./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 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_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 43c19ce3e2b7787ecf8dd3f4cbbbb7bba1e2bcc266043b083140097432ac956b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:40:32,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:40:32,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:40:32,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:40:32,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:40:32,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:40:32,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:40:32,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:40:32,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:40:32,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:40:32,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:40:32,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:40:32,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:40:32,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:40:32,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:40:32,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:40:32,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:40:32,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:40:32,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:40:32,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:40:32,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:40:32,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:40:32,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:40:32,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:40:32,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:40:32,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:40:32,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:40:32,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:40:32,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:40:32,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:40:32,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:40:32,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:40:32,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:40:32,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:40:32,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:40:32,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:40:32,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:40:32,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:40:32,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:40:32,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:40:32,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:40:32,379 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:40:32,395 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:40:32,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:40:32,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:40:32,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:40:32,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:40:32,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:40:32,402 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:40:32,402 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:40:32,402 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:40:32,402 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:40:32,403 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:40:32,403 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:40:32,403 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:40:32,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:40:32,404 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:40:32,404 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:40:32,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:40:32,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:40:32,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:40:32,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:40:32,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:40:32,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:40:32,405 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:40:32,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:40:32,405 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:40:32,405 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:40:32,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:40:32,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:40:32,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:40:32,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:40:32,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:40:32,407 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:40:32,408 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c19ce3e2b7787ecf8dd3f4cbbbb7bba1e2bcc266043b083140097432ac956b [2021-12-28 09:40:32,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:40:32,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:40:32,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:40:32,722 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:40:32,723 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:40:32,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2021-12-28 09:40:32,772 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffb712e93/b971a9047f604d07afd369b970513e09/FLAG2c54fd3ae [2021-12-28 09:40:33,188 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:40:33,188 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2021-12-28 09:40:33,209 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffb712e93/b971a9047f604d07afd369b970513e09/FLAG2c54fd3ae [2021-12-28 09:40:33,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffb712e93/b971a9047f604d07afd369b970513e09 [2021-12-28 09:40:33,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:40:33,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:40:33,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:40:33,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:40:33,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:40:33,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:40:33" (1/1) ... [2021-12-28 09:40:33,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be9d407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:33, skipping insertion in model container [2021-12-28 09:40:33,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:40:33" (1/1) ... [2021-12-28 09:40:33,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:40:33,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:40:33,524 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_product20.cil.c[17955,17968] [2021-12-28 09:40:33,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:40:33,531 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:40:33,598 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_product20.cil.c[17955,17968] [2021-12-28 09:40:33,598 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:40:33,611 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:40:33,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:33 WrapperNode [2021-12-28 09:40:33,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:40:33,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:40:33,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:40:33,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:40:33,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:33" (1/1) ... [2021-12-28 09:40:33,628 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:33" (1/1) ... [2021-12-28 09:40:33,656 INFO L137 Inliner]: procedures = 54, calls = 153, calls flagged for inlining = 50, calls inlined = 53, statements flattened = 420 [2021-12-28 09:40:33,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:40:33,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:40:33,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:40:33,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:40:33,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:33" (1/1) ... [2021-12-28 09:40:33,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:33" (1/1) ... [2021-12-28 09:40:33,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:33" (1/1) ... [2021-12-28 09:40:33,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:33" (1/1) ... [2021-12-28 09:40:33,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:33" (1/1) ... [2021-12-28 09:40:33,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:33" (1/1) ... [2021-12-28 09:40:33,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:33" (1/1) ... [2021-12-28 09:40:33,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:40:33,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:40:33,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:40:33,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:40:33,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:33" (1/1) ... [2021-12-28 09:40:33,684 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:40:33,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:40:33,704 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) [2021-12-28 09:40:33,720 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 [2021-12-28 09:40:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:40:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:40:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:40:33,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:40:33,772 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:40:33,773 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:40:33,985 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:40:33,990 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:40:33,990 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 09:40:33,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:33 BoogieIcfgContainer [2021-12-28 09:40:33,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:40:33,993 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:40:33,993 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:40:33,995 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:40:33,995 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:33,995 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:40:33" (1/3) ... [2021-12-28 09:40:33,996 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f8d5d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:40:33, skipping insertion in model container [2021-12-28 09:40:33,996 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:33,996 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:33" (2/3) ... [2021-12-28 09:40:33,997 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f8d5d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:40:33, skipping insertion in model container [2021-12-28 09:40:33,997 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:33,997 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:33" (3/3) ... [2021-12-28 09:40:33,998 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2021-12-28 09:40:34,025 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:40:34,025 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:40:34,025 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:40:34,025 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:40:34,025 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:40:34,025 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:40:34,026 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:40:34,026 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:40:34,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 113 states, 112 states have (on average 1.3660714285714286) internal successors, (153), 112 states have internal predecessors, (153), 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) [2021-12-28 09:40:34,068 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-12-28 09:40:34,068 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:34,068 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:34,072 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:34,073 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:34,073 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:40:34,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 113 states, 112 states have (on average 1.3660714285714286) internal successors, (153), 112 states have internal predecessors, (153), 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) [2021-12-28 09:40:34,079 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-12-28 09:40:34,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:34,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:34,083 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:34,084 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:34,090 INFO L791 eck$LassoCheckResult]: Stem: 94#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 33#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~5#1, main_~tmp~3#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 47#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 105#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; 17#L83true main_#t~ret28#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret28#1;havoc main_#t~ret28#1; 68#L541true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 72#L517true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 80#L785-2true [2021-12-28 09:40:34,093 INFO L793 eck$LassoCheckResult]: Loop: 80#L785-2true assume !false; 12#L786true assume test_~splverifierCounter~0#1 < 4; 95#L787true test_~tmp~7#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 5#L795true assume !(0 != test_~tmp~7#1); 22#L795-2true test_~tmp___0~2#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 69#L805true assume !(0 != test_~tmp___0~2#1); 97#L805-2true test_~tmp___2~0#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 63#L815true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 4#L823true assume !(0 != test_~tmp___1~1#1); 56#L823-2true assume { :begin_inline_timeShift } true; 28#L607true assume !(0 != ~pumpRunning~0); 46#L607-2true assume !(0 != ~systemActive~0); 75#L614-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 102#L887true __utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; 115#L568true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 108#L574-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 34#L624true assume { :end_inline_timeShift } true; 80#L785-2true [2021-12-28 09:40:34,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:34,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-28 09:40:34,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:34,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343751037] [2021-12-28 09:40:34,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:34,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:34,216 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:34,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:34,252 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:34,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:34,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1380821057, now seen corresponding path program 1 times [2021-12-28 09:40:34,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:34,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613736921] [2021-12-28 09:40:34,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:34,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:34,272 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:34,289 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:34,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:34,292 INFO L85 PathProgramCache]: Analyzing trace with hash 449139453, now seen corresponding path program 1 times [2021-12-28 09:40:34,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:34,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497512943] [2021-12-28 09:40:34,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:34,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:34,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:40:34,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:34,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497512943] [2021-12-28 09:40:34,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497512943] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:34,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:34,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:40:34,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337326212] [2021-12-28 09:40:34,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:34,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:34,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 09:40:34,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 09:40:34,591 INFO L87 Difference]: Start difference. First operand has 113 states, 112 states have (on average 1.3660714285714286) internal successors, (153), 112 states have internal predecessors, (153), 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) [2021-12-28 09:40:34,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:34,696 INFO L93 Difference]: Finished difference Result 384 states and 494 transitions. [2021-12-28 09:40:34,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 09:40:34,701 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 384 states and 494 transitions. [2021-12-28 09:40:34,709 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 248 [2021-12-28 09:40:34,714 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 384 states to 344 states and 454 transitions. [2021-12-28 09:40:34,714 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 344 [2021-12-28 09:40:34,715 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 344 [2021-12-28 09:40:34,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 344 states and 454 transitions. [2021-12-28 09:40:34,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:34,717 INFO L681 BuchiCegarLoop]: Abstraction has 344 states and 454 transitions. [2021-12-28 09:40:34,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states and 454 transitions. [2021-12-28 09:40:34,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 158. [2021-12-28 09:40:34,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 158 states have (on average 1.3227848101265822) internal successors, (209), 157 states have internal predecessors, (209), 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) [2021-12-28 09:40:34,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 209 transitions. [2021-12-28 09:40:34,756 INFO L704 BuchiCegarLoop]: Abstraction has 158 states and 209 transitions. [2021-12-28 09:40:34,756 INFO L587 BuchiCegarLoop]: Abstraction has 158 states and 209 transitions. [2021-12-28 09:40:34,756 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:40:34,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 158 states and 209 transitions. [2021-12-28 09:40:34,758 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 113 [2021-12-28 09:40:34,758 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:34,758 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:34,759 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:34,759 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] [2021-12-28 09:40:34,759 INFO L791 eck$LassoCheckResult]: Stem: 612#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 568#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~5#1, main_~tmp~3#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 569#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 583#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; 540#L83 main_#t~ret28#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret28#1;havoc main_#t~ret28#1; 541#L541 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 602#L517 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 571#L785-2 [2021-12-28 09:40:34,759 INFO L793 eck$LassoCheckResult]: Loop: 571#L785-2 assume !false; 533#L786 assume test_~splverifierCounter~0#1 < 4; 534#L787 test_~tmp~7#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 518#L795 assume !(0 != test_~tmp~7#1); 520#L795-2 test_~tmp___0~2#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 546#L805 assume !(0 != test_~tmp___0~2#1); 603#L805-2 test_~tmp___2~0#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 596#L815 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 515#L823 assume !(0 != test_~tmp___1~1#1); 516#L823-2 assume { :begin_inline_timeShift } true; 557#L607 assume !(0 != ~pumpRunning~0); 558#L607-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 562#L639 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 563#L631-1 assume { :end_inline_processEnvironment__wrappee__base } true; 580#L639-1 assume { :end_inline_processEnvironment } true; 581#L614-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 607#L887 __utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; 615#L568 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 574#L574-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 570#L624 assume { :end_inline_timeShift } true; 571#L785-2 [2021-12-28 09:40:34,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:34,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-28 09:40:34,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:34,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453975844] [2021-12-28 09:40:34,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:34,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:34,772 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:34,796 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:34,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:34,797 INFO L85 PathProgramCache]: Analyzing trace with hash 171614135, now seen corresponding path program 1 times [2021-12-28 09:40:34,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:34,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917787726] [2021-12-28 09:40:34,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:34,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:34,805 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:34,814 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:34,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:34,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1476383877, now seen corresponding path program 1 times [2021-12-28 09:40:34,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:34,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371711472] [2021-12-28 09:40:34,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:34,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:34,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:40:34,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:34,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371711472] [2021-12-28 09:40:34,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371711472] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:34,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:34,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 09:40:34,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250254325] [2021-12-28 09:40:34,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:34,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:34,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 09:40:34,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 09:40:34,983 INFO L87 Difference]: Start difference. First operand 158 states and 209 transitions. cyclomatic complexity: 54 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-12-28 09:40:35,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:35,046 INFO L93 Difference]: Finished difference Result 552 states and 733 transitions. [2021-12-28 09:40:35,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 09:40:35,048 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 552 states and 733 transitions. [2021-12-28 09:40:35,051 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 418 [2021-12-28 09:40:35,054 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 552 states to 552 states and 733 transitions. [2021-12-28 09:40:35,055 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 552 [2021-12-28 09:40:35,055 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 552 [2021-12-28 09:40:35,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 552 states and 733 transitions. [2021-12-28 09:40:35,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:35,057 INFO L681 BuchiCegarLoop]: Abstraction has 552 states and 733 transitions. [2021-12-28 09:40:35,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states and 733 transitions. [2021-12-28 09:40:35,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 309. [2021-12-28 09:40:35,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 309 states have (on average 1.3042071197411003) internal successors, (403), 308 states have internal predecessors, (403), 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) [2021-12-28 09:40:35,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 403 transitions. [2021-12-28 09:40:35,066 INFO L704 BuchiCegarLoop]: Abstraction has 309 states and 403 transitions. [2021-12-28 09:40:35,066 INFO L587 BuchiCegarLoop]: Abstraction has 309 states and 403 transitions. [2021-12-28 09:40:35,067 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:40:35,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 309 states and 403 transitions. [2021-12-28 09:40:35,068 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 226 [2021-12-28 09:40:35,068 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:35,068 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:35,068 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:35,069 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, 1, 1] [2021-12-28 09:40:35,069 INFO L791 eck$LassoCheckResult]: Stem: 1358#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1299#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~5#1, main_~tmp~3#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1300#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1318#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; 1270#L83 main_#t~ret28#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret28#1;havoc main_#t~ret28#1; 1271#L541 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1341#L517 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1302#L785-2 [2021-12-28 09:40:35,069 INFO L793 eck$LassoCheckResult]: Loop: 1302#L785-2 assume !false; 1261#L786 assume test_~splverifierCounter~0#1 < 4; 1262#L787 test_~tmp~7#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 1246#L795 assume !(0 != test_~tmp~7#1); 1248#L795-2 test_~tmp___0~2#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 1439#L805 assume !(0 != test_~tmp___0~2#1); 1359#L805-2 test_~tmp___2~0#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 1334#L815 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1335#L771 assume { :end_inline_startSystem } true; 1244#L823-2 assume { :begin_inline_timeShift } true; 1287#L607 assume !(0 != ~pumpRunning~0); 1288#L607-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1292#L639 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1293#L631-1 assume { :end_inline_processEnvironment__wrappee__base } true; 1314#L639-1 assume { :end_inline_processEnvironment } true; 1315#L614-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 1453#L887 __utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; 1452#L568 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 1451#L919 __utac_acc__Specification3_spec__1_#t~ret30#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret30#1;havoc __utac_acc__Specification3_spec__1_#t~ret30#1; 1448#L574 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 1447#L574-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1301#L624 assume { :end_inline_timeShift } true; 1302#L785-2 [2021-12-28 09:40:35,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:35,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-28 09:40:35,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:35,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90230337] [2021-12-28 09:40:35,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:35,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:35,078 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:35,087 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:35,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:35,088 INFO L85 PathProgramCache]: Analyzing trace with hash 488558936, now seen corresponding path program 1 times [2021-12-28 09:40:35,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:35,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749299850] [2021-12-28 09:40:35,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:35,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:35,093 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:35,097 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:35,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:35,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1605401628, now seen corresponding path program 1 times [2021-12-28 09:40:35,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:35,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548514124] [2021-12-28 09:40:35,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:35,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:35,107 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:35,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:35,118 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:37,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:40:37 BoogieIcfgContainer [2021-12-28 09:40:37,556 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:40:37,556 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:40:37,557 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:40:37,557 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:40:37,561 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:33" (3/4) ... [2021-12-28 09:40:37,563 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-28 09:40:37,627 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 09:40:37,627 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:40:37,628 INFO L158 Benchmark]: Toolchain (without parser) took 4397.52ms. Allocated memory was 54.5MB in the beginning and 136.3MB in the end (delta: 81.8MB). Free memory was 30.8MB in the beginning and 88.2MB in the end (delta: -57.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:37,628 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 54.5MB. Free memory was 36.8MB in the beginning and 36.7MB in the end (delta: 42.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:40:37,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.82ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.6MB in the beginning and 42.9MB in the end (delta: -12.3MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2021-12-28 09:40:37,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.17ms. Allocated memory is still 67.1MB. Free memory was 42.7MB in the beginning and 39.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-28 09:40:37,629 INFO L158 Benchmark]: Boogie Preprocessor took 21.08ms. Allocated memory is still 67.1MB. Free memory was 39.8MB in the beginning and 38.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:37,629 INFO L158 Benchmark]: RCFGBuilder took 313.55ms. Allocated memory is still 67.1MB. Free memory was 37.9MB in the beginning and 37.2MB in the end (delta: 708.9kB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2021-12-28 09:40:37,630 INFO L158 Benchmark]: BuchiAutomizer took 3563.29ms. Allocated memory was 67.1MB in the beginning and 136.3MB in the end (delta: 69.2MB). Free memory was 37.2MB in the beginning and 91.3MB in the end (delta: -54.1MB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:37,630 INFO L158 Benchmark]: Witness Printer took 70.96ms. Allocated memory is still 136.3MB. Free memory was 91.3MB in the beginning and 88.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:37,631 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 54.5MB. Free memory was 36.8MB in the beginning and 36.7MB in the end (delta: 42.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 379.82ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.6MB in the beginning and 42.9MB in the end (delta: -12.3MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.17ms. Allocated memory is still 67.1MB. Free memory was 42.7MB in the beginning and 39.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.08ms. Allocated memory is still 67.1MB. Free memory was 39.8MB in the beginning and 38.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 313.55ms. Allocated memory is still 67.1MB. Free memory was 37.9MB in the beginning and 37.2MB in the end (delta: 708.9kB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3563.29ms. Allocated memory was 67.1MB in the beginning and 136.3MB in the end (delta: 69.2MB). Free memory was 37.2MB in the beginning and 91.3MB in the end (delta: -54.1MB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. * Witness Printer took 70.96ms. Allocated memory is still 136.3MB. Free memory was 91.3MB in the beginning and 88.2MB in the end (delta: 3.1MB). 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 309 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. 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, 429 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 309 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1121 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1121 mSDsluCounter, 1908 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1576 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 97 IncrementalHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 332 mSDtfsCounter, 97 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: 785]: 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, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3654bad9=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69830f4b=0, methaneLevelCritical=0, tmp___0=1, retValue_acc=1, \result=0, tmp=0, retValue_acc=1, \result=1, retValue_acc=0, tmp___1=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e17eac9=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cda5a30=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11fab5df=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4932e880=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4be883d0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7628695c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@523cfa4f=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 785]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L454] int cleanupTimeShifts = 4; [L600] int pumpRunning = 0; [L601] int systemActive = 1; [L844] int waterLevel = 1; [L845] int methaneLevelCritical = 0; [L532] int retValue_acc ; [L533] int tmp ; [L537] FCALL select_helpers() [L538] FCALL select_features() [L539] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L539] RET, EXPR valid_product() [L539] tmp = valid_product() [L541] COND TRUE \read(tmp) [L543] FCALL setup() [L544] CALL runTest() [L526] CALL test() [L776] int splverifierCounter ; [L777] int tmp ; [L778] int tmp___0 ; [L779] int tmp___1 ; [L780] int tmp___2 ; [L783] splverifierCounter = 0 Loop: [L785] COND TRUE 1 [L787] COND TRUE splverifierCounter < 4 [L793] tmp = __VERIFIER_nondet_int() [L795] COND FALSE !(\read(tmp)) [L803] tmp___0 = __VERIFIER_nondet_int() [L805] COND FALSE !(\read(tmp___0)) [L813] tmp___2 = __VERIFIER_nondet_int() [L815] COND TRUE \read(tmp___2) [L817] CALL startSystem() [L770] systemActive = 1 [L817] RET startSystem() [L832] CALL timeShift() [L607] COND FALSE !(\read(pumpRunning)) [L614] COND TRUE \read(systemActive) [L616] CALL processEnvironment() [L636] int tmp ; [L639] COND FALSE !(\read(pumpRunning)) [L654] FCALL processEnvironment__wrappee__base() [L616] RET processEnvironment() [L622] CALL __utac_acc__Specification3_spec__1() [L560] int tmp ; [L561] int tmp___0 ; [L562] int tmp___1 ; [L566] CALL, EXPR isMethaneLevelCritical() [L883] int retValue_acc ; [L886] retValue_acc = methaneLevelCritical [L887] return (retValue_acc); [L566] RET, EXPR isMethaneLevelCritical() [L566] tmp = isMethaneLevelCritical() [L568] COND FALSE !(\read(tmp)) [L572] CALL, EXPR getWaterLevel() [L915] int retValue_acc ; [L918] retValue_acc = waterLevel [L919] return (retValue_acc); [L572] RET, EXPR getWaterLevel() [L572] tmp___0 = getWaterLevel() [L574] COND FALSE !(tmp___0 == 2) [L622] RET __utac_acc__Specification3_spec__1() [L832] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-28 09:40:37,672 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)