUE 1 [L714] COND TRUE splverifierCounter < 4 [L720] tmp = __VERIFIER_nondet_int() [L722] COND FALSE !(\read(tmp)) [L730] tmp___0 = __VERIFIER_nondet_int() [L732] COND FALSE !(\read(tmp___0)) [L740] tmp___2 = __VERIFIER_nondet_int() [L742] COND FALSE !(\read(tmp___2)) [L748] tmp___1 = __VERIFIER_nondet_int() [L750] COND FALSE !(\read(tmp___1)) [L759] CALL timeShift() [L780] COND FALSE !(\read(pumpRunning)) [L787] COND TRUE \read(systemActive) [L789] CALL processEnvironment() [L809] int tmp ; [L812] COND FALSE !(\read(pumpRunning)) [L827] FCALL processEnvironment__wrappee__base() [L789] RET processEnvironment() [L795] CALL __utac_acc__Specification2_spec__2() [L63] int tmp ; [L64] int tmp___0 ; [L68] CALL, EXPR isMethaneLevelCritical() [L175] int retValue_acc ; [L178] retValue_acc = methaneLevelCritical [L179] return (retValue_acc); [L68] RET, EXPR isMethaneLevelCritical() [L68] tmp = isMethaneLevelCritical() [L70] COND FALSE !(\read(tmp)) [L86] methAndRunningLastTime = 0 [L795] RET __utac_acc__Specification2_spec__2() [L759] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-14 23:37:50,139 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)