./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product21.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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_product21.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 88ff815406ee05bb7be24dfe33a6433686b8428d0ee44eba6801f1c0f5610c0a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:03,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:03,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:03,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:03,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:03,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:03,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:03,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:03,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:03,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:03,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:03,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:03,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:03,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:03,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:03,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:03,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:03,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:03,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:03,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:03,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:03,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:03,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:03,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:03,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:03,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:03,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:03,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:03,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:03,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:03,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:03,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:03,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:03,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:03,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:03,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:03,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:03,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:03,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:03,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:03,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:03,288 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:03,314 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:03,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:03,314 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:03,315 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:03,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:03,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:03,316 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:03,316 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:03,316 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:03,316 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:03,317 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:03,317 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:03,317 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:03,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:03,318 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:03,318 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:03,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:03,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:03,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:03,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:03,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:03,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:03,319 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:03,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:03,320 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:03,320 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:03,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:03,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:03,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:03,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:03,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:03,322 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:03,322 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88ff815406ee05bb7be24dfe33a6433686b8428d0ee44eba6801f1c0f5610c0a [2022-02-21 04:16:03,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:03,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:03,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:03,573 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:03,573 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:03,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product21.cil.c [2022-02-21 04:16:03,633 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd058d146/324b80f24d78451e8ef981eefb4fea03/FLAG2b1aa8a75 [2022-02-21 04:16:04,020 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:04,022 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product21.cil.c [2022-02-21 04:16:04,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd058d146/324b80f24d78451e8ef981eefb4fea03/FLAG2b1aa8a75 [2022-02-21 04:16:04,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd058d146/324b80f24d78451e8ef981eefb4fea03 [2022-02-21 04:16:04,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:04,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:04,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:04,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:04,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:04,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:04" (1/1) ... [2022-02-21 04:16:04,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b122f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:04, skipping insertion in model container [2022-02-21 04:16:04,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:04" (1/1) ... [2022-02-21 04:16:04,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:04,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:04,644 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_product21.cil.c[14660,14673] [2022-02-21 04:16:04,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:04,689 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:04,750 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_product21.cil.c[14660,14673] [2022-02-21 04:16:04,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:04,782 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:04,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:04 WrapperNode [2022-02-21 04:16:04,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:04,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:04,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:04,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:04,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:04" (1/1) ... [2022-02-21 04:16:04,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:04" (1/1) ... [2022-02-21 04:16:04,867 INFO L137 Inliner]: procedures = 54, calls = 154, calls flagged for inlining = 51, calls inlined = 78, statements flattened = 573 [2022-02-21 04:16:04,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:04,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:04,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:04,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:04,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:04" (1/1) ... [2022-02-21 04:16:04,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:04" (1/1) ... [2022-02-21 04:16:04,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:04" (1/1) ... [2022-02-21 04:16:04,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:04" (1/1) ... [2022-02-21 04:16:04,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:04" (1/1) ... [2022-02-21 04:16:04,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:04" (1/1) ... [2022-02-21 04:16:04,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:04" (1/1) ... [2022-02-21 04:16:04,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:04,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:04,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:04,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:04,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:04" (1/1) ... [2022-02-21 04:16:04,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:04,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:04,963 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) [2022-02-21 04:16:04,966 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 [2022-02-21 04:16:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:05,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:05,054 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:05,055 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:05,495 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:05,501 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:05,505 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:05,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:05 BoogieIcfgContainer [2022-02-21 04:16:05,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:05,508 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:05,508 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:05,515 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:05,516 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:05,516 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:04" (1/3) ... [2022-02-21 04:16:05,517 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7987c807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:05, skipping insertion in model container [2022-02-21 04:16:05,518 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:05,518 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:04" (2/3) ... [2022-02-21 04:16:05,518 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7987c807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:05, skipping insertion in model container [2022-02-21 04:16:05,518 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:05,518 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:05" (3/3) ... [2022-02-21 04:16:05,520 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product21.cil.c [2022-02-21 04:16:05,566 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:05,566 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:05,567 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:05,567 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:05,567 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:05,567 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:05,567 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:05,567 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:05,589 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 154 states, 153 states have (on average 1.3594771241830066) internal successors, (208), 153 states have internal predecessors, (208), 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) [2022-02-21 04:16:05,641 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2022-02-21 04:16:05,641 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:05,642 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:05,647 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:05,647 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:05,648 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:05,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 154 states, 153 states have (on average 1.3594771241830066) internal successors, (208), 153 states have internal predecessors, (208), 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) [2022-02-21 04:16:05,677 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2022-02-21 04:16:05,677 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:05,677 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:05,678 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:05,679 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:05,687 INFO L791 eck$LassoCheckResult]: Stem: 142#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);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 48#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 62#L687true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 147#L680true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 150#L695true main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 58#L549true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 104#L521true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 122#L425true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 20#L890-2true [2022-02-21 04:16:05,688 INFO L793 eck$LassoCheckResult]: Loop: 20#L890-2true assume !false; 85#L891true assume test_~splverifierCounter~0#1 < 4; 139#L892true test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 99#L900true assume !(0 != test_~tmp~8#1); 123#L900-2true test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 17#L910true assume !(0 != test_~tmp___0~2#1); 70#L910-2true test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 143#L920true assume 0 != test_~tmp___2~0#1; 115#L926-2true assume { :begin_inline_timeShift } true; 134#L709true assume !(0 != ~pumpRunning~0); 7#L709-2true assume !(0 != ~systemActive~0); 135#L716-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 26#L610-1true __utac_acc__Specification2_spec__2_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret27#1;havoc __utac_acc__Specification2_spec__2_#t~ret27#1; 46#L436true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 30#L436-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 101#L726true assume { :end_inline_timeShift } true; 20#L890-2true [2022-02-21 04:16:05,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:05,693 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:16:05,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:05,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611256527] [2022-02-21 04:16:05,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:05,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:05,825 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:05,899 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:05,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:05,902 INFO L85 PathProgramCache]: Analyzing trace with hash -947890230, now seen corresponding path program 1 times [2022-02-21 04:16:05,903 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:05,904 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264518744] [2022-02-21 04:16:05,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:05,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:05,930 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:05,938 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:05,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:05,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1110177613, now seen corresponding path program 1 times [2022-02-21 04:16:05,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:05,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879881137] [2022-02-21 04:16:05,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:05,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:06,092 INFO L290 TraceCheckUtils]: 0: Hoare triple {162#true} 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);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; {164#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:06,096 INFO L290 TraceCheckUtils]: 1: Hoare triple {164#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; {164#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:06,097 INFO L290 TraceCheckUtils]: 2: Hoare triple {164#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {164#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:06,097 INFO L290 TraceCheckUtils]: 3: Hoare triple {164#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; {165#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:06,098 INFO L290 TraceCheckUtils]: 4: Hoare triple {165#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret29#1;havoc main_#t~ret29#1; {166#(= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0)} is VALID [2022-02-21 04:16:06,098 INFO L290 TraceCheckUtils]: 5: Hoare triple {166#(= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0)} assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:06,098 INFO L290 TraceCheckUtils]: 6: Hoare triple {167#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:06,099 INFO L290 TraceCheckUtils]: 7: Hoare triple {167#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:06,099 INFO L290 TraceCheckUtils]: 8: Hoare triple {167#(not (= 0 ~systemActive~0))} assume !false; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:06,100 INFO L290 TraceCheckUtils]: 9: Hoare triple {167#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:06,101 INFO L290 TraceCheckUtils]: 10: Hoare triple {167#(not (= 0 ~systemActive~0))} test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:06,101 INFO L290 TraceCheckUtils]: 11: Hoare triple {167#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~8#1); {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:06,102 INFO L290 TraceCheckUtils]: 12: Hoare triple {167#(not (= 0 ~systemActive~0))} test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:06,103 INFO L290 TraceCheckUtils]: 13: Hoare triple {167#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~2#1); {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:06,103 INFO L290 TraceCheckUtils]: 14: Hoare triple {167#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:06,104 INFO L290 TraceCheckUtils]: 15: Hoare triple {167#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:06,104 INFO L290 TraceCheckUtils]: 16: Hoare triple {167#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:06,105 INFO L290 TraceCheckUtils]: 17: Hoare triple {167#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:06,105 INFO L290 TraceCheckUtils]: 18: Hoare triple {167#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {163#false} is VALID [2022-02-21 04:16:06,105 INFO L290 TraceCheckUtils]: 19: Hoare triple {163#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; {163#false} is VALID [2022-02-21 04:16:06,105 INFO L290 TraceCheckUtils]: 20: Hoare triple {163#false} __utac_acc__Specification2_spec__2_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret27#1;havoc __utac_acc__Specification2_spec__2_#t~ret27#1; {163#false} is VALID [2022-02-21 04:16:06,106 INFO L290 TraceCheckUtils]: 21: Hoare triple {163#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; {163#false} is VALID [2022-02-21 04:16:06,106 INFO L290 TraceCheckUtils]: 22: Hoare triple {163#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {163#false} is VALID [2022-02-21 04:16:06,106 INFO L290 TraceCheckUtils]: 23: Hoare triple {163#false} assume { :end_inline_timeShift } true; {163#false} is VALID [2022-02-21 04:16:06,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:06,107 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:06,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879881137] [2022-02-21 04:16:06,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879881137] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:06,109 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:06,109 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:06,109 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743178388] [2022-02-21 04:16:06,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:06,239 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:06,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:06,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:06,268 INFO L87 Difference]: Start difference. First operand has 154 states, 153 states have (on average 1.3594771241830066) internal successors, (208), 153 states have internal predecessors, (208), 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) [2022-02-21 04:16:06,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:06,615 INFO L93 Difference]: Finished difference Result 151 states and 194 transitions. [2022-02-21 04:16:06,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:16:06,616 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-21 04:16:06,636 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:06,640 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 151 states and 194 transitions. [2022-02-21 04:16:06,644 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 94 [2022-02-21 04:16:06,649 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 151 states to 141 states and 184 transitions. [2022-02-21 04:16:06,650 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 141 [2022-02-21 04:16:06,651 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 141 [2022-02-21 04:16:06,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 141 states and 184 transitions. [2022-02-21 04:16:06,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:06,652 INFO L681 BuchiCegarLoop]: Abstraction has 141 states and 184 transitions. [2022-02-21 04:16:06,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states and 184 transitions. [2022-02-21 04:16:06,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2022-02-21 04:16:06,680 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:06,685 INFO L82 GeneralOperation]: Start isEquivalent. First operand 141 states and 184 transitions. Second operand has 141 states, 141 states have (on average 1.3049645390070923) internal successors, (184), 140 states have internal predecessors, (184), 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) [2022-02-21 04:16:06,686 INFO L74 IsIncluded]: Start isIncluded. First operand 141 states and 184 transitions. Second operand has 141 states, 141 states have (on average 1.3049645390070923) internal successors, (184), 140 states have internal predecessors, (184), 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) [2022-02-21 04:16:06,691 INFO L87 Difference]: Start difference. First operand 141 states and 184 transitions. Second operand has 141 states, 141 states have (on average 1.3049645390070923) internal successors, (184), 140 states have internal predecessors, (184), 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) [2022-02-21 04:16:06,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:06,698 INFO L93 Difference]: Finished difference Result 141 states and 184 transitions. [2022-02-21 04:16:06,699 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 184 transitions. [2022-02-21 04:16:06,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:06,700 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:06,701 INFO L74 IsIncluded]: Start isIncluded. First operand has 141 states, 141 states have (on average 1.3049645390070923) internal successors, (184), 140 states have internal predecessors, (184), 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 141 states and 184 transitions. [2022-02-21 04:16:06,701 INFO L87 Difference]: Start difference. First operand has 141 states, 141 states have (on average 1.3049645390070923) internal successors, (184), 140 states have internal predecessors, (184), 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 141 states and 184 transitions. [2022-02-21 04:16:06,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:06,707 INFO L93 Difference]: Finished difference Result 141 states and 184 transitions. [2022-02-21 04:16:06,707 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 184 transitions. [2022-02-21 04:16:06,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:06,712 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:06,712 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:06,712 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:06,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 141 states have (on average 1.3049645390070923) internal successors, (184), 140 states have internal predecessors, (184), 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) [2022-02-21 04:16:06,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 184 transitions. [2022-02-21 04:16:06,717 INFO L704 BuchiCegarLoop]: Abstraction has 141 states and 184 transitions. [2022-02-21 04:16:06,717 INFO L587 BuchiCegarLoop]: Abstraction has 141 states and 184 transitions. [2022-02-21 04:16:06,718 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:06,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 184 transitions. [2022-02-21 04:16:06,720 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 94 [2022-02-21 04:16:06,721 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:06,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:06,722 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:06,722 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] [2022-02-21 04:16:06,722 INFO L791 eck$LassoCheckResult]: Stem: 461#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);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 394#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 395#L687 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 413#L680 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 462#L695 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 408#L549 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 409#L521 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 447#L425 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 353#L890-2 [2022-02-21 04:16:06,722 INFO L793 eck$LassoCheckResult]: Loop: 353#L890-2 assume !false; 354#L891 assume test_~splverifierCounter~0#1 < 4; 432#L892 test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 445#L900 assume !(0 != test_~tmp~8#1); 403#L900-2 test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 347#L910 assume !(0 != test_~tmp___0~2#1); 349#L910-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 421#L920 assume 0 != test_~tmp___2~0#1; 451#L926-2 assume { :begin_inline_timeShift } true; 454#L709 assume !(0 != ~pumpRunning~0); 329#L709-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 330#L767 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret36#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 437#L741-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 438#L733-3 assume { :end_inline_processEnvironment__wrappee__base } true; 442#L741-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 416#L767-1 assume { :end_inline_processEnvironment } true; 417#L716-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 362#L610-1 __utac_acc__Specification2_spec__2_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret27#1;havoc __utac_acc__Specification2_spec__2_#t~ret27#1; 363#L436 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 358#L436-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 366#L726 assume { :end_inline_timeShift } true; 353#L890-2 [2022-02-21 04:16:06,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:06,723 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:16:06,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:06,723 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107264191] [2022-02-21 04:16:06,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:06,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:06,758 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:06,785 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:06,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:06,788 INFO L85 PathProgramCache]: Analyzing trace with hash -571727994, now seen corresponding path program 1 times [2022-02-21 04:16:06,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:06,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38180874] [2022-02-21 04:16:06,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:06,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:06,795 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:06,801 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:06,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:06,803 INFO L85 PathProgramCache]: Analyzing trace with hash -973105091, now seen corresponding path program 1 times [2022-02-21 04:16:06,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:06,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001585321] [2022-02-21 04:16:06,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:06,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:06,821 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:06,832 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:09,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:09 BoogieIcfgContainer [2022-02-21 04:16:09,490 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:09,491 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:09,491 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:09,491 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:09,491 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:05" (3/4) ... [2022-02-21 04:16:09,493 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:09,531 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:09,533 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:09,534 INFO L158 Benchmark]: Toolchain (without parser) took 5158.74ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 59.3MB in the beginning and 69.0MB in the end (delta: -9.7MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:09,535 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:09,535 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.41ms. Allocated memory is still 96.5MB. Free memory was 59.1MB in the beginning and 60.5MB in the end (delta: -1.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-21 04:16:09,536 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.41ms. Allocated memory is still 96.5MB. Free memory was 60.5MB in the beginning and 56.5MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:09,536 INFO L158 Benchmark]: Boogie Preprocessor took 64.48ms. Allocated memory is still 96.5MB. Free memory was 56.5MB in the beginning and 54.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:09,536 INFO L158 Benchmark]: RCFGBuilder took 573.85ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 54.0MB in the beginning and 82.7MB in the end (delta: -28.7MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2022-02-21 04:16:09,537 INFO L158 Benchmark]: BuchiAutomizer took 3982.17ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 81.8MB in the beginning and 72.1MB in the end (delta: 9.7MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:09,537 INFO L158 Benchmark]: Witness Printer took 42.63ms. Allocated memory is still 142.6MB. Free memory was 72.1MB in the beginning and 69.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:09,538 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.41ms. Allocated memory is still 96.5MB. Free memory was 59.1MB in the beginning and 60.5MB in the end (delta: -1.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.41ms. Allocated memory is still 96.5MB. Free memory was 60.5MB in the beginning and 56.5MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.48ms. Allocated memory is still 96.5MB. Free memory was 56.5MB in the beginning and 54.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 573.85ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 54.0MB in the beginning and 82.7MB in the end (delta: -28.7MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 3982.17ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 81.8MB in the beginning and 72.1MB in the end (delta: 9.7MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. * Witness Printer took 42.63ms. Allocated memory is still 142.6MB. Free memory was 72.1MB in the beginning and 69.0MB 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 141 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 141 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 572 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 572 mSDsluCounter, 193 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 189 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 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: 890]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@373dfa99=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49232b26=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d9e9b88=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57419862=0, NULL=1, methaneLevelCritical=0, retValue_acc=0, tmp=0, \result=0, retValue_acc=1, \result=1, tmp=0, tmp___2=29, methAndRunningLastTime=0, tmp=1, cleanupTimeShifts=4, \result=0, head=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@234a8364=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47032ed8=0, waterLevel=1, systemActive=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d8dde29=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2896389=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@159c1e=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 890]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L419] int methAndRunningLastTime ; [L458] int cleanupTimeShifts = 4; [L567] int waterLevel = 1; [L568] int methaneLevelCritical = 0; [L702] int pumpRunning = 0; [L703] int systemActive = 1; [L540] int retValue_acc ; [L541] int tmp ; [L545] FCALL select_helpers() [L546] FCALL select_features() [L547] CALL, EXPR valid_product() [L691] int retValue_acc ; [L694] retValue_acc = 1 [L695] return (retValue_acc); [L547] RET, EXPR valid_product() [L547] tmp = valid_product() [L549] COND TRUE \read(tmp) [L551] FCALL setup() [L552] CALL runTest() [L530] CALL __utac_acc__Specification2_spec__1() [L424] methAndRunningLastTime = 0 [L530] RET __utac_acc__Specification2_spec__1() [L531] CALL test() [L881] int splverifierCounter ; [L882] int tmp ; [L883] int tmp___0 ; [L884] int tmp___1 ; [L885] int tmp___2 ; [L888] splverifierCounter = 0 Loop: [L890] COND TRUE 1 [L892] COND TRUE splverifierCounter < 4 [L898] tmp = __VERIFIER_nondet_int() [L900] COND FALSE !(\read(tmp)) [L908] tmp___0 = __VERIFIER_nondet_int() [L910] COND FALSE !(\read(tmp___0)) [L918] tmp___2 = __VERIFIER_nondet_int() [L920] COND TRUE \read(tmp___2) [L933] CALL timeShift() [L709] COND FALSE !(\read(pumpRunning)) [L716] COND TRUE \read(systemActive) [L718] CALL processEnvironment() [L764] int tmp ; [L767] COND FALSE !(\read(pumpRunning)) [L782] CALL processEnvironment__wrappee__lowWaterSensor() [L738] int tmp ; [L741] COND FALSE !(\read(pumpRunning)) [L756] FCALL processEnvironment__wrappee__base() [L782] RET processEnvironment__wrappee__lowWaterSensor() [L718] RET processEnvironment() [L724] CALL __utac_acc__Specification2_spec__2() [L429] int tmp ; [L430] int tmp___0 ; [L434] CALL, EXPR isMethaneLevelCritical() [L606] int retValue_acc ; [L609] retValue_acc = methaneLevelCritical [L610] return (retValue_acc); [L434] RET, EXPR isMethaneLevelCritical() [L434] tmp = isMethaneLevelCritical() [L436] COND FALSE !(\read(tmp)) [L452] methAndRunningLastTime = 0 [L724] RET __utac_acc__Specification2_spec__2() [L933] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:09,579 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)