./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product61.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 9e3065d54459a1af9237785e443ea1bc130aed8710eaae31e283e0fdf62db72d --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:38:08,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:38:08,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:38:08,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:38:08,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:38:08,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:38:08,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:38:08,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:38:08,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:38:08,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:38:08,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:38:08,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:38:08,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:38:08,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:38:08,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:38:08,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:38:08,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:38:08,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:38:08,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:38:08,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:38:08,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:38:08,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:38:08,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:38:08,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:38:08,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:38:08,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:38:08,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:38:08,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:38:08,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:38:08,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:38:08,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:38:08,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:38:08,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:38:08,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:38:08,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:38:08,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:38:08,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:38:08,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:38:08,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:38:08,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:38:08,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:38:08,523 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-14 23:38:08,551 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:38:08,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:38:08,551 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:38:08,552 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:38:08,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:38:08,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:38:08,553 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:38:08,553 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:38:08,553 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:38:08,553 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:38:08,554 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:38:08,554 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:38:08,554 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:38:08,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:38:08,554 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 23:38:08,554 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:38:08,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:38:08,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 23:38:08,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:38:08,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:38:08,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:38:08,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:38:08,555 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 23:38:08,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:38:08,556 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:38:08,556 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:38:08,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:38:08,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:38:08,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:38:08,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:38:08,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:38:08,557 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:38:08,557 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:38:08,557 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e3065d54459a1af9237785e443ea1bc130aed8710eaae31e283e0fdf62db72d [2021-12-14 23:38:08,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:38:08,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:38:08,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:38:08,766 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:38:08,767 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:38:08,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2021-12-14 23:38:08,810 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b0b088b/3dd5b927494548358c52b415c5c37909/FLAGf040eb31b [2021-12-14 23:38:09,248 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:38:09,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2021-12-14 23:38:09,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b0b088b/3dd5b927494548358c52b415c5c37909/FLAGf040eb31b [2021-12-14 23:38:09,269 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b0b088b/3dd5b927494548358c52b415c5c37909 [2021-12-14 23:38:09,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:38:09,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:38:09,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:38:09,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:38:09,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:38:09,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:38:09" (1/1) ... [2021-12-14 23:38:09,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@694150de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:09, skipping insertion in model container [2021-12-14 23:38:09,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:38:09" (1/1) ... [2021-12-14 23:38:09,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:38:09,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:38:09,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c[13371,13384] [2021-12-14 23:38:09,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:38:09,514 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:38:09,550 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c[13371,13384] [2021-12-14 23:38:09,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:38:09,594 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:38:09,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:09 WrapperNode [2021-12-14 23:38:09,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:38:09,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:38:09,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:38:09,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:38:09,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:09" (1/1) ... [2021-12-14 23:38:09,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:09" (1/1) ... [2021-12-14 23:38:09,659 INFO L137 Inliner]: procedures = 58, calls = 161, calls flagged for inlining = 58, calls inlined = 174, statements flattened = 1269 [2021-12-14 23:38:09,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:38:09,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:38:09,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:38:09,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:38:09,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:09" (1/1) ... [2021-12-14 23:38:09,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:09" (1/1) ... [2021-12-14 23:38:09,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:09" (1/1) ... [2021-12-14 23:38:09,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:09" (1/1) ... [2021-12-14 23:38:09,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:09" (1/1) ... [2021-12-14 23:38:09,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:09" (1/1) ... [2021-12-14 23:38:09,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:09" (1/1) ... [2021-12-14 23:38:09,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:38:09,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:38:09,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:38:09,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:38:09,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:09" (1/1) ... [2021-12-14 23:38:09,696 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:38:09,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:38:09,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-14 23:38:09,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-14 23:38:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 23:38:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 23:38:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:38:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:38:09,804 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:38:09,805 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:38:10,283 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:38:10,290 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:38:10,290 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-14 23:38:10,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:38:10 BoogieIcfgContainer [2021-12-14 23:38:10,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:38:10,292 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:38:10,292 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:38:10,298 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:38:10,299 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:38:10,299 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:38:09" (1/3) ... [2021-12-14 23:38:10,300 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18c6aa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:38:10, skipping insertion in model container [2021-12-14 23:38:10,300 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:38:10,300 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:09" (2/3) ... [2021-12-14 23:38:10,300 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18c6aa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:38:10, skipping insertion in model container [2021-12-14 23:38:10,300 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:38:10,300 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:38:10" (3/3) ... [2021-12-14 23:38:10,301 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product61.cil.c [2021-12-14 23:38:10,327 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:38:10,327 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:38:10,327 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:38:10,327 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:38:10,328 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:38:10,328 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:38:10,328 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:38:10,328 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:38:10,348 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 322 states, 321 states have (on average 1.3582554517133956) internal successors, (436), 321 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:10,380 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 210 [2021-12-14 23:38:10,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:10,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:10,386 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:10,387 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:10,387 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:38:10,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 322 states, 321 states have (on average 1.3582554517133956) internal successors, (436), 321 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:10,399 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 210 [2021-12-14 23:38:10,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:10,400 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:10,401 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:10,401 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:10,404 INFO L791 eck$LassoCheckResult]: Stem: 309#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(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 199#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 286#L594true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 141#L587true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 10#L602true main_#t~ret6#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1; 31#L183true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 208#L155true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 113#L59true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 125#L617-2true [2021-12-14 23:38:10,405 INFO L793 eck$LassoCheckResult]: Loop: 125#L617-2true assume !false; 209#L618true assume test_~splverifierCounter~0#1 < 4; 256#L619true test_~tmp~5#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 56#L627true assume !(0 != test_~tmp~5#1); 66#L627-2true test_~tmp___0~1#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 112#L637true assume !(0 != test_~tmp___0~1#1); 44#L637-2true test_~tmp___2~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 130#L647true assume 0 != test_~tmp___2~0#1; 122#L653-2true assume { :begin_inline_timeShift } true; 79#L789true assume !(0 != ~pumpRunning~0); 210#L789-2true assume !(0 != ~systemActive~0); 237#L796-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 129#L720-5true __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 75#L70true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 182#L70-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 240#L806true assume { :end_inline_timeShift } true; 125#L617-2true [2021-12-14 23:38:10,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:10,410 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-14 23:38:10,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:10,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485892186] [2021-12-14 23:38:10,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:10,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:10,518 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:10,559 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:10,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:10,561 INFO L85 PathProgramCache]: Analyzing trace with hash 200498378, now seen corresponding path program 1 times [2021-12-14 23:38:10,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:10,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850527323] [2021-12-14 23:38:10,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:10,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:10,584 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:10,590 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:10,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:10,592 INFO L85 PathProgramCache]: Analyzing trace with hash 38210995, now seen corresponding path program 1 times [2021-12-14 23:38:10,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:10,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241245824] [2021-12-14 23:38:10,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:10,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:38:10,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:38:10,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:38:10,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241245824] [2021-12-14 23:38:10,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241245824] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:38:10,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:38:10,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 23:38:10,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035433649] [2021-12-14 23:38:10,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:38:10,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:38:10,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 23:38:10,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 23:38:10,837 INFO L87 Difference]: Start difference. First operand has 322 states, 321 states have (on average 1.3582554517133956) internal successors, (436), 321 states have internal predecessors, (436), 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) [2021-12-14 23:38:10,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:38:10,913 INFO L93 Difference]: Finished difference Result 319 states and 422 transitions. [2021-12-14 23:38:10,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 23:38:10,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 422 transitions. [2021-12-14 23:38:10,926 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 206 [2021-12-14 23:38:10,933 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 309 states and 412 transitions. [2021-12-14 23:38:10,935 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 309 [2021-12-14 23:38:10,936 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 309 [2021-12-14 23:38:10,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 309 states and 412 transitions. [2021-12-14 23:38:10,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:38:10,941 INFO L681 BuchiCegarLoop]: Abstraction has 309 states and 412 transitions. [2021-12-14 23:38:10,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states and 412 transitions. [2021-12-14 23:38:10,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2021-12-14 23:38:10,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 309 states have (on average 1.3333333333333333) internal successors, (412), 308 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:10,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 412 transitions. [2021-12-14 23:38:10,987 INFO L704 BuchiCegarLoop]: Abstraction has 309 states and 412 transitions. [2021-12-14 23:38:10,987 INFO L587 BuchiCegarLoop]: Abstraction has 309 states and 412 transitions. [2021-12-14 23:38:10,987 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:38:10,987 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 309 states and 412 transitions. [2021-12-14 23:38:10,989 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 206 [2021-12-14 23:38:10,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:10,990 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:10,995 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:10,996 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] [2021-12-14 23:38:10,996 INFO L791 eck$LassoCheckResult]: Stem: 967#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(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 924#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 925#L594 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 873#L587 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 674#L602 main_#t~ret6#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1; 675#L183 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 720#L155 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 845#L59 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 846#L617-2 [2021-12-14 23:38:10,996 INFO L793 eck$LassoCheckResult]: Loop: 846#L617-2 assume !false; 856#L618 assume test_~splverifierCounter~0#1 < 4; 928#L619 test_~tmp~5#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 759#L627 assume !(0 != test_~tmp~5#1); 761#L627-2 test_~tmp___0~1#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 776#L637 assume !(0 != test_~tmp___0~1#1); 737#L637-2 test_~tmp___2~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 738#L647 assume 0 != test_~tmp___2~0#1; 748#L653-2 assume { :begin_inline_timeShift } true; 798#L789 assume !(0 != ~pumpRunning~0); 734#L789-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; 739#L873 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret44#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 721#L720 isMethaneAlarm_#t~ret44#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret44#1;havoc isMethaneAlarm_#t~ret44#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; 722#L934 processEnvironment_#t~ret42#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~8#1 := processEnvironment_#t~ret42#1;havoc processEnvironment_#t~ret42#1; 706#L877 assume 0 != processEnvironment_~tmp~8#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 707#L924 assume { :end_inline_deactivatePump } true; 725#L873-1 assume { :end_inline_processEnvironment } true; 949#L796-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 861#L720-5 __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 792#L70 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 793#L70-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 910#L806 assume { :end_inline_timeShift } true; 846#L617-2 [2021-12-14 23:38:10,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:10,997 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-14 23:38:10,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:10,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850624243] [2021-12-14 23:38:10,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:10,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:11,020 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:11,033 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:11,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:11,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1409637101, now seen corresponding path program 1 times [2021-12-14 23:38:11,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:11,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194807854] [2021-12-14 23:38:11,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:11,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:38:11,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:38:11,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:38:11,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194807854] [2021-12-14 23:38:11,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194807854] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:38:11,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:38:11,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 23:38:11,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319143338] [2021-12-14 23:38:11,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:38:11,070 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-14 23:38:11,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:38:11,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 23:38:11,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 23:38:11,071 INFO L87 Difference]: Start difference. First operand 309 states and 412 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:11,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:38:11,142 INFO L93 Difference]: Finished difference Result 319 states and 405 transitions. [2021-12-14 23:38:11,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 23:38:11,143 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 405 transitions. [2021-12-14 23:38:11,147 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 218 [2021-12-14 23:38:11,149 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 319 states and 405 transitions. [2021-12-14 23:38:11,149 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 319 [2021-12-14 23:38:11,149 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 319 [2021-12-14 23:38:11,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 319 states and 405 transitions. [2021-12-14 23:38:11,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:38:11,151 INFO L681 BuchiCegarLoop]: Abstraction has 319 states and 405 transitions. [2021-12-14 23:38:11,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states and 405 transitions. [2021-12-14 23:38:11,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2021-12-14 23:38:11,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 319 states have (on average 1.2695924764890283) internal successors, (405), 318 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:11,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 405 transitions. [2021-12-14 23:38:11,159 INFO L704 BuchiCegarLoop]: Abstraction has 319 states and 405 transitions. [2021-12-14 23:38:11,159 INFO L587 BuchiCegarLoop]: Abstraction has 319 states and 405 transitions. [2021-12-14 23:38:11,159 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-14 23:38:11,159 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 319 states and 405 transitions. [2021-12-14 23:38:11,160 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 218 [2021-12-14 23:38:11,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:11,161 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:11,162 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:11,162 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:11,163 INFO L791 eck$LassoCheckResult]: Stem: 1560#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(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1510#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 1511#L594 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1466#L587 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1302#L602 main_#t~ret6#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1; 1303#L183 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 1339#L155 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1436#L59 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1437#L617-2 [2021-12-14 23:38:11,167 INFO L793 eck$LassoCheckResult]: Loop: 1437#L617-2 assume !false; 1601#L618 assume test_~splverifierCounter~0#1 < 4; 1600#L619 test_~tmp~5#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 1598#L627 assume !(0 != test_~tmp~5#1); 1596#L627-2 test_~tmp___0~1#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 1594#L637 assume !(0 != test_~tmp___0~1#1); 1592#L637-2 test_~tmp___2~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 1590#L647 assume 0 != test_~tmp___2~0#1; 1589#L653-2 assume { :begin_inline_timeShift } true; 1406#L789 assume !(0 != ~pumpRunning~0); 1407#L789-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; 1356#L873 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret41#1, processEnvironment__wrappee__methaneQuery_~tmp~7#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~7#1; 1357#L847-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1361#L821-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~10#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~10#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1362#L760-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1517#L765-3 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~10#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 1518#L992-9 assume 0 != isHighWaterLevel_~tmp~10#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1505#L992-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 1506#L998-3 processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 1501#L825-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1502#L813-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1553#L821-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1611#L847-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1546#L873-1 assume { :end_inline_processEnvironment } true; 1609#L796-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1608#L720-5 __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 1604#L70 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 1603#L70-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1602#L806 assume { :end_inline_timeShift } true; 1437#L617-2 [2021-12-14 23:38:11,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:11,168 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-14 23:38:11,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:11,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321502883] [2021-12-14 23:38:11,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:11,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:11,177 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:11,189 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:11,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:11,190 INFO L85 PathProgramCache]: Analyzing trace with hash 523541246, now seen corresponding path program 1 times [2021-12-14 23:38:11,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:11,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469100068] [2021-12-14 23:38:11,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:11,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:11,198 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:11,208 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:11,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:11,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1429957813, now seen corresponding path program 1 times [2021-12-14 23:38:11,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:11,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91233213] [2021-12-14 23:38:11,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:11,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:11,222 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:11,244 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:13,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:38:13 BoogieIcfgContainer [2021-12-14 23:38:13,827 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:38:13,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:38:13,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:38:13,828 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:38:13,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:38:10" (3/4) ... [2021-12-14 23:38:13,830 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-14 23:38:13,862 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 23:38:13,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:38:13,863 INFO L158 Benchmark]: Toolchain (without parser) took 4590.84ms. Allocated memory was 92.3MB in the beginning and 178.3MB in the end (delta: 86.0MB). Free memory was 63.8MB in the beginning and 142.8MB in the end (delta: -79.0MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2021-12-14 23:38:13,863 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 92.3MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:38:13,863 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.14ms. Allocated memory was 92.3MB in the beginning and 132.1MB in the end (delta: 39.8MB). Free memory was 63.8MB in the beginning and 99.9MB in the end (delta: -36.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-14 23:38:13,864 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.04ms. Allocated memory is still 132.1MB. Free memory was 99.9MB in the beginning and 94.8MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-14 23:38:13,864 INFO L158 Benchmark]: Boogie Preprocessor took 29.48ms. Allocated memory is still 132.1MB. Free memory was 94.8MB in the beginning and 91.5MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:38:13,864 INFO L158 Benchmark]: RCFGBuilder took 601.14ms. Allocated memory is still 132.1MB. Free memory was 91.5MB in the beginning and 103.7MB in the end (delta: -12.1MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2021-12-14 23:38:13,865 INFO L158 Benchmark]: BuchiAutomizer took 3535.58ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 103.7MB in the beginning and 146.0MB in the end (delta: -42.3MB). Peak memory consumption was 89.6MB. Max. memory is 16.1GB. [2021-12-14 23:38:13,865 INFO L158 Benchmark]: Witness Printer took 34.22ms. Allocated memory is still 178.3MB. Free memory was 146.0MB in the beginning and 142.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-14 23:38:13,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 92.3MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.14ms. Allocated memory was 92.3MB in the beginning and 132.1MB in the end (delta: 39.8MB). Free memory was 63.8MB in the beginning and 99.9MB in the end (delta: -36.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.04ms. Allocated memory is still 132.1MB. Free memory was 99.9MB in the beginning and 94.8MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.48ms. Allocated memory is still 132.1MB. Free memory was 94.8MB in the beginning and 91.5MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 601.14ms. Allocated memory is still 132.1MB. Free memory was 91.5MB in the beginning and 103.7MB in the end (delta: -12.1MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3535.58ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 103.7MB in the beginning and 146.0MB in the end (delta: -42.3MB). Peak memory consumption was 89.6MB. Max. memory is 16.1GB. * Witness Printer took 34.22ms. Allocated memory is still 178.3MB. Free memory was 146.0MB in the beginning and 142.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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 319 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 319 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1485 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1485 mSDsluCounter, 850 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 135 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 715 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 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: 617]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9e48495=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@745c60e6=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36b4f5d9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2308b93c=0, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fbfa222=0, tmp___0=0, tmp=0, methaneLevelCritical=0, retValue_acc=0, tmp=0, \result=0, retValue_acc=1, retValue_acc=0, \result=1, \result=1, tmp=1, retValue_acc=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e82d8f5=0, tmp___2=29, methAndRunningLastTime=0, cleanupTimeShifts=4, \result=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a819fb7=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55eb5266=0, tmp=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13d356dd=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20d6ecf8=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b92ee62=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 617]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int methAndRunningLastTime ; [L92] int cleanupTimeShifts = 4; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L677] int waterLevel = 1; [L678] int methaneLevelCritical = 0; [L782] int pumpRunning = 0; [L783] int systemActive = 1; [L174] int retValue_acc ; [L175] int tmp ; [L179] FCALL select_helpers() [L180] FCALL select_features() [L181] CALL, EXPR valid_product() [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] return (retValue_acc); [L181] RET, EXPR valid_product() [L181] tmp = valid_product() [L183] COND TRUE \read(tmp) [L185] FCALL setup() [L186] CALL runTest() [L164] CALL __utac_acc__Specification2_spec__1() [L58] methAndRunningLastTime = 0 [L164] RET __utac_acc__Specification2_spec__1() [L165] CALL test() [L608] int splverifierCounter ; [L609] int tmp ; [L610] int tmp___0 ; [L611] int tmp___1 ; [L612] int tmp___2 ; [L615] splverifierCounter = 0 Loop: [L617] COND TRUE 1 [L619] COND TRUE splverifierCounter < 4 [L625] tmp = __VERIFIER_nondet_int() [L627] COND FALSE !(\read(tmp)) [L635] tmp___0 = __VERIFIER_nondet_int() [L637] COND FALSE !(\read(tmp___0)) [L645] tmp___2 = __VERIFIER_nondet_int() [L647] COND TRUE \read(tmp___2) [L660] CALL timeShift() [L789] COND FALSE !(\read(pumpRunning)) [L796] COND TRUE \read(systemActive) [L798] CALL processEnvironment() [L870] int tmp ; [L873] COND FALSE !(\read(pumpRunning)) [L888] CALL processEnvironment__wrappee__methaneQuery() [L844] int tmp ; [L847] COND FALSE !(\read(pumpRunning)) [L862] CALL processEnvironment__wrappee__highWaterSensor() [L818] int tmp ; [L821] COND TRUE ! pumpRunning [L823] CALL, EXPR isHighWaterLevel() [L984] int retValue_acc ; [L985] int tmp ; [L986] int tmp___0 ; [L990] CALL, EXPR isHighWaterSensorDry() [L757] int retValue_acc ; [L760] COND TRUE waterLevel < 2 [L761] retValue_acc = 1 [L762] return (retValue_acc); [L990] RET, EXPR isHighWaterSensorDry() [L990] tmp = isHighWaterSensorDry() [L992] COND TRUE \read(tmp) [L993] tmp___0 = 0 [L997] retValue_acc = tmp___0 [L998] return (retValue_acc); [L823] RET, EXPR isHighWaterLevel() [L823] tmp = isHighWaterLevel() [L825] COND FALSE !(\read(tmp)) [L831] FCALL processEnvironment__wrappee__base() [L862] RET processEnvironment__wrappee__highWaterSensor() [L888] RET processEnvironment__wrappee__methaneQuery() [L798] RET processEnvironment() [L804] CALL __utac_acc__Specification2_spec__2() [L63] int tmp ; [L64] int tmp___0 ; [L68] CALL, EXPR isMethaneLevelCritical() [L716] int retValue_acc ; [L719] retValue_acc = methaneLevelCritical [L720] return (retValue_acc); [L68] RET, EXPR isMethaneLevelCritical() [L68] tmp = isMethaneLevelCritical() [L70] COND FALSE !(\read(tmp)) [L86] methAndRunningLastTime = 0 [L804] RET __utac_acc__Specification2_spec__2() [L660] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-14 23:38:13,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)