./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product62.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_spec4_product62.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 894b9126919d6af09c0902d1c20b8183acfd3589fe20590a119ca487cf6e7a3f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:10,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:10,200 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:10,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:10,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:10,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:10,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:10,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:10,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:10,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:10,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:10,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:10,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:10,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:10,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:10,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:10,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:10,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:10,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:10,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:10,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:10,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:10,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:10,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:10,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:10,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:10,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:10,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:10,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:10,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:10,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:10,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:10,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:10,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:10,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:10,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:10,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:10,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:10,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:10,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:10,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:10,300 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:10,334 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:10,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:10,335 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:10,335 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:10,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:10,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:10,337 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:10,337 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:10,338 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:10,338 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:10,338 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:10,339 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:10,339 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:10,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:10,339 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:10,339 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:10,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:10,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:10,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:10,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:10,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:10,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:10,341 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:10,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:10,341 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:10,341 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:10,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:10,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:10,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:10,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:10,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:10,344 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:10,344 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 894b9126919d6af09c0902d1c20b8183acfd3589fe20590a119ca487cf6e7a3f [2022-02-21 04:18:10,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:10,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:10,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:10,657 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:10,658 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:10,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product62.cil.c [2022-02-21 04:18:10,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51b388e9e/37e800c9a1c34b7f93f866b5fe6d8d8f/FLAG2cc68a033 [2022-02-21 04:18:11,203 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:11,203 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product62.cil.c [2022-02-21 04:18:11,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51b388e9e/37e800c9a1c34b7f93f866b5fe6d8d8f/FLAG2cc68a033 [2022-02-21 04:18:11,559 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51b388e9e/37e800c9a1c34b7f93f866b5fe6d8d8f [2022-02-21 04:18:11,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:11,570 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:11,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:11,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:11,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:11,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d838f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11, skipping insertion in model container [2022-02-21 04:18:11,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:11,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:11,764 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_spec4_product62.cil.c[1605,1618] [2022-02-21 04:18:11,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:11,964 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:11,972 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_spec4_product62.cil.c[1605,1618] [2022-02-21 04:18:12,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:12,077 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:12,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:12 WrapperNode [2022-02-21 04:18:12,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:12,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:12,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:12,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:12,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:12" (1/1) ... [2022-02-21 04:18:12,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:12" (1/1) ... [2022-02-21 04:18:12,219 INFO L137 Inliner]: procedures = 58, calls = 161, calls flagged for inlining = 58, calls inlined = 174, statements flattened = 1256 [2022-02-21 04:18:12,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:12,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:12,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:12,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:12,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:12" (1/1) ... [2022-02-21 04:18:12,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:12" (1/1) ... [2022-02-21 04:18:12,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:12" (1/1) ... [2022-02-21 04:18:12,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:12" (1/1) ... [2022-02-21 04:18:12,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:12" (1/1) ... [2022-02-21 04:18:12,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:12" (1/1) ... [2022-02-21 04:18:12,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:12" (1/1) ... [2022-02-21 04:18:12,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:12,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:12,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:12,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:12,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:12" (1/1) ... [2022-02-21 04:18:12,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:12,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:12,337 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 04:18:12,345 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 04:18:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:12,418 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:12,419 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:13,004 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:13,033 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:13,034 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:13,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:13 BoogieIcfgContainer [2022-02-21 04:18:13,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:13,036 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:13,036 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:13,039 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:13,039 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:13,039 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:11" (1/3) ... [2022-02-21 04:18:13,040 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c6d27c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:13, skipping insertion in model container [2022-02-21 04:18:13,040 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:13,041 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:12" (2/3) ... [2022-02-21 04:18:13,041 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c6d27c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:13, skipping insertion in model container [2022-02-21 04:18:13,041 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:13,041 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:13" (3/3) ... [2022-02-21 04:18:13,042 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product62.cil.c [2022-02-21 04:18:13,071 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:13,072 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:13,072 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:13,072 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:13,072 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:13,072 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:13,072 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:13,072 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:13,093 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 319 states, 318 states have (on average 1.3522012578616351) internal successors, (430), 318 states have internal predecessors, (430), 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 04:18:13,158 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 209 [2022-02-21 04:18:13,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:13,160 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:13,165 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:13,166 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 04:18:13,166 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:13,169 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 319 states, 318 states have (on average 1.3522012578616351) internal successors, (430), 318 states have internal predecessors, (430), 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 04:18:13,191 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 209 [2022-02-21 04:18:13,191 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:13,192 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:13,192 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:13,192 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 04:18:13,196 INFO L791 eck$LassoCheckResult]: Stem: 307#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 209#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 33#L441true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 25#L434true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 88#L449true main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 229#L536true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 126#L513true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 139#L74-2true [2022-02-21 04:18:13,196 INFO L793 eck$LassoCheckResult]: Loop: 139#L74-2true assume !false; 223#L75true assume test_~splverifierCounter~0#1 < 4; 85#L76true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 150#L84true assume !(0 != test_~tmp~0#1); 38#L84-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 151#L94true assume !(0 != test_~tmp___0~0#1); 136#L94-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 27#L104true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 190#L385true assume { :end_inline_startSystem } true; 162#L112-2true assume { :begin_inline_timeShift } true; 42#L148true assume !(0 != ~pumpRunning~0); 53#L148-2true assume !(0 != ~systemActive~0); 74#L155-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_#t~ret24#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 19#L991true __utac_acc__Specification4_spec__1_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret23#1;havoc __utac_acc__Specification4_spec__1_#t~ret23#1; 301#L398true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 46#L398-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 187#L165true assume { :end_inline_timeShift } true; 139#L74-2true [2022-02-21 04:18:13,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:13,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:18:13,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:13,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657827678] [2022-02-21 04:18:13,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:13,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:13,328 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:13,389 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:13,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:13,395 INFO L85 PathProgramCache]: Analyzing trace with hash -490593279, now seen corresponding path program 1 times [2022-02-21 04:18:13,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:13,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264801594] [2022-02-21 04:18:13,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:13,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:13,474 INFO L290 TraceCheckUtils]: 0: Hoare triple {325#true} assume !false; {325#true} is VALID [2022-02-21 04:18:13,474 INFO L290 TraceCheckUtils]: 1: Hoare triple {325#true} assume test_~splverifierCounter~0#1 < 4; {325#true} is VALID [2022-02-21 04:18:13,475 INFO L290 TraceCheckUtils]: 2: Hoare triple {325#true} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {325#true} is VALID [2022-02-21 04:18:13,475 INFO L290 TraceCheckUtils]: 3: Hoare triple {325#true} assume !(0 != test_~tmp~0#1); {325#true} is VALID [2022-02-21 04:18:13,475 INFO L290 TraceCheckUtils]: 4: Hoare triple {325#true} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {325#true} is VALID [2022-02-21 04:18:13,475 INFO L290 TraceCheckUtils]: 5: Hoare triple {325#true} assume !(0 != test_~tmp___0~0#1); {325#true} is VALID [2022-02-21 04:18:13,475 INFO L290 TraceCheckUtils]: 6: Hoare triple {325#true} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {325#true} is VALID [2022-02-21 04:18:13,477 INFO L290 TraceCheckUtils]: 7: Hoare triple {325#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {327#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:13,477 INFO L290 TraceCheckUtils]: 8: Hoare triple {327#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {327#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:13,478 INFO L290 TraceCheckUtils]: 9: Hoare triple {327#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {327#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:13,478 INFO L290 TraceCheckUtils]: 10: Hoare triple {327#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {327#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:13,479 INFO L290 TraceCheckUtils]: 11: Hoare triple {327#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {326#false} is VALID [2022-02-21 04:18:13,479 INFO L290 TraceCheckUtils]: 12: Hoare triple {326#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_#t~ret24#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; {326#false} is VALID [2022-02-21 04:18:13,479 INFO L290 TraceCheckUtils]: 13: Hoare triple {326#false} __utac_acc__Specification4_spec__1_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret23#1;havoc __utac_acc__Specification4_spec__1_#t~ret23#1; {326#false} is VALID [2022-02-21 04:18:13,479 INFO L290 TraceCheckUtils]: 14: Hoare triple {326#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); {326#false} is VALID [2022-02-21 04:18:13,479 INFO L290 TraceCheckUtils]: 15: Hoare triple {326#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {326#false} is VALID [2022-02-21 04:18:13,480 INFO L290 TraceCheckUtils]: 16: Hoare triple {326#false} assume { :end_inline_timeShift } true; {326#false} is VALID [2022-02-21 04:18:13,480 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 04:18:13,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:13,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264801594] [2022-02-21 04:18:13,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264801594] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:13,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:13,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:13,482 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898651089] [2022-02-21 04:18:13,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:13,491 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:13,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:13,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:13,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:13,522 INFO L87 Difference]: Start difference. First operand has 319 states, 318 states have (on average 1.3522012578616351) internal successors, (430), 318 states have internal predecessors, (430), 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 04:18:13,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:13,884 INFO L93 Difference]: Finished difference Result 316 states and 417 transitions. [2022-02-21 04:18:13,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:13,886 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 04:18:13,902 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 04:18:13,906 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 316 states and 417 transitions. [2022-02-21 04:18:13,916 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 205 [2022-02-21 04:18:13,929 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 316 states to 306 states and 406 transitions. [2022-02-21 04:18:13,930 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 306 [2022-02-21 04:18:13,931 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 306 [2022-02-21 04:18:13,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 306 states and 406 transitions. [2022-02-21 04:18:13,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:13,932 INFO L681 BuchiCegarLoop]: Abstraction has 306 states and 406 transitions. [2022-02-21 04:18:13,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states and 406 transitions. [2022-02-21 04:18:13,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2022-02-21 04:18:13,959 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:13,961 INFO L82 GeneralOperation]: Start isEquivalent. First operand 306 states and 406 transitions. Second operand has 306 states, 306 states have (on average 1.326797385620915) internal successors, (406), 305 states have internal predecessors, (406), 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 04:18:13,962 INFO L74 IsIncluded]: Start isIncluded. First operand 306 states and 406 transitions. Second operand has 306 states, 306 states have (on average 1.326797385620915) internal successors, (406), 305 states have internal predecessors, (406), 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 04:18:13,963 INFO L87 Difference]: Start difference. First operand 306 states and 406 transitions. Second operand has 306 states, 306 states have (on average 1.326797385620915) internal successors, (406), 305 states have internal predecessors, (406), 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 04:18:13,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:13,977 INFO L93 Difference]: Finished difference Result 306 states and 406 transitions. [2022-02-21 04:18:13,978 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 406 transitions. [2022-02-21 04:18:13,984 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:13,985 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:13,986 INFO L74 IsIncluded]: Start isIncluded. First operand has 306 states, 306 states have (on average 1.326797385620915) internal successors, (406), 305 states have internal predecessors, (406), 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 306 states and 406 transitions. [2022-02-21 04:18:13,988 INFO L87 Difference]: Start difference. First operand has 306 states, 306 states have (on average 1.326797385620915) internal successors, (406), 305 states have internal predecessors, (406), 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 306 states and 406 transitions. [2022-02-21 04:18:13,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:13,995 INFO L93 Difference]: Finished difference Result 306 states and 406 transitions. [2022-02-21 04:18:13,996 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 406 transitions. [2022-02-21 04:18:13,997 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:13,997 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:13,997 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:13,997 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:13,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 306 states have (on average 1.326797385620915) internal successors, (406), 305 states have internal predecessors, (406), 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 04:18:14,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 406 transitions. [2022-02-21 04:18:14,018 INFO L704 BuchiCegarLoop]: Abstraction has 306 states and 406 transitions. [2022-02-21 04:18:14,018 INFO L587 BuchiCegarLoop]: Abstraction has 306 states and 406 transitions. [2022-02-21 04:18:14,018 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:14,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 306 states and 406 transitions. [2022-02-21 04:18:14,020 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 205 [2022-02-21 04:18:14,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:14,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:14,020 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:14,020 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] [2022-02-21 04:18:14,020 INFO L791 eck$LassoCheckResult]: Stem: 949#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 919#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 708#L441 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 694#L434 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 695#L449 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 795#L536 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 845#L513 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 846#L74-2 [2022-02-21 04:18:14,031 INFO L793 eck$LassoCheckResult]: Loop: 846#L74-2 assume !false; 861#L75 assume test_~splverifierCounter~0#1 < 4; 790#L76 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 791#L84 assume !(0 != test_~tmp~0#1); 716#L84-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 717#L94 assume !(0 != test_~tmp___0~0#1); 723#L94-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 698#L104 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 699#L112 assume 0 != test_~tmp___1~0#1; 882#L112-2 assume { :begin_inline_timeShift } true; 726#L148 assume !(0 != ~pumpRunning~0); 727#L148-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 743#L232 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 891#L959 isMethaneAlarm_#t~ret12#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret12#1;havoc isMethaneAlarm_#t~ret12#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; 945#L293 processEnvironment_#t~ret10#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret10#1;havoc processEnvironment_#t~ret10#1; 927#L236 assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 928#L283 assume { :end_inline_deactivatePump } true; 833#L232-1 assume { :end_inline_processEnvironment } true; 769#L155-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_#t~ret24#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 679#L991 __utac_acc__Specification4_spec__1_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret23#1;havoc __utac_acc__Specification4_spec__1_#t~ret23#1; 680#L398 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 732#L398-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 733#L165 assume { :end_inline_timeShift } true; 846#L74-2 [2022-02-21 04:18:14,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:14,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:18:14,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:14,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972556214] [2022-02-21 04:18:14,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:14,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:14,047 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:14,061 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:14,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:14,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1940284747, now seen corresponding path program 1 times [2022-02-21 04:18:14,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:14,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018595963] [2022-02-21 04:18:14,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:14,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:14,077 INFO L290 TraceCheckUtils]: 0: Hoare triple {1567#true} assume !false; {1567#true} is VALID [2022-02-21 04:18:14,077 INFO L290 TraceCheckUtils]: 1: Hoare triple {1567#true} assume test_~splverifierCounter~0#1 < 4; {1567#true} is VALID [2022-02-21 04:18:14,077 INFO L290 TraceCheckUtils]: 2: Hoare triple {1567#true} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {1567#true} is VALID [2022-02-21 04:18:14,078 INFO L290 TraceCheckUtils]: 3: Hoare triple {1567#true} assume !(0 != test_~tmp~0#1); {1567#true} is VALID [2022-02-21 04:18:14,078 INFO L290 TraceCheckUtils]: 4: Hoare triple {1567#true} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {1567#true} is VALID [2022-02-21 04:18:14,078 INFO L290 TraceCheckUtils]: 5: Hoare triple {1567#true} assume !(0 != test_~tmp___0~0#1); {1567#true} is VALID [2022-02-21 04:18:14,078 INFO L290 TraceCheckUtils]: 6: Hoare triple {1567#true} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {1567#true} is VALID [2022-02-21 04:18:14,078 INFO L290 TraceCheckUtils]: 7: Hoare triple {1567#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {1567#true} is VALID [2022-02-21 04:18:14,078 INFO L290 TraceCheckUtils]: 8: Hoare triple {1567#true} assume 0 != test_~tmp___1~0#1; {1567#true} is VALID [2022-02-21 04:18:14,079 INFO L290 TraceCheckUtils]: 9: Hoare triple {1567#true} assume { :begin_inline_timeShift } true; {1567#true} is VALID [2022-02-21 04:18:14,079 INFO L290 TraceCheckUtils]: 10: Hoare triple {1567#true} assume !(0 != ~pumpRunning~0); {1569#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:14,079 INFO L290 TraceCheckUtils]: 11: Hoare triple {1569#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {1569#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:14,080 INFO L290 TraceCheckUtils]: 12: Hoare triple {1569#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; {1568#false} is VALID [2022-02-21 04:18:14,080 INFO L290 TraceCheckUtils]: 13: Hoare triple {1568#false} isMethaneAlarm_#t~ret12#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret12#1;havoc isMethaneAlarm_#t~ret12#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; {1568#false} is VALID [2022-02-21 04:18:14,080 INFO L290 TraceCheckUtils]: 14: Hoare triple {1568#false} processEnvironment_#t~ret10#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret10#1;havoc processEnvironment_#t~ret10#1; {1568#false} is VALID [2022-02-21 04:18:14,080 INFO L290 TraceCheckUtils]: 15: Hoare triple {1568#false} assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {1568#false} is VALID [2022-02-21 04:18:14,081 INFO L290 TraceCheckUtils]: 16: Hoare triple {1568#false} assume { :end_inline_deactivatePump } true; {1568#false} is VALID [2022-02-21 04:18:14,081 INFO L290 TraceCheckUtils]: 17: Hoare triple {1568#false} assume { :end_inline_processEnvironment } true; {1568#false} is VALID [2022-02-21 04:18:14,081 INFO L290 TraceCheckUtils]: 18: Hoare triple {1568#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_#t~ret24#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; {1568#false} is VALID [2022-02-21 04:18:14,081 INFO L290 TraceCheckUtils]: 19: Hoare triple {1568#false} __utac_acc__Specification4_spec__1_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret23#1;havoc __utac_acc__Specification4_spec__1_#t~ret23#1; {1568#false} is VALID [2022-02-21 04:18:14,082 INFO L290 TraceCheckUtils]: 20: Hoare triple {1568#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); {1568#false} is VALID [2022-02-21 04:18:14,082 INFO L290 TraceCheckUtils]: 21: Hoare triple {1568#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {1568#false} is VALID [2022-02-21 04:18:14,082 INFO L290 TraceCheckUtils]: 22: Hoare triple {1568#false} assume { :end_inline_timeShift } true; {1568#false} is VALID [2022-02-21 04:18:14,082 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 04:18:14,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:14,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018595963] [2022-02-21 04:18:14,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018595963] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:14,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:14,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:14,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232420260] [2022-02-21 04:18:14,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:14,084 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:14,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:14,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:14,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:14,085 INFO L87 Difference]: Start difference. First operand 306 states and 406 transitions. cyclomatic complexity: 102 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 04:18:14,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:14,393 INFO L93 Difference]: Finished difference Result 314 states and 394 transitions. [2022-02-21 04:18:14,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:14,393 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 04:18:14,410 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:14,411 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 314 states and 394 transitions. [2022-02-21 04:18:14,420 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 216 [2022-02-21 04:18:14,425 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 314 states to 314 states and 394 transitions. [2022-02-21 04:18:14,426 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 314 [2022-02-21 04:18:14,426 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 314 [2022-02-21 04:18:14,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 314 states and 394 transitions. [2022-02-21 04:18:14,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:14,429 INFO L681 BuchiCegarLoop]: Abstraction has 314 states and 394 transitions. [2022-02-21 04:18:14,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states and 394 transitions. [2022-02-21 04:18:14,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2022-02-21 04:18:14,447 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:14,448 INFO L82 GeneralOperation]: Start isEquivalent. First operand 314 states and 394 transitions. Second operand has 314 states, 314 states have (on average 1.2547770700636942) internal successors, (394), 313 states have internal predecessors, (394), 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 04:18:14,449 INFO L74 IsIncluded]: Start isIncluded. First operand 314 states and 394 transitions. Second operand has 314 states, 314 states have (on average 1.2547770700636942) internal successors, (394), 313 states have internal predecessors, (394), 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 04:18:14,449 INFO L87 Difference]: Start difference. First operand 314 states and 394 transitions. Second operand has 314 states, 314 states have (on average 1.2547770700636942) internal successors, (394), 313 states have internal predecessors, (394), 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 04:18:14,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:14,457 INFO L93 Difference]: Finished difference Result 314 states and 394 transitions. [2022-02-21 04:18:14,457 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 394 transitions. [2022-02-21 04:18:14,457 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:14,458 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:14,458 INFO L74 IsIncluded]: Start isIncluded. First operand has 314 states, 314 states have (on average 1.2547770700636942) internal successors, (394), 313 states have internal predecessors, (394), 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 314 states and 394 transitions. [2022-02-21 04:18:14,459 INFO L87 Difference]: Start difference. First operand has 314 states, 314 states have (on average 1.2547770700636942) internal successors, (394), 313 states have internal predecessors, (394), 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 314 states and 394 transitions. [2022-02-21 04:18:14,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:14,467 INFO L93 Difference]: Finished difference Result 314 states and 394 transitions. [2022-02-21 04:18:14,467 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 394 transitions. [2022-02-21 04:18:14,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:14,468 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:14,468 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:14,468 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:14,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 314 states have (on average 1.2547770700636942) internal successors, (394), 313 states have internal predecessors, (394), 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 04:18:14,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 394 transitions. [2022-02-21 04:18:14,476 INFO L704 BuchiCegarLoop]: Abstraction has 314 states and 394 transitions. [2022-02-21 04:18:14,476 INFO L587 BuchiCegarLoop]: Abstraction has 314 states and 394 transitions. [2022-02-21 04:18:14,477 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:14,477 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 314 states and 394 transitions. [2022-02-21 04:18:14,478 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 216 [2022-02-21 04:18:14,478 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:14,478 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:14,479 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:14,479 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:14,479 INFO L791 eck$LassoCheckResult]: Stem: 2133#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2100#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 1931#L441 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1921#L434 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1922#L449 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 1992#L536 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 2036#L513 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2037#L74-2 [2022-02-21 04:18:14,480 INFO L793 eck$LassoCheckResult]: Loop: 2037#L74-2 assume !false; 2049#L75 assume test_~splverifierCounter~0#1 < 4; 1984#L76 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1985#L84 assume !(0 != test_~tmp~0#1); 1937#L84-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1938#L94 assume !(0 != test_~tmp___0~0#1); 1944#L94-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1926#L104 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 1927#L112 assume 0 != test_~tmp___1~0#1; 2070#L112-2 assume { :begin_inline_timeShift } true; 1945#L148 assume !(0 != ~pumpRunning~0); 1946#L148-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1956#L232 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret9#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; 1993#L206-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1976#L180-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 1977#L999-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 2005#L1004-3 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 2000#L351-9 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2001#L351-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2122#L357-3 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 2123#L184-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2074#L172-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1892#L180-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2024#L206-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2025#L232-1 assume { :end_inline_processEnvironment } true; 1972#L155-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_#t~ret24#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 1911#L991 __utac_acc__Specification4_spec__1_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret23#1;havoc __utac_acc__Specification4_spec__1_#t~ret23#1; 1912#L398 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 1949#L398-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1950#L165 assume { :end_inline_timeShift } true; 2037#L74-2 [2022-02-21 04:18:14,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:14,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:18:14,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:14,481 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091294324] [2022-02-21 04:18:14,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:14,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:14,494 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:14,509 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:14,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:14,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1364401542, now seen corresponding path program 1 times [2022-02-21 04:18:14,510 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:14,510 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481455365] [2022-02-21 04:18:14,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:14,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:14,523 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:14,533 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:14,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:14,534 INFO L85 PathProgramCache]: Analyzing trace with hash -967210690, now seen corresponding path program 1 times [2022-02-21 04:18:14,534 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:14,535 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074896249] [2022-02-21 04:18:14,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:14,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:14,551 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:14,569 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:17,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:17 BoogieIcfgContainer [2022-02-21 04:18:17,304 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:17,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:17,304 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:17,305 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:17,305 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:13" (3/4) ... [2022-02-21 04:18:17,309 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:17,350 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:17,350 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:17,352 INFO L158 Benchmark]: Toolchain (without parser) took 5781.29ms. Allocated memory was 83.9MB in the beginning and 199.2MB in the end (delta: 115.3MB). Free memory was 50.4MB in the beginning and 104.4MB in the end (delta: -54.0MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:17,352 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory was 53.5MB in the beginning and 53.5MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:17,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 507.15ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 50.1MB in the beginning and 82.1MB in the end (delta: -31.9MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:17,353 INFO L158 Benchmark]: Boogie Procedure Inliner took 140.16ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 75.0MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:18:17,353 INFO L158 Benchmark]: Boogie Preprocessor took 76.87ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 71.2MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:17,353 INFO L158 Benchmark]: RCFGBuilder took 738.30ms. Allocated memory is still 117.4MB. Free memory was 71.2MB in the beginning and 89.4MB in the end (delta: -18.3MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2022-02-21 04:18:17,354 INFO L158 Benchmark]: BuchiAutomizer took 4267.70ms. Allocated memory was 117.4MB in the beginning and 199.2MB in the end (delta: 81.8MB). Free memory was 89.4MB in the beginning and 107.4MB in the end (delta: -18.0MB). Peak memory consumption was 98.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:17,354 INFO L158 Benchmark]: Witness Printer took 46.18ms. Allocated memory is still 199.2MB. Free memory was 107.4MB in the beginning and 104.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:17,356 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 0.21ms. Allocated memory is still 83.9MB. Free memory was 53.5MB in the beginning and 53.5MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 507.15ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 50.1MB in the beginning and 82.1MB in the end (delta: -31.9MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 140.16ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 75.0MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.87ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 71.2MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 738.30ms. Allocated memory is still 117.4MB. Free memory was 71.2MB in the beginning and 89.4MB in the end (delta: -18.3MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 4267.70ms. Allocated memory was 117.4MB in the beginning and 199.2MB in the end (delta: 81.8MB). Free memory was 89.4MB in the beginning and 107.4MB in the end (delta: -18.0MB). Peak memory consumption was 98.3MB. Max. memory is 16.1GB. * Witness Printer took 46.18ms. Allocated memory is still 199.2MB. Free memory was 107.4MB in the beginning and 104.4MB 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 314 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. 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 314 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 635 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 635 mSDsluCounter, 832 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 126 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 706 mSDtfsCounter, 45 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: 74]: 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@21add677=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@366e54f0=0, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@166e129c=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11f2c540=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@223f3031=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5551dc90=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67610668=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ca2bfcd=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2898ecef=0, methaneLevelCritical=0, retValue_acc=1, retValue_acc=1, tmp=1, retValue_acc=1, \result=1, \result=1, retValue_acc=0, tmp=1, tmp=1, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11622836=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75e80d8=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, tmp___1=29, NULL=0, waterLevel=1, systemActive=1, \result=0, retValue_acc=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 74]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L140] int pumpRunning = 0; [L141] int systemActive = 1; [L454] int cleanupTimeShifts = 4; [L719] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L916] int waterLevel = 1; [L917] int methaneLevelCritical = 0; [L527] int retValue_acc ; [L528] int tmp ; [L532] FCALL select_helpers() [L533] FCALL select_features() [L534] CALL, EXPR valid_product() [L445] int retValue_acc ; [L448] retValue_acc = 1 [L449] return (retValue_acc); [L534] RET, EXPR valid_product() [L534] tmp = valid_product() [L536] COND TRUE \read(tmp) [L538] FCALL setup() [L539] CALL runTest() [L521] CALL test() [L65] int splverifierCounter ; [L66] int tmp ; [L67] int tmp___0 ; [L68] int tmp___1 ; [L69] int tmp___2 ; [L72] splverifierCounter = 0 Loop: [L74] COND TRUE 1 [L76] COND TRUE splverifierCounter < 4 [L82] tmp = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp)) [L92] tmp___0 = __VERIFIER_nondet_int() [L94] COND FALSE !(\read(tmp___0)) [L102] tmp___2 = __VERIFIER_nondet_int() [L104] COND FALSE !(\read(tmp___2)) [L110] tmp___1 = __VERIFIER_nondet_int() [L112] COND TRUE \read(tmp___1) [L119] CALL timeShift() [L148] COND FALSE !(\read(pumpRunning)) [L155] COND TRUE \read(systemActive) [L157] CALL processEnvironment() [L229] int tmp ; [L232] COND FALSE !(\read(pumpRunning)) [L247] CALL processEnvironment__wrappee__methaneQuery() [L203] int tmp ; [L206] COND FALSE !(\read(pumpRunning)) [L221] CALL processEnvironment__wrappee__highWaterSensor() [L177] int tmp ; [L180] COND TRUE ! pumpRunning [L182] CALL, EXPR isHighWaterLevel() [L343] int retValue_acc ; [L344] int tmp ; [L345] int tmp___0 ; [L349] CALL, EXPR isHighWaterSensorDry() [L996] int retValue_acc ; [L999] COND TRUE waterLevel < 2 [L1000] retValue_acc = 1 [L1001] return (retValue_acc); [L349] RET, EXPR isHighWaterSensorDry() [L349] tmp = isHighWaterSensorDry() [L351] COND TRUE \read(tmp) [L352] tmp___0 = 0 [L356] retValue_acc = tmp___0 [L357] return (retValue_acc); [L182] RET, EXPR isHighWaterLevel() [L182] tmp = isHighWaterLevel() [L184] COND FALSE !(\read(tmp)) [L190] FCALL processEnvironment__wrappee__base() [L221] RET processEnvironment__wrappee__highWaterSensor() [L247] RET processEnvironment__wrappee__methaneQuery() [L157] RET processEnvironment() [L163] CALL __utac_acc__Specification4_spec__1() [L391] int tmp ; [L392] int tmp___0 ; [L396] CALL, EXPR getWaterLevel() [L987] int retValue_acc ; [L990] retValue_acc = waterLevel [L991] return (retValue_acc); [L396] RET, EXPR getWaterLevel() [L396] tmp = getWaterLevel() [L398] COND FALSE !(tmp == 0) [L163] RET __utac_acc__Specification4_spec__1() [L119] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:17,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)