./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product10.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 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_spec3_product10.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 00ac86131dc0e0af1cc82efd839ee9faae2b8444f182d9d05eed34c82369a7f5 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:34:08,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:34:08,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:34:08,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:34:08,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:34:08,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:34:08,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:34:08,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:34:08,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:34:08,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:34:08,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:34:08,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:34:08,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:34:08,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:34:08,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:34:08,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:34:08,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:34:08,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:34:08,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:34:08,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:34:08,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:34:08,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:34:08,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:34:08,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:34:08,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:34:08,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:34:08,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:34:08,315 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:34:08,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:34:08,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:34:08,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:34:08,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:34:08,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:34:08,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:34:08,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:34:08,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:34:08,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:34:08,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:34:08,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:34:08,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:34:08,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:34:08,324 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-21 22:34:08,345 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:34:08,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:34:08,346 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:34:08,346 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:34:08,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:34:08,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:34:08,347 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:34:08,347 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:34:08,347 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:34:08,347 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:34:08,347 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:34:08,348 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:34:08,348 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:34:08,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:34:08,348 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 22:34:08,348 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:34:08,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:34:08,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 22:34:08,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:34:08,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:34:08,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:34:08,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:34:08,349 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 22:34:08,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:34:08,350 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:34:08,350 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:34:08,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:34:08,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:34:08,350 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:34:08,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:34:08,351 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:34:08,351 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:34:08,351 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:34:08,351 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00ac86131dc0e0af1cc82efd839ee9faae2b8444f182d9d05eed34c82369a7f5 [2021-12-21 22:34:08,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:34:08,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:34:08,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:34:08,550 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:34:08,551 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:34:08,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product10.cil.c [2021-12-21 22:34:08,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4ad0ee66/a29e856cd6b84d7ab4e3843b2389bd24/FLAGbb5b03098 [2021-12-21 22:34:09,030 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:34:09,031 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product10.cil.c [2021-12-21 22:34:09,044 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4ad0ee66/a29e856cd6b84d7ab4e3843b2389bd24/FLAGbb5b03098 [2021-12-21 22:34:09,054 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4ad0ee66/a29e856cd6b84d7ab4e3843b2389bd24 [2021-12-21 22:34:09,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:34:09,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:34:09,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:34:09,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:34:09,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:34:09,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:34:09" (1/1) ... [2021-12-21 22:34:09,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d0fea45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:09, skipping insertion in model container [2021-12-21 22:34:09,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:34:09" (1/1) ... [2021-12-21 22:34:09,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:34:09,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:34:09,241 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_spec3_product10.cil.c[3343,3356] [2021-12-21 22:34:09,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:34:09,313 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:34:09,325 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_spec3_product10.cil.c[3343,3356] [2021-12-21 22:34:09,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:34:09,377 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:34:09,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:09 WrapperNode [2021-12-21 22:34:09,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:34:09,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:34:09,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:34:09,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:34:09,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:09" (1/1) ... [2021-12-21 22:34:09,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:09" (1/1) ... [2021-12-21 22:34:09,438 INFO L137 Inliner]: procedures = 51, calls = 148, calls flagged for inlining = 45, calls inlined = 36, statements flattened = 314 [2021-12-21 22:34:09,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:34:09,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:34:09,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:34:09,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:34:09,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:09" (1/1) ... [2021-12-21 22:34:09,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:09" (1/1) ... [2021-12-21 22:34:09,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:09" (1/1) ... [2021-12-21 22:34:09,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:09" (1/1) ... [2021-12-21 22:34:09,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:09" (1/1) ... [2021-12-21 22:34:09,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:09" (1/1) ... [2021-12-21 22:34:09,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:09" (1/1) ... [2021-12-21 22:34:09,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:34:09,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:34:09,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:34:09,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:34:09,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:09" (1/1) ... [2021-12-21 22:34:09,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:34:09,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:34:09,492 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) [2021-12-21 22:34:09,503 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 [2021-12-21 22:34:09,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 22:34:09,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 22:34:09,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:34:09,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:34:09,599 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:34:09,601 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:34:09,890 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:34:09,895 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:34:09,895 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 22:34:09,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:34:09 BoogieIcfgContainer [2021-12-21 22:34:09,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:34:09,897 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:34:09,897 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:34:09,903 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:34:09,904 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:34:09,904 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:34:09" (1/3) ... [2021-12-21 22:34:09,905 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47dc0667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:34:09, skipping insertion in model container [2021-12-21 22:34:09,905 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:34:09,906 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:09" (2/3) ... [2021-12-21 22:34:09,906 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47dc0667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:34:09, skipping insertion in model container [2021-12-21 22:34:09,906 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:34:09,906 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:34:09" (3/3) ... [2021-12-21 22:34:09,907 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product10.cil.c [2021-12-21 22:34:09,952 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:34:09,953 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:34:09,953 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:34:09,953 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:34:09,953 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:34:09,953 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:34:09,953 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:34:09,953 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:34:09,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 82 states, 81 states have (on average 1.382716049382716) internal successors, (112), 81 states have internal predecessors, (112), 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) [2021-12-21 22:34:09,993 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-12-21 22:34:09,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:34:09,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:34:09,998 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:09,998 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:09,998 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:34:10,000 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 82 states, 81 states have (on average 1.382716049382716) internal successors, (112), 81 states have internal predecessors, (112), 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) [2021-12-21 22:34:10,008 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-12-21 22:34:10,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:34:10,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:34:10,010 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:10,010 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:10,018 INFO L791 eck$LassoCheckResult]: Stem: 60#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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 48#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 74#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 69#L68true 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; 35#L83true main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 53#L873true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 62#L850true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 27#L562-2true [2021-12-21 22:34:10,019 INFO L793 eck$LassoCheckResult]: Loop: 27#L562-2true assume !false; 81#L563true assume test_~splverifierCounter~0#1 < 4; 22#L564true test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 45#L572true assume !(0 != test_~tmp~3#1); 29#L572-2true test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 75#L582true assume !(0 != test_~tmp___0~0#1); 37#L582-2true test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 25#L592true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 42#L600true assume 0 != test_~tmp___1~0#1; 50#L600-2true assume { :begin_inline_timeShift } true; 8#L631true assume !(0 != ~pumpRunning~0); 30#L631-2true assume !(0 != ~systemActive~0); 57#L638-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret47#1, __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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; 77#L137true __utac_acc__Specification3_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret47#1;havoc __utac_acc__Specification3_spec__1_#t~ret47#1; 10#L766true assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 24#L772-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 83#L648true assume { :end_inline_timeShift } true; 27#L562-2true [2021-12-21 22:34:10,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:10,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-21 22:34:10,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:10,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494881634] [2021-12-21 22:34:10,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:10,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:10,129 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:10,173 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:10,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:10,175 INFO L85 PathProgramCache]: Analyzing trace with hash -944096044, now seen corresponding path program 1 times [2021-12-21 22:34:10,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:10,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374193833] [2021-12-21 22:34:10,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:10,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:10,182 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:10,188 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:10,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:10,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1875777648, now seen corresponding path program 1 times [2021-12-21 22:34:10,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:10,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329279541] [2021-12-21 22:34:10,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:10,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:34:10,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:34:10,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:34:10,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329279541] [2021-12-21 22:34:10,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329279541] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:34:10,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:34:10,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 22:34:10,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855857453] [2021-12-21 22:34:10,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:34:10,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:34:10,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 22:34:10,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-21 22:34:10,469 INFO L87 Difference]: Start difference. First operand has 82 states, 81 states have (on average 1.382716049382716) internal successors, (112), 81 states have internal predecessors, (112), 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 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-12-21 22:34:10,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:34:10,520 INFO L93 Difference]: Finished difference Result 79 states and 98 transitions. [2021-12-21 22:34:10,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 22:34:10,536 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 79 states and 98 transitions. [2021-12-21 22:34:10,538 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-12-21 22:34:10,545 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 79 states to 69 states and 88 transitions. [2021-12-21 22:34:10,546 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2021-12-21 22:34:10,547 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 69 [2021-12-21 22:34:10,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 88 transitions. [2021-12-21 22:34:10,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:34:10,548 INFO L681 BuchiCegarLoop]: Abstraction has 69 states and 88 transitions. [2021-12-21 22:34:10,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 88 transitions. [2021-12-21 22:34:10,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-12-21 22:34:10,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 68 states have internal predecessors, (88), 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) [2021-12-21 22:34:10,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2021-12-21 22:34:10,575 INFO L704 BuchiCegarLoop]: Abstraction has 69 states and 88 transitions. [2021-12-21 22:34:10,575 INFO L587 BuchiCegarLoop]: Abstraction has 69 states and 88 transitions. [2021-12-21 22:34:10,575 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:34:10,575 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 88 transitions. [2021-12-21 22:34:10,576 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-12-21 22:34:10,576 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:34:10,576 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:34:10,577 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:10,577 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:10,577 INFO L791 eck$LassoCheckResult]: Stem: 243#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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 237#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 238#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 247#L68 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; 225#L83 main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 226#L873 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 239#L850 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 218#L562-2 [2021-12-21 22:34:10,577 INFO L793 eck$LassoCheckResult]: Loop: 218#L562-2 assume !false; 219#L563 assume test_~splverifierCounter~0#1 < 4; 207#L564 test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 208#L572 assume !(0 != test_~tmp~3#1); 221#L572-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 222#L582 assume !(0 != test_~tmp___0~0#1); 227#L582-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 213#L592 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 214#L600 assume 0 != test_~tmp___1~0#1; 230#L600-2 assume { :begin_inline_timeShift } true; 189#L631 assume !(0 != ~pumpRunning~0); 190#L631-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 220#L655 assume { :end_inline_processEnvironment } true; 229#L638-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret47#1, __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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; 242#L137 __utac_acc__Specification3_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret47#1;havoc __utac_acc__Specification3_spec__1_#t~ret47#1; 193#L766 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 185#L772-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 211#L648 assume { :end_inline_timeShift } true; 218#L562-2 [2021-12-21 22:34:10,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:10,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-21 22:34:10,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:10,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249955156] [2021-12-21 22:34:10,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:10,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:10,606 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:10,626 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:10,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:10,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1426270263, now seen corresponding path program 1 times [2021-12-21 22:34:10,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:10,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665016701] [2021-12-21 22:34:10,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:10,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:10,650 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:10,660 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:10,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:10,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1686055685, now seen corresponding path program 1 times [2021-12-21 22:34:10,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:10,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835492635] [2021-12-21 22:34:10,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:10,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:34:10,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:34:10,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:34:10,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835492635] [2021-12-21 22:34:10,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835492635] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:34:10,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:34:10,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 22:34:10,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425730053] [2021-12-21 22:34:10,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:34:10,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:34:10,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 22:34:10,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 22:34:10,793 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. cyclomatic complexity: 21 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-12-21 22:34:10,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:34:10,860 INFO L93 Difference]: Finished difference Result 226 states and 291 transitions. [2021-12-21 22:34:10,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 22:34:10,861 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 226 states and 291 transitions. [2021-12-21 22:34:10,863 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 164 [2021-12-21 22:34:10,864 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 226 states to 226 states and 291 transitions. [2021-12-21 22:34:10,865 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 226 [2021-12-21 22:34:10,865 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 226 [2021-12-21 22:34:10,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 226 states and 291 transitions. [2021-12-21 22:34:10,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:34:10,866 INFO L681 BuchiCegarLoop]: Abstraction has 226 states and 291 transitions. [2021-12-21 22:34:10,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states and 291 transitions. [2021-12-21 22:34:10,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 131. [2021-12-21 22:34:10,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 131 states have (on average 1.2595419847328244) internal successors, (165), 130 states have internal predecessors, (165), 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) [2021-12-21 22:34:10,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 165 transitions. [2021-12-21 22:34:10,872 INFO L704 BuchiCegarLoop]: Abstraction has 131 states and 165 transitions. [2021-12-21 22:34:10,873 INFO L587 BuchiCegarLoop]: Abstraction has 131 states and 165 transitions. [2021-12-21 22:34:10,873 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 22:34:10,873 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states and 165 transitions. [2021-12-21 22:34:10,873 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2021-12-21 22:34:10,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:34:10,874 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:34:10,874 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:10,874 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] [2021-12-21 22:34:10,874 INFO L791 eck$LassoCheckResult]: Stem: 564#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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 555#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 556#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 573#L68 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; 541#L83 main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 542#L873 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 557#L850 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 566#L562-2 [2021-12-21 22:34:10,875 INFO L793 eck$LassoCheckResult]: Loop: 566#L562-2 assume !false; 608#L563 assume test_~splverifierCounter~0#1 < 4; 609#L564 test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 621#L572 assume !(0 != test_~tmp~3#1); 619#L572-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 618#L582 assume !(0 != test_~tmp___0~0#1); 616#L582-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 615#L592 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 613#L753 assume { :end_inline_startSystem } true; 612#L600-2 assume { :begin_inline_timeShift } true; 587#L631 assume !(0 != ~pumpRunning~0); 537#L631-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 538#L655 assume { :end_inline_processEnvironment } true; 546#L638-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret47#1, __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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; 561#L137 __utac_acc__Specification3_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret47#1;havoc __utac_acc__Specification3_spec__1_#t~ret47#1; 504#L766 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~5#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; 505#L169 __utac_acc__Specification3_spec__1_#t~ret48#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~1#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 574#L772 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~1#1); 611#L772-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 610#L648 assume { :end_inline_timeShift } true; 566#L562-2 [2021-12-21 22:34:10,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:10,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-21 22:34:10,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:10,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830089233] [2021-12-21 22:34:10,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:10,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:10,883 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:10,890 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:10,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:10,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1080604203, now seen corresponding path program 1 times [2021-12-21 22:34:10,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:10,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960283557] [2021-12-21 22:34:10,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:10,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:10,895 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:10,899 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:10,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:10,900 INFO L85 PathProgramCache]: Analyzing trace with hash -567393809, now seen corresponding path program 1 times [2021-12-21 22:34:10,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:10,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864564634] [2021-12-21 22:34:10,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:10,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:10,911 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:10,921 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:13,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:34:13 BoogieIcfgContainer [2021-12-21 22:34:13,159 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:34:13,159 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:34:13,159 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:34:13,159 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:34:13,160 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:34:09" (3/4) ... [2021-12-21 22:34:13,161 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-21 22:34:13,189 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 22:34:13,189 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:34:13,190 INFO L158 Benchmark]: Toolchain (without parser) took 4132.68ms. Allocated memory was 98.6MB in the beginning and 161.5MB in the end (delta: 62.9MB). Free memory was 70.4MB in the beginning and 86.4MB in the end (delta: -16.0MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. [2021-12-21 22:34:13,190 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory was 55.4MB in the beginning and 55.3MB in the end (delta: 54.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:34:13,191 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.05ms. Allocated memory is still 98.6MB. Free memory was 70.2MB in the beginning and 65.8MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 22:34:13,191 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.27ms. Allocated memory is still 98.6MB. Free memory was 65.8MB in the beginning and 63.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:34:13,191 INFO L158 Benchmark]: Boogie Preprocessor took 16.48ms. Allocated memory is still 98.6MB. Free memory was 63.2MB in the beginning and 61.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:34:13,194 INFO L158 Benchmark]: RCFGBuilder took 440.32ms. Allocated memory was 98.6MB in the beginning and 134.2MB in the end (delta: 35.7MB). Free memory was 61.7MB in the beginning and 108.5MB in the end (delta: -46.9MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2021-12-21 22:34:13,194 INFO L158 Benchmark]: BuchiAutomizer took 3261.39ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 108.4MB in the beginning and 88.5MB in the end (delta: 19.9MB). Peak memory consumption was 84.2MB. Max. memory is 16.1GB. [2021-12-21 22:34:13,194 INFO L158 Benchmark]: Witness Printer took 30.36ms. Allocated memory is still 161.5MB. Free memory was 88.5MB in the beginning and 86.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:34:13,196 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory was 55.4MB in the beginning and 55.3MB in the end (delta: 54.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.05ms. Allocated memory is still 98.6MB. Free memory was 70.2MB in the beginning and 65.8MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.27ms. Allocated memory is still 98.6MB. Free memory was 65.8MB in the beginning and 63.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.48ms. Allocated memory is still 98.6MB. Free memory was 63.2MB in the beginning and 61.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 440.32ms. Allocated memory was 98.6MB in the beginning and 134.2MB in the end (delta: 35.7MB). Free memory was 61.7MB in the beginning and 108.5MB in the end (delta: -46.9MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3261.39ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 108.4MB in the beginning and 88.5MB in the end (delta: 19.9MB). Peak memory consumption was 84.2MB. Max. memory is 16.1GB. * Witness Printer took 30.36ms. Allocated memory is still 161.5MB. Free memory was 88.5MB in the beginning and 86.4MB 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 131 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 95 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 131 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 651 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 651 mSDsluCounter, 568 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 357 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 211 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 562]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b671bae=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@228041d0=0, tmp___0=0, NULL=1, methaneLevelCritical=0, tmp___0=1, \result=0, retValue_acc=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1128b886=0, \result=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5237a429=29, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a6ff76b=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34346ec6=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3734ef8e=0, tmp=1, cleanupTimeShifts=4, tmp=0, \result=0, head=0, retValue_acc=1, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ad2b159=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 562]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L352] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L623] int pumpRunning = 0; [L624] int systemActive = 1; [L791] int cleanupTimeShifts = 4; [L864] int retValue_acc ; [L865] int tmp ; [L869] FCALL select_helpers() [L870] FCALL select_features() [L871] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L871] RET, EXPR valid_product() [L871] tmp = valid_product() [L873] COND TRUE \read(tmp) [L875] FCALL setup() [L876] CALL runTest() [L858] CALL test() [L553] int splverifierCounter ; [L554] int tmp ; [L555] int tmp___0 ; [L556] int tmp___1 ; [L557] int tmp___2 ; [L560] splverifierCounter = 0 Loop: [L562] COND TRUE 1 [L564] COND TRUE splverifierCounter < 4 [L570] tmp = __VERIFIER_nondet_int() [L572] COND FALSE !(\read(tmp)) [L580] tmp___0 = __VERIFIER_nondet_int() [L582] COND FALSE !(\read(tmp___0)) [L590] tmp___2 = __VERIFIER_nondet_int() [L592] COND TRUE \read(tmp___2) [L594] CALL startSystem() [L752] systemActive = 1 [L594] RET startSystem() [L607] CALL timeShift() [L631] COND FALSE !(\read(pumpRunning)) [L638] COND TRUE \read(systemActive) [L640] FCALL processEnvironment() [L646] CALL __utac_acc__Specification3_spec__1() [L758] int tmp ; [L759] int tmp___0 ; [L760] int tmp___1 ; [L764] CALL, EXPR isMethaneLevelCritical() [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] return (retValue_acc); [L764] RET, EXPR isMethaneLevelCritical() [L764] tmp = isMethaneLevelCritical() [L766] COND FALSE !(\read(tmp)) [L770] CALL, EXPR getWaterLevel() [L165] int retValue_acc ; [L168] retValue_acc = waterLevel [L169] return (retValue_acc); [L770] RET, EXPR getWaterLevel() [L770] tmp___0 = getWaterLevel() [L772] COND FALSE !(tmp___0 == 2) [L646] RET __utac_acc__Specification3_spec__1() [L607] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-21 22:34:13,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- 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)