./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product46.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_product46.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 02fb1fa00f2030f7900be70496baf2f4c44344da378fa11ef09f1f26dc14ae9d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:19,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:19,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:19,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:19,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:19,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:19,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:19,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:19,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:19,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:19,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:19,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:19,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:19,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:19,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:19,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:19,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:19,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:19,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:19,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:19,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:19,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:19,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:19,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:19,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:19,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:19,323 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:19,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:19,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:19,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:19,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:19,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:19,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:19,328 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:19,329 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:19,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:19,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:19,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:19,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:19,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:19,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:19,332 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:19,361 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:19,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:19,362 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:19,362 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:19,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:19,364 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:19,364 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:19,364 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:19,364 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:19,364 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:19,365 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:19,365 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:19,365 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:19,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:19,366 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:19,366 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:19,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:19,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:19,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:19,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:19,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:19,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:19,367 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:19,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:19,369 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:19,369 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:19,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:19,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:19,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:19,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:19,370 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:19,370 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:19,371 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02fb1fa00f2030f7900be70496baf2f4c44344da378fa11ef09f1f26dc14ae9d [2022-02-21 04:16:19,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:19,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:19,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:19,564 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:19,565 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:19,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c [2022-02-21 04:16:19,629 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd71dcf8c/ad3c80a9ede1483d94fc52c77938b035/FLAG708bfab0f [2022-02-21 04:16:20,026 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:20,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c [2022-02-21 04:16:20,037 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd71dcf8c/ad3c80a9ede1483d94fc52c77938b035/FLAG708bfab0f [2022-02-21 04:16:20,046 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd71dcf8c/ad3c80a9ede1483d94fc52c77938b035 [2022-02-21 04:16:20,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:20,049 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:20,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:20,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:20,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:20,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:20" (1/1) ... [2022-02-21 04:16:20,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f5a96f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:20, skipping insertion in model container [2022-02-21 04:16:20,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:20" (1/1) ... [2022-02-21 04:16:20,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:20,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:20,308 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_product46.cil.c[17174,17187] [2022-02-21 04:16:20,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:20,318 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:20,405 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_product46.cil.c[17174,17187] [2022-02-21 04:16:20,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:20,426 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:20,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:20 WrapperNode [2022-02-21 04:16:20,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:20,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:20,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:20,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:20,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:20" (1/1) ... [2022-02-21 04:16:20,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:20" (1/1) ... [2022-02-21 04:16:20,501 INFO L137 Inliner]: procedures = 56, calls = 157, calls flagged for inlining = 54, calls inlined = 97, statements flattened = 726 [2022-02-21 04:16:20,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:20,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:20,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:20,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:20,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:20" (1/1) ... [2022-02-21 04:16:20,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:20" (1/1) ... [2022-02-21 04:16:20,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:20" (1/1) ... [2022-02-21 04:16:20,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:20" (1/1) ... [2022-02-21 04:16:20,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:20" (1/1) ... [2022-02-21 04:16:20,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:20" (1/1) ... [2022-02-21 04:16:20,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:20" (1/1) ... [2022-02-21 04:16:20,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:20,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:20,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:20,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:20,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:20" (1/1) ... [2022-02-21 04:16:20,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:20,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:20,564 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 04:16:20,566 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 04:16:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:20,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:20,672 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:20,674 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:21,155 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:21,163 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:21,163 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:21,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:21 BoogieIcfgContainer [2022-02-21 04:16:21,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:21,166 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:21,166 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:21,169 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:21,170 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:21,170 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:20" (1/3) ... [2022-02-21 04:16:21,171 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3bb604c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:21, skipping insertion in model container [2022-02-21 04:16:21,171 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:21,171 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:20" (2/3) ... [2022-02-21 04:16:21,171 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3bb604c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:21, skipping insertion in model container [2022-02-21 04:16:21,171 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:21,171 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:21" (3/3) ... [2022-02-21 04:16:21,173 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product46.cil.c [2022-02-21 04:16:21,221 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:21,221 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:21,221 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:21,222 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:21,222 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:21,222 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:21,222 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:21,222 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:21,242 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 185 states, 184 states have (on average 1.3641304347826086) internal successors, (251), 184 states have internal predecessors, (251), 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 04:16:21,314 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2022-02-21 04:16:21,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:21,315 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:21,320 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:21,320 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:21,320 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:21,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 185 states, 184 states have (on average 1.3641304347826086) internal successors, (251), 184 states have internal predecessors, (251), 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 04:16:21,334 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2022-02-21 04:16:21,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:21,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:21,335 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:21,335 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:21,348 INFO L791 eck$LassoCheckResult]: Stem: 171#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 51#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~8#1, main_~tmp~3#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 85#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 179#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 30#L83true main_#t~ret33#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 58#L642true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 153#L616true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 129#L879true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 91#L922-2true [2022-02-21 04:16:21,358 INFO L793 eck$LassoCheckResult]: Loop: 91#L922-2true assume !false; 154#L923true assume test_~splverifierCounter~0#1 < 4; 120#L924true test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 113#L932true assume !(0 != test_~tmp~9#1); 135#L932-2true test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 149#L942true assume !(0 != test_~tmp___0~2#1); 81#L942-2true test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 186#L952true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 158#L860true assume { :end_inline_startSystem } true; 70#L960-2true assume { :begin_inline_timeShift } true; 41#L668true assume !(0 != ~pumpRunning~0); 163#L668-2true assume !(0 != ~systemActive~0); 125#L675-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret47#1, __utac_acc__Specification2_spec__2_#t~ret48#1, __utac_acc__Specification2_spec__2_~tmp~8#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~8#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 109#L504-3true __utac_acc__Specification2_spec__2_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~8#1 := __utac_acc__Specification2_spec__2_#t~ret47#1;havoc __utac_acc__Specification2_spec__2_#t~ret47#1; 63#L890true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8#1);~methAndRunningLastTime~0 := 0; 111#L890-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 116#L685true assume { :end_inline_timeShift } true; 91#L922-2true [2022-02-21 04:16:21,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:21,362 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:16:21,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:21,369 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762821264] [2022-02-21 04:16:21,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:21,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:21,480 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:21,534 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:21,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:21,536 INFO L85 PathProgramCache]: Analyzing trace with hash 445714697, now seen corresponding path program 1 times [2022-02-21 04:16:21,536 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:21,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633049750] [2022-02-21 04:16:21,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:21,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:21,592 INFO L290 TraceCheckUtils]: 0: Hoare triple {191#true} assume !false; {191#true} is VALID [2022-02-21 04:16:21,592 INFO L290 TraceCheckUtils]: 1: Hoare triple {191#true} assume test_~splverifierCounter~0#1 < 4; {191#true} is VALID [2022-02-21 04:16:21,592 INFO L290 TraceCheckUtils]: 2: Hoare triple {191#true} test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; {191#true} is VALID [2022-02-21 04:16:21,592 INFO L290 TraceCheckUtils]: 3: Hoare triple {191#true} assume !(0 != test_~tmp~9#1); {191#true} is VALID [2022-02-21 04:16:21,593 INFO L290 TraceCheckUtils]: 4: Hoare triple {191#true} test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; {191#true} is VALID [2022-02-21 04:16:21,593 INFO L290 TraceCheckUtils]: 5: Hoare triple {191#true} assume !(0 != test_~tmp___0~2#1); {191#true} is VALID [2022-02-21 04:16:21,593 INFO L290 TraceCheckUtils]: 6: Hoare triple {191#true} test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {191#true} is VALID [2022-02-21 04:16:21,593 INFO L290 TraceCheckUtils]: 7: Hoare triple {191#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {193#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:21,594 INFO L290 TraceCheckUtils]: 8: Hoare triple {193#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {193#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:21,594 INFO L290 TraceCheckUtils]: 9: Hoare triple {193#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {193#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:21,595 INFO L290 TraceCheckUtils]: 10: Hoare triple {193#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {193#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:21,595 INFO L290 TraceCheckUtils]: 11: Hoare triple {193#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {192#false} is VALID [2022-02-21 04:16:21,595 INFO L290 TraceCheckUtils]: 12: Hoare triple {192#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret47#1, __utac_acc__Specification2_spec__2_#t~ret48#1, __utac_acc__Specification2_spec__2_~tmp~8#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~8#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; {192#false} is VALID [2022-02-21 04:16:21,595 INFO L290 TraceCheckUtils]: 13: Hoare triple {192#false} __utac_acc__Specification2_spec__2_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~8#1 := __utac_acc__Specification2_spec__2_#t~ret47#1;havoc __utac_acc__Specification2_spec__2_#t~ret47#1; {192#false} is VALID [2022-02-21 04:16:21,595 INFO L290 TraceCheckUtils]: 14: Hoare triple {192#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8#1);~methAndRunningLastTime~0 := 0; {192#false} is VALID [2022-02-21 04:16:21,595 INFO L290 TraceCheckUtils]: 15: Hoare triple {192#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {192#false} is VALID [2022-02-21 04:16:21,596 INFO L290 TraceCheckUtils]: 16: Hoare triple {192#false} assume { :end_inline_timeShift } true; {192#false} is VALID [2022-02-21 04:16:21,596 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 04:16:21,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:21,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633049750] [2022-02-21 04:16:21,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633049750] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:21,597 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:21,597 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:16:21,597 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827811466] [2022-02-21 04:16:21,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:21,602 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:16:21,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:21,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:16:21,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:16:21,629 INFO L87 Difference]: Start difference. First operand has 185 states, 184 states have (on average 1.3641304347826086) internal successors, (251), 184 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:21,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:21,844 INFO L93 Difference]: Finished difference Result 182 states and 238 transitions. [2022-02-21 04:16:21,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:16:21,845 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:21,860 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:21,864 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 238 transitions. [2022-02-21 04:16:21,881 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 115 [2022-02-21 04:16:21,888 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 172 states and 227 transitions. [2022-02-21 04:16:21,888 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 172 [2022-02-21 04:16:21,889 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 172 [2022-02-21 04:16:21,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 172 states and 227 transitions. [2022-02-21 04:16:21,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:21,890 INFO L681 BuchiCegarLoop]: Abstraction has 172 states and 227 transitions. [2022-02-21 04:16:21,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states and 227 transitions. [2022-02-21 04:16:21,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2022-02-21 04:16:21,917 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:21,918 INFO L82 GeneralOperation]: Start isEquivalent. First operand 172 states and 227 transitions. Second operand has 172 states, 172 states have (on average 1.319767441860465) internal successors, (227), 171 states have internal predecessors, (227), 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 04:16:21,919 INFO L74 IsIncluded]: Start isIncluded. First operand 172 states and 227 transitions. Second operand has 172 states, 172 states have (on average 1.319767441860465) internal successors, (227), 171 states have internal predecessors, (227), 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 04:16:21,920 INFO L87 Difference]: Start difference. First operand 172 states and 227 transitions. Second operand has 172 states, 172 states have (on average 1.319767441860465) internal successors, (227), 171 states have internal predecessors, (227), 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 04:16:21,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:21,925 INFO L93 Difference]: Finished difference Result 172 states and 227 transitions. [2022-02-21 04:16:21,925 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 227 transitions. [2022-02-21 04:16:21,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:21,928 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:21,929 INFO L74 IsIncluded]: Start isIncluded. First operand has 172 states, 172 states have (on average 1.319767441860465) internal successors, (227), 171 states have internal predecessors, (227), 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 172 states and 227 transitions. [2022-02-21 04:16:21,932 INFO L87 Difference]: Start difference. First operand has 172 states, 172 states have (on average 1.319767441860465) internal successors, (227), 171 states have internal predecessors, (227), 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 172 states and 227 transitions. [2022-02-21 04:16:21,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:21,940 INFO L93 Difference]: Finished difference Result 172 states and 227 transitions. [2022-02-21 04:16:21,940 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 227 transitions. [2022-02-21 04:16:21,944 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:21,945 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:21,945 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:21,946 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:21,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 172 states have (on average 1.319767441860465) internal successors, (227), 171 states have internal predecessors, (227), 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 04:16:21,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 227 transitions. [2022-02-21 04:16:21,953 INFO L704 BuchiCegarLoop]: Abstraction has 172 states and 227 transitions. [2022-02-21 04:16:21,953 INFO L587 BuchiCegarLoop]: Abstraction has 172 states and 227 transitions. [2022-02-21 04:16:21,954 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:21,954 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 172 states and 227 transitions. [2022-02-21 04:16:21,955 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 115 [2022-02-21 04:16:21,955 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:21,955 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:21,955 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:21,955 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] [2022-02-21 04:16:21,956 INFO L791 eck$LassoCheckResult]: Stem: 545#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 447#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~8#1, main_~tmp~3#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 448#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 491#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 424#L83 main_#t~ret33#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 425#L642 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 458#L616 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 526#L879 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 496#L922-2 [2022-02-21 04:16:21,956 INFO L793 eck$LassoCheckResult]: Loop: 496#L922-2 assume !false; 497#L923 assume test_~splverifierCounter~0#1 < 4; 520#L924 test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 518#L932 assume !(0 != test_~tmp~9#1); 438#L932-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 531#L942 assume !(0 != test_~tmp___0~2#1); 487#L942-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 488#L952 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 390#L960 assume 0 != test_~tmp___1~0#1; 391#L960-2 assume { :begin_inline_timeShift } true; 439#L668 assume !(0 != ~pumpRunning~0); 440#L668-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret35#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 529#L726 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret34#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 530#L700-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 536#L692-3 assume { :end_inline_processEnvironment__wrappee__base } true; 428#L700-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 427#L726-1 assume { :end_inline_processEnvironment } true; 519#L675-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret47#1, __utac_acc__Specification2_spec__2_#t~ret48#1, __utac_acc__Specification2_spec__2_~tmp~8#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~8#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 515#L504-3 __utac_acc__Specification2_spec__2_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~8#1 := __utac_acc__Specification2_spec__2_#t~ret47#1;havoc __utac_acc__Specification2_spec__2_#t~ret47#1; 462#L890 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8#1);~methAndRunningLastTime~0 := 0; 435#L890-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 517#L685 assume { :end_inline_timeShift } true; 496#L922-2 [2022-02-21 04:16:21,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:21,957 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:16:21,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:21,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760495203] [2022-02-21 04:16:21,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:21,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:21,986 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:22,000 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:22,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:22,003 INFO L85 PathProgramCache]: Analyzing trace with hash -461970119, now seen corresponding path program 1 times [2022-02-21 04:16:22,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:22,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095469697] [2022-02-21 04:16:22,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:22,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:22,022 INFO L290 TraceCheckUtils]: 0: Hoare triple {897#true} assume !false; {897#true} is VALID [2022-02-21 04:16:22,022 INFO L290 TraceCheckUtils]: 1: Hoare triple {897#true} assume test_~splverifierCounter~0#1 < 4; {897#true} is VALID [2022-02-21 04:16:22,023 INFO L290 TraceCheckUtils]: 2: Hoare triple {897#true} test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; {897#true} is VALID [2022-02-21 04:16:22,023 INFO L290 TraceCheckUtils]: 3: Hoare triple {897#true} assume !(0 != test_~tmp~9#1); {897#true} is VALID [2022-02-21 04:16:22,023 INFO L290 TraceCheckUtils]: 4: Hoare triple {897#true} test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; {897#true} is VALID [2022-02-21 04:16:22,023 INFO L290 TraceCheckUtils]: 5: Hoare triple {897#true} assume !(0 != test_~tmp___0~2#1); {897#true} is VALID [2022-02-21 04:16:22,023 INFO L290 TraceCheckUtils]: 6: Hoare triple {897#true} test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {897#true} is VALID [2022-02-21 04:16:22,024 INFO L290 TraceCheckUtils]: 7: Hoare triple {897#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; {897#true} is VALID [2022-02-21 04:16:22,024 INFO L290 TraceCheckUtils]: 8: Hoare triple {897#true} assume 0 != test_~tmp___1~0#1; {897#true} is VALID [2022-02-21 04:16:22,024 INFO L290 TraceCheckUtils]: 9: Hoare triple {897#true} assume { :begin_inline_timeShift } true; {897#true} is VALID [2022-02-21 04:16:22,025 INFO L290 TraceCheckUtils]: 10: Hoare triple {897#true} assume !(0 != ~pumpRunning~0); {899#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:22,025 INFO L290 TraceCheckUtils]: 11: Hoare triple {899#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret35#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {899#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:22,025 INFO L290 TraceCheckUtils]: 12: Hoare triple {899#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret34#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; {899#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:22,026 INFO L290 TraceCheckUtils]: 13: Hoare triple {899#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {898#false} is VALID [2022-02-21 04:16:22,026 INFO L290 TraceCheckUtils]: 14: Hoare triple {898#false} assume { :end_inline_processEnvironment__wrappee__base } true; {898#false} is VALID [2022-02-21 04:16:22,026 INFO L290 TraceCheckUtils]: 15: Hoare triple {898#false} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {898#false} is VALID [2022-02-21 04:16:22,026 INFO L290 TraceCheckUtils]: 16: Hoare triple {898#false} assume { :end_inline_processEnvironment } true; {898#false} is VALID [2022-02-21 04:16:22,026 INFO L290 TraceCheckUtils]: 17: Hoare triple {898#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret47#1, __utac_acc__Specification2_spec__2_#t~ret48#1, __utac_acc__Specification2_spec__2_~tmp~8#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~8#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; {898#false} is VALID [2022-02-21 04:16:22,026 INFO L290 TraceCheckUtils]: 18: Hoare triple {898#false} __utac_acc__Specification2_spec__2_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~8#1 := __utac_acc__Specification2_spec__2_#t~ret47#1;havoc __utac_acc__Specification2_spec__2_#t~ret47#1; {898#false} is VALID [2022-02-21 04:16:22,026 INFO L290 TraceCheckUtils]: 19: Hoare triple {898#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8#1);~methAndRunningLastTime~0 := 0; {898#false} is VALID [2022-02-21 04:16:22,026 INFO L290 TraceCheckUtils]: 20: Hoare triple {898#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {898#false} is VALID [2022-02-21 04:16:22,026 INFO L290 TraceCheckUtils]: 21: Hoare triple {898#false} assume { :end_inline_timeShift } true; {898#false} is VALID [2022-02-21 04:16:22,027 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 04:16:22,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:22,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095469697] [2022-02-21 04:16:22,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095469697] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:22,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:22,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:16:22,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164407600] [2022-02-21 04:16:22,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:22,028 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:16:22,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:22,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:16:22,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:16:22,029 INFO L87 Difference]: Start difference. First operand 172 states and 227 transitions. cyclomatic complexity: 57 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) [2022-02-21 04:16:22,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:22,253 INFO L93 Difference]: Finished difference Result 237 states and 302 transitions. [2022-02-21 04:16:22,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:16:22,254 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-21 04:16:22,283 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:22,284 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 237 states and 302 transitions. [2022-02-21 04:16:22,289 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 164 [2022-02-21 04:16:22,295 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 237 states to 237 states and 302 transitions. [2022-02-21 04:16:22,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 237 [2022-02-21 04:16:22,296 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 237 [2022-02-21 04:16:22,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 237 states and 302 transitions. [2022-02-21 04:16:22,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:22,300 INFO L681 BuchiCegarLoop]: Abstraction has 237 states and 302 transitions. [2022-02-21 04:16:22,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states and 302 transitions. [2022-02-21 04:16:22,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2022-02-21 04:16:22,314 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:22,315 INFO L82 GeneralOperation]: Start isEquivalent. First operand 237 states and 302 transitions. Second operand has 237 states, 237 states have (on average 1.2742616033755274) internal successors, (302), 236 states have internal predecessors, (302), 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 04:16:22,315 INFO L74 IsIncluded]: Start isIncluded. First operand 237 states and 302 transitions. Second operand has 237 states, 237 states have (on average 1.2742616033755274) internal successors, (302), 236 states have internal predecessors, (302), 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 04:16:22,316 INFO L87 Difference]: Start difference. First operand 237 states and 302 transitions. Second operand has 237 states, 237 states have (on average 1.2742616033755274) internal successors, (302), 236 states have internal predecessors, (302), 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 04:16:22,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:22,324 INFO L93 Difference]: Finished difference Result 237 states and 302 transitions. [2022-02-21 04:16:22,324 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 302 transitions. [2022-02-21 04:16:22,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:22,325 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:22,325 INFO L74 IsIncluded]: Start isIncluded. First operand has 237 states, 237 states have (on average 1.2742616033755274) internal successors, (302), 236 states have internal predecessors, (302), 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 237 states and 302 transitions. [2022-02-21 04:16:22,326 INFO L87 Difference]: Start difference. First operand has 237 states, 237 states have (on average 1.2742616033755274) internal successors, (302), 236 states have internal predecessors, (302), 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 237 states and 302 transitions. [2022-02-21 04:16:22,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:22,334 INFO L93 Difference]: Finished difference Result 237 states and 302 transitions. [2022-02-21 04:16:22,334 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 302 transitions. [2022-02-21 04:16:22,335 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:22,335 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:22,335 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:22,335 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:22,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 237 states have (on average 1.2742616033755274) internal successors, (302), 236 states have internal predecessors, (302), 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 04:16:22,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 302 transitions. [2022-02-21 04:16:22,344 INFO L704 BuchiCegarLoop]: Abstraction has 237 states and 302 transitions. [2022-02-21 04:16:22,344 INFO L587 BuchiCegarLoop]: Abstraction has 237 states and 302 transitions. [2022-02-21 04:16:22,344 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:22,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 237 states and 302 transitions. [2022-02-21 04:16:22,345 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 164 [2022-02-21 04:16:22,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:22,346 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:22,346 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:22,346 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] [2022-02-21 04:16:22,347 INFO L791 eck$LassoCheckResult]: Stem: 1318#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 1213#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~8#1, main_~tmp~3#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1214#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1256#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1186#L83 main_#t~ret33#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 1187#L642 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1224#L616 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1294#L879 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1261#L922-2 [2022-02-21 04:16:22,347 INFO L793 eck$LassoCheckResult]: Loop: 1261#L922-2 assume !false; 1262#L923 assume test_~splverifierCounter~0#1 < 4; 1288#L924 test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 1285#L932 assume !(0 != test_~tmp~9#1); 1198#L932-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 1300#L942 assume !(0 != test_~tmp___0~2#1); 1251#L942-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1252#L952 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1313#L860 assume { :end_inline_startSystem } true; 1152#L960-2 assume { :begin_inline_timeShift } true; 1199#L668 assume !(0 != ~pumpRunning~0); 1200#L668-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret35#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1298#L726 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret34#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 1299#L700-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1; 1305#L544-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1; 1308#L549-1 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 1310#L845-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1274#L845-5 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 1238#L851-1 processEnvironment__wrappee__methaneQuery_#t~ret34#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~4#1 := processEnvironment__wrappee__methaneQuery_#t~ret34#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret34#1; 1164#L704-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1166#L692-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1191#L700-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1189#L726-1 assume { :end_inline_processEnvironment } true; 1347#L675-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret47#1, __utac_acc__Specification2_spec__2_#t~ret48#1, __utac_acc__Specification2_spec__2_~tmp~8#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~8#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 1346#L504-3 __utac_acc__Specification2_spec__2_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~8#1 := __utac_acc__Specification2_spec__2_#t~ret47#1;havoc __utac_acc__Specification2_spec__2_#t~ret47#1; 1344#L890 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8#1);~methAndRunningLastTime~0 := 0; 1283#L890-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1284#L685 assume { :end_inline_timeShift } true; 1261#L922-2 [2022-02-21 04:16:22,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:22,348 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:16:22,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:22,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265730467] [2022-02-21 04:16:22,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:22,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:22,360 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:22,371 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:22,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:22,371 INFO L85 PathProgramCache]: Analyzing trace with hash -547317710, now seen corresponding path program 1 times [2022-02-21 04:16:22,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:22,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565828644] [2022-02-21 04:16:22,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:22,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:22,384 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:22,392 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:22,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:22,393 INFO L85 PathProgramCache]: Analyzing trace with hash 451752859, now seen corresponding path program 1 times [2022-02-21 04:16:22,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:22,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278006278] [2022-02-21 04:16:22,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:22,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:22,416 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:22,431 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:25,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:25 BoogieIcfgContainer [2022-02-21 04:16:25,280 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:25,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:25,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:25,281 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:25,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:21" (3/4) ... [2022-02-21 04:16:25,283 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:25,341 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:25,342 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:25,343 INFO L158 Benchmark]: Toolchain (without parser) took 5293.75ms. Allocated memory was 88.1MB in the beginning and 157.3MB in the end (delta: 69.2MB). Free memory was 52.9MB in the beginning and 65.9MB in the end (delta: -13.0MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:25,343 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 88.1MB. Free memory was 58.6MB in the beginning and 58.6MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:25,343 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.27ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 52.7MB in the beginning and 71.5MB in the end (delta: -18.8MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-02-21 04:16:25,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.49ms. Allocated memory is still 107.0MB. Free memory was 71.5MB in the beginning and 67.0MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:25,344 INFO L158 Benchmark]: Boogie Preprocessor took 31.36ms. Allocated memory is still 107.0MB. Free memory was 66.7MB in the beginning and 64.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:25,344 INFO L158 Benchmark]: RCFGBuilder took 626.53ms. Allocated memory is still 107.0MB. Free memory was 64.0MB in the beginning and 61.8MB in the end (delta: 2.2MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2022-02-21 04:16:25,344 INFO L158 Benchmark]: BuchiAutomizer took 4114.20ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 61.8MB in the beginning and 69.0MB in the end (delta: -7.1MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:25,345 INFO L158 Benchmark]: Witness Printer took 61.33ms. Allocated memory is still 157.3MB. Free memory was 69.0MB in the beginning and 65.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:25,346 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 0.20ms. Allocated memory is still 88.1MB. Free memory was 58.6MB in the beginning and 58.6MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 382.27ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 52.7MB in the beginning and 71.5MB in the end (delta: -18.8MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.49ms. Allocated memory is still 107.0MB. Free memory was 71.5MB in the beginning and 67.0MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.36ms. Allocated memory is still 107.0MB. Free memory was 66.7MB in the beginning and 64.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 626.53ms. Allocated memory is still 107.0MB. Free memory was 64.0MB in the beginning and 61.8MB in the end (delta: 2.2MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4114.20ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 61.8MB in the beginning and 69.0MB in the end (delta: -7.1MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. * Witness Printer took 61.33ms. Allocated memory is still 157.3MB. Free memory was 69.0MB in the beginning and 65.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 237 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 237 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 402 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 402 mSDsluCounter, 546 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 447 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 922]: 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@669d32be=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1551292e=29, tmp___0=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@719f0041=0, head=0, pumpRunning=0, retValue_acc=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@161c9ea8=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1dd5a11f=0, tmp=0, methaneLevelCritical=0, tmp=0, \result=0, retValue_acc=1, retValue_acc=0, \result=1, tmp=1, retValue_acc=0, \result=1, retValue_acc=1, tmp___2=29, methAndRunningLastTime=0, tmp=1, cleanupTimeShifts=4, \result=0, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5de99562=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22575bc5=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7dd49ca8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44ea37a2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6dd4330f=0, \result=0, tmp___0=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 922]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L461] int waterLevel = 1; [L462] int methaneLevelCritical = 0; [L555] int cleanupTimeShifts = 4; [L660] int pumpRunning = 0; [L661] int systemActive = 1; [L873] int methAndRunningLastTime ; [L633] int retValue_acc ; [L634] int tmp ; [L638] FCALL select_helpers() [L639] FCALL select_features() [L640] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L640] RET, EXPR valid_product() [L640] tmp = valid_product() [L642] COND TRUE \read(tmp) [L644] FCALL setup() [L645] CALL runTest() [L626] CALL __utac_acc__Specification2_spec__1() [L878] methAndRunningLastTime = 0 [L626] RET __utac_acc__Specification2_spec__1() [L627] CALL test() [L913] int splverifierCounter ; [L914] int tmp ; [L915] int tmp___0 ; [L916] int tmp___1 ; [L917] int tmp___2 ; [L920] splverifierCounter = 0 Loop: [L922] COND TRUE 1 [L924] COND TRUE splverifierCounter < 4 [L930] tmp = __VERIFIER_nondet_int() [L932] COND FALSE !(\read(tmp)) [L940] tmp___0 = __VERIFIER_nondet_int() [L942] COND FALSE !(\read(tmp___0)) [L950] tmp___2 = __VERIFIER_nondet_int() [L952] COND TRUE \read(tmp___2) [L954] CALL startSystem() [L859] systemActive = 1 [L954] RET startSystem() [L967] CALL timeShift() [L668] COND FALSE !(\read(pumpRunning)) [L675] COND TRUE \read(systemActive) [L677] CALL processEnvironment() [L723] int tmp ; [L726] COND FALSE !(\read(pumpRunning)) [L741] CALL processEnvironment__wrappee__methaneQuery() [L697] int tmp ; [L700] COND TRUE ! pumpRunning [L702] CALL, EXPR isHighWaterLevel() [L837] int retValue_acc ; [L838] int tmp ; [L839] int tmp___0 ; [L843] CALL, EXPR isHighWaterSensorDry() [L541] int retValue_acc ; [L544] COND TRUE waterLevel < 2 [L545] retValue_acc = 1 [L546] return (retValue_acc); [L843] RET, EXPR isHighWaterSensorDry() [L843] tmp = isHighWaterSensorDry() [L845] COND TRUE \read(tmp) [L846] tmp___0 = 0 [L850] retValue_acc = tmp___0 [L851] return (retValue_acc); [L702] RET, EXPR isHighWaterLevel() [L702] tmp = isHighWaterLevel() [L704] COND FALSE !(\read(tmp)) [L710] FCALL processEnvironment__wrappee__base() [L741] RET processEnvironment__wrappee__methaneQuery() [L677] RET processEnvironment() [L683] CALL __utac_acc__Specification2_spec__2() [L883] int tmp ; [L884] int tmp___0 ; [L888] CALL, EXPR isMethaneLevelCritical() [L500] int retValue_acc ; [L503] retValue_acc = methaneLevelCritical [L504] return (retValue_acc); [L888] RET, EXPR isMethaneLevelCritical() [L888] tmp = isMethaneLevelCritical() [L890] COND FALSE !(\read(tmp)) [L906] methAndRunningLastTime = 0 [L683] RET __utac_acc__Specification2_spec__2() [L967] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:25,391 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)