./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 12ff1c3352fe657a44d5503b0c0550124efd9c84e66a259e2d68c9ba31095791 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:42:09,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:42:09,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:42:09,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:42:09,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:42:09,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:42:09,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:42:09,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:42:09,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:42:09,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:42:09,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:42:09,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:42:09,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:42:09,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:42:09,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:42:09,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:42:09,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:42:09,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:42:09,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:42:09,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:42:09,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:42:09,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:42:09,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:42:09,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:42:09,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:42:09,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:42:09,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:42:09,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:42:09,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:42:09,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:42:09,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:42:09,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:42:09,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:42:09,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:42:09,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:42:09,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:42:09,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:42:09,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:42:09,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:42:09,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:42:09,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:42:09,469 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:42:09,495 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:42:09,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:42:09,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:42:09,497 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:42:09,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:42:09,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:42:09,498 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:42:09,498 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:42:09,499 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:42:09,499 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:42:09,499 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:42:09,500 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:42:09,500 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:42:09,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:42:09,500 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:42:09,500 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:42:09,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:42:09,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:42:09,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:42:09,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:42:09,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:42:09,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:42:09,509 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:42:09,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:42:09,509 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:42:09,510 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:42:09,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:42:09,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:42:09,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:42:09,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:42:09,510 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:42:09,511 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:42:09,512 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12ff1c3352fe657a44d5503b0c0550124efd9c84e66a259e2d68c9ba31095791 [2021-12-28 09:42:09,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:42:09,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:42:09,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:42:09,769 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:42:09,771 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:42:09,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c [2021-12-28 09:42:09,828 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ed2bfbe2/fd91855da5e5419d9d26300bcfa110bf/FLAGebc1b8074 [2021-12-28 09:42:10,221 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:42:10,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c [2021-12-28 09:42:10,230 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ed2bfbe2/fd91855da5e5419d9d26300bcfa110bf/FLAGebc1b8074 [2021-12-28 09:42:10,618 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ed2bfbe2/fd91855da5e5419d9d26300bcfa110bf [2021-12-28 09:42:10,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:42:10,623 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:42:10,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:42:10,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:42:10,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:42:10,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:42:10" (1/1) ... [2021-12-28 09:42:10,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@89e9079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:10, skipping insertion in model container [2021-12-28 09:42:10,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:42:10" (1/1) ... [2021-12-28 09:42:10,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:42:10,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:42:11,078 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_spec5_product61.cil.c[18376,18389] [2021-12-28 09:42:11,084 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:42:11,092 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:42:11,145 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_spec5_product61.cil.c[18376,18389] [2021-12-28 09:42:11,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:42:11,159 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:42:11,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:11 WrapperNode [2021-12-28 09:42:11,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:42:11,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:42:11,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:42:11,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:42:11,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:11" (1/1) ... [2021-12-28 09:42:11,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:11" (1/1) ... [2021-12-28 09:42:11,255 INFO L137 Inliner]: procedures = 59, calls = 163, calls flagged for inlining = 60, calls inlined = 180, statements flattened = 1293 [2021-12-28 09:42:11,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:42:11,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:42:11,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:42:11,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:42:11,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:11" (1/1) ... [2021-12-28 09:42:11,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:11" (1/1) ... [2021-12-28 09:42:11,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:11" (1/1) ... [2021-12-28 09:42:11,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:11" (1/1) ... [2021-12-28 09:42:11,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:11" (1/1) ... [2021-12-28 09:42:11,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:11" (1/1) ... [2021-12-28 09:42:11,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:11" (1/1) ... [2021-12-28 09:42:11,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:42:11,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:42:11,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:42:11,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:42:11,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:11" (1/1) ... [2021-12-28 09:42:11,310 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:11,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:11,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:11,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-28 09:42:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:42:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:42:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:42:11,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:42:11,514 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:42:11,515 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:42:11,983 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:42:11,990 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:42:11,990 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 09:42:11,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:42:11 BoogieIcfgContainer [2021-12-28 09:42:11,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:42:11,993 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:42:11,993 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:42:11,995 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:42:11,996 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:42:11,996 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:42:10" (1/3) ... [2021-12-28 09:42:11,996 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37909980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:42:11, skipping insertion in model container [2021-12-28 09:42:11,997 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:42:11,997 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:11" (2/3) ... [2021-12-28 09:42:11,997 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37909980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:42:11, skipping insertion in model container [2021-12-28 09:42:11,997 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:42:11,997 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:42:11" (3/3) ... [2021-12-28 09:42:11,998 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product61.cil.c [2021-12-28 09:42:12,024 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:42:12,024 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:42:12,024 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:42:12,024 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:42:12,025 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:42:12,025 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:42:12,025 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:42:12,025 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:42:12,039 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 328 states, 327 states have (on average 1.3516819571865444) internal successors, (442), 327 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:42:12,063 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2021-12-28 09:42:12,064 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:42:12,064 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:42:12,069 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:42:12,070 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:42:12,070 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:42:12,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 328 states, 327 states have (on average 1.3516819571865444) internal successors, (442), 327 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:42:12,078 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2021-12-28 09:42:12,078 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:42:12,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:42:12,080 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:42:12,080 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:42:12,083 INFO L791 eck$LassoCheckResult]: Stem: 312#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 207#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret55#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 181#L918true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 228#L911true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 284#L926true main_#t~ret55#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret55#1;havoc main_#t~ret55#1; 287#L1023true assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 307#L999true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 141#L850true assume { :end_inline___utac_acc__Specification5_spec__1 } 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; 159#L64-2true [2021-12-28 09:42:12,083 INFO L793 eck$LassoCheckResult]: Loop: 159#L64-2true assume !false; 329#L65true assume test_~splverifierCounter~0#1 < 4; 35#L66true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 245#L74true assume !(0 != test_~tmp~0#1); 120#L74-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 135#L84true assume !(0 != test_~tmp___0~0#1); 27#L84-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 136#L94true assume 0 != test_~tmp___2~0#1; 110#L100-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret51#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 127#L294true __utac_acc__Specification5_spec__2_#t~ret51#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret51#1;havoc __utac_acc__Specification5_spec__2_#t~ret51#1; 121#L860true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 60#L140true assume !(0 != ~pumpRunning~0); 55#L140-2true assume !(0 != ~systemActive~0); 68#L147-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 71#L449true __utac_acc__Specification5_spec__3_#t~ret52#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 290#L871true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10#1); 252#L871-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 10#L157true assume { :end_inline_timeShift } true; 159#L64-2true [2021-12-28 09:42:12,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:42:12,087 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-28 09:42:12,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:42:12,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701043265] [2021-12-28 09:42:12,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:42:12,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:42:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:12,180 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:42:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:12,230 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:42:12,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:42:12,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1418719860, now seen corresponding path program 1 times [2021-12-28 09:42:12,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:42:12,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350669715] [2021-12-28 09:42:12,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:42:12,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:42:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:12,255 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:42:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:12,262 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:42:12,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:42:12,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1536895029, now seen corresponding path program 1 times [2021-12-28 09:42:12,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:42:12,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309197728] [2021-12-28 09:42:12,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:42:12,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:42:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:42:12,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:42:12,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:42:12,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309197728] [2021-12-28 09:42:12,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309197728] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:42:12,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:42:12,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:42:12,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515250311] [2021-12-28 09:42:12,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:42:12,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:42:12,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 09:42:12,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 09:42:12,597 INFO L87 Difference]: Start difference. First operand has 328 states, 327 states have (on average 1.3516819571865444) internal successors, (442), 327 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:42:12,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:42:12,668 INFO L93 Difference]: Finished difference Result 325 states and 428 transitions. [2021-12-28 09:42:12,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 09:42:12,673 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 325 states and 428 transitions. [2021-12-28 09:42:12,682 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 210 [2021-12-28 09:42:12,689 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 325 states to 315 states and 418 transitions. [2021-12-28 09:42:12,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 315 [2021-12-28 09:42:12,691 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 315 [2021-12-28 09:42:12,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 315 states and 418 transitions. [2021-12-28 09:42:12,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:42:12,695 INFO L681 BuchiCegarLoop]: Abstraction has 315 states and 418 transitions. [2021-12-28 09:42:12,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states and 418 transitions. [2021-12-28 09:42:12,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2021-12-28 09:42:12,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 315 states have (on average 1.326984126984127) internal successors, (418), 314 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:42:12,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 418 transitions. [2021-12-28 09:42:12,736 INFO L704 BuchiCegarLoop]: Abstraction has 315 states and 418 transitions. [2021-12-28 09:42:12,736 INFO L587 BuchiCegarLoop]: Abstraction has 315 states and 418 transitions. [2021-12-28 09:42:12,736 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:42:12,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 315 states and 418 transitions. [2021-12-28 09:42:12,739 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 210 [2021-12-28 09:42:12,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:42:12,740 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:42:12,741 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:42:12,741 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] [2021-12-28 09:42:12,741 INFO L791 eck$LassoCheckResult]: Stem: 983#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 941#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret55#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 924#L918 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 925#L911 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 958#L926 main_#t~ret55#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret55#1;havoc main_#t~ret55#1; 978#L1023 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 979#L999 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 889#L850 assume { :end_inline___utac_acc__Specification5_spec__1 } 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; 683#L64-2 [2021-12-28 09:42:12,742 INFO L793 eck$LassoCheckResult]: Loop: 683#L64-2 assume !false; 906#L65 assume test_~splverifierCounter~0#1 < 4; 735#L66 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 736#L74 assume !(0 != test_~tmp~0#1); 868#L74-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 869#L84 assume !(0 != test_~tmp___0~0#1); 720#L84-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 721#L94 assume 0 != test_~tmp___2~0#1; 857#L100-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret51#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 858#L294 __utac_acc__Specification5_spec__2_#t~ret51#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret51#1;havoc __utac_acc__Specification5_spec__2_#t~ret51#1; 870#L860 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 781#L140 assume !(0 != ~pumpRunning~0); 772#L140-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 773#L224 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~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 744#L417 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; 745#L285 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; 828#L228 assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 829#L275 assume { :end_inline_deactivatePump } true; 835#L224-1 assume { :end_inline_processEnvironment } true; 793#L147-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 794#L449 __utac_acc__Specification5_spec__3_#t~ret52#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 801#L871 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10#1); 697#L871-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 682#L157 assume { :end_inline_timeShift } true; 683#L64-2 [2021-12-28 09:42:12,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:42:12,742 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-28 09:42:12,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:42:12,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108744053] [2021-12-28 09:42:12,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:42:12,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:42:12,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:12,771 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:42:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:12,788 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:42:12,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:42:12,789 INFO L85 PathProgramCache]: Analyzing trace with hash 616160725, now seen corresponding path program 1 times [2021-12-28 09:42:12,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:42:12,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720736706] [2021-12-28 09:42:12,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:42:12,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:42:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:42:12,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:42:12,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:42:12,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720736706] [2021-12-28 09:42:12,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720736706] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:42:12,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:42:12,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 09:42:12,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389243853] [2021-12-28 09:42:12,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:42:12,809 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-28 09:42:12,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:42:12,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 09:42:12,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 09:42:12,810 INFO L87 Difference]: Start difference. First operand 315 states and 418 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:42:12,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:42:12,885 INFO L93 Difference]: Finished difference Result 331 states and 417 transitions. [2021-12-28 09:42:12,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 09:42:12,886 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 331 states and 417 transitions. [2021-12-28 09:42:12,887 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 226 [2021-12-28 09:42:12,889 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 331 states to 331 states and 417 transitions. [2021-12-28 09:42:12,889 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 331 [2021-12-28 09:42:12,889 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 331 [2021-12-28 09:42:12,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 331 states and 417 transitions. [2021-12-28 09:42:12,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:42:12,891 INFO L681 BuchiCegarLoop]: Abstraction has 331 states and 417 transitions. [2021-12-28 09:42:12,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states and 417 transitions. [2021-12-28 09:42:12,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2021-12-28 09:42:12,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 331 states have (on average 1.2598187311178248) internal successors, (417), 330 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:42:12,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 417 transitions. [2021-12-28 09:42:12,908 INFO L704 BuchiCegarLoop]: Abstraction has 331 states and 417 transitions. [2021-12-28 09:42:12,908 INFO L587 BuchiCegarLoop]: Abstraction has 331 states and 417 transitions. [2021-12-28 09:42:12,909 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:42:12,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 331 states and 417 transitions. [2021-12-28 09:42:12,910 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 226 [2021-12-28 09:42:12,910 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:42:12,910 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:42:12,912 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:42:12,912 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, 1] [2021-12-28 09:42:12,912 INFO L791 eck$LassoCheckResult]: Stem: 1590#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 1548#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret55#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 1527#L918 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1528#L911 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 1557#L926 main_#t~ret55#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret55#1;havoc main_#t~ret55#1; 1584#L1023 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 1586#L999 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1502#L850 assume { :end_inline___utac_acc__Specification5_spec__1 } 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; 1330#L64-2 [2021-12-28 09:42:12,916 INFO L793 eck$LassoCheckResult]: Loop: 1330#L64-2 assume !false; 1510#L65 assume test_~splverifierCounter~0#1 < 4; 1594#L66 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1652#L74 assume !(0 != test_~tmp~0#1); 1650#L74-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1648#L84 assume !(0 != test_~tmp___0~0#1); 1646#L84-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1492#L94 assume 0 != test_~tmp___2~0#1; 1469#L100-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret51#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 1470#L294 __utac_acc__Specification5_spec__2_#t~ret51#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret51#1;havoc __utac_acc__Specification5_spec__2_#t~ret51#1; 1481#L860 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1411#L140 assume !(0 != ~pumpRunning~0); 1405#L140-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1406#L224 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; 1571#L198-2 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; 1509#L172-6 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~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 1418#L457-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 1419#L462-3 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; 1587#L343-9 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1572#L343-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1436#L349-3 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; 1437#L176-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1487#L164-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1324#L172-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1585#L198-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1448#L224-1 assume { :end_inline_processEnvironment } true; 1422#L147-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 1423#L449 __utac_acc__Specification5_spec__3_#t~ret52#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 1424#L871 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10#1); 1344#L871-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1329#L157 assume { :end_inline_timeShift } true; 1330#L64-2 [2021-12-28 09:42:12,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:42:12,917 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-28 09:42:12,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:42:12,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663997062] [2021-12-28 09:42:12,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:42:12,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:42:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:12,924 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:42:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:12,936 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:42:12,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:42:12,937 INFO L85 PathProgramCache]: Analyzing trace with hash -156175744, now seen corresponding path program 1 times [2021-12-28 09:42:12,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:42:12,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987301701] [2021-12-28 09:42:12,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:42:12,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:42:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:42:12,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:42:12,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:42:12,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987301701] [2021-12-28 09:42:12,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987301701] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:42:12,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:42:12,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:42:12,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92370448] [2021-12-28 09:42:12,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:42:12,966 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-28 09:42:12,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:42:12,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 09:42:12,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 09:42:12,967 INFO L87 Difference]: Start difference. First operand 331 states and 417 transitions. cyclomatic complexity: 88 Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:42:13,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:42:13,132 INFO L93 Difference]: Finished difference Result 1647 states and 2066 transitions. [2021-12-28 09:42:13,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 09:42:13,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1647 states and 2066 transitions. [2021-12-28 09:42:13,140 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 1117 [2021-12-28 09:42:13,145 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1647 states to 1647 states and 2066 transitions. [2021-12-28 09:42:13,146 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1647 [2021-12-28 09:42:13,147 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1647 [2021-12-28 09:42:13,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1647 states and 2066 transitions. [2021-12-28 09:42:13,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:42:13,148 INFO L681 BuchiCegarLoop]: Abstraction has 1647 states and 2066 transitions. [2021-12-28 09:42:13,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states and 2066 transitions. [2021-12-28 09:42:13,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 651. [2021-12-28 09:42:13,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 651 states have (on average 1.250384024577573) internal successors, (814), 650 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:42:13,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 814 transitions. [2021-12-28 09:42:13,158 INFO L704 BuchiCegarLoop]: Abstraction has 651 states and 814 transitions. [2021-12-28 09:42:13,158 INFO L587 BuchiCegarLoop]: Abstraction has 651 states and 814 transitions. [2021-12-28 09:42:13,158 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-28 09:42:13,158 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 651 states and 814 transitions. [2021-12-28 09:42:13,160 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 450 [2021-12-28 09:42:13,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:42:13,161 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:42:13,161 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:42:13,161 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, 1, 1, 1] [2021-12-28 09:42:13,162 INFO L791 eck$LassoCheckResult]: Stem: 3607#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 3549#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret55#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 3529#L918 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3530#L911 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 3563#L926 main_#t~ret55#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret55#1;havoc main_#t~ret55#1; 3596#L1023 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 3598#L999 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3498#L850 assume { :end_inline___utac_acc__Specification5_spec__1 } 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; 3327#L64-2 [2021-12-28 09:42:13,162 INFO L793 eck$LassoCheckResult]: Loop: 3327#L64-2 assume !false; 3509#L65 assume test_~splverifierCounter~0#1 < 4; 3613#L66 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 3905#L74 assume !(0 != test_~tmp~0#1); 3903#L74-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 3901#L84 assume !(0 != test_~tmp___0~0#1); 3899#L84-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 3897#L94 assume 0 != test_~tmp___2~0#1; 3896#L100-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret51#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 3895#L294 __utac_acc__Specification5_spec__2_#t~ret51#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret51#1;havoc __utac_acc__Specification5_spec__2_#t~ret51#1; 3893#L860 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3408#L140 assume !(0 != ~pumpRunning~0); 3402#L140-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 3403#L224 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; 3578#L198-2 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; 3508#L172-6 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~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 3415#L457-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 3416#L462-3 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; 3602#L343-9 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3579#L343-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 3435#L349-3 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; 3436#L176-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3489#L164-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3321#L172-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3599#L198-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3448#L224-1 assume { :end_inline_processEnvironment } true; 3419#L147-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 3420#L449 __utac_acc__Specification5_spec__3_#t~ret52#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 3600#L871 assume 2 != __utac_acc__Specification5_spec__3_~tmp~10#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 3601#L294-1 __utac_acc__Specification5_spec__3_#t~ret53#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret53#1;havoc __utac_acc__Specification5_spec__3_#t~ret53#1; 3340#L875 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1); 3341#L871-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3326#L157 assume { :end_inline_timeShift } true; 3327#L64-2 [2021-12-28 09:42:13,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:42:13,162 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2021-12-28 09:42:13,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:42:13,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313482504] [2021-12-28 09:42:13,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:42:13,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:42:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:13,169 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:42:13,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:13,175 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:42:13,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:42:13,176 INFO L85 PathProgramCache]: Analyzing trace with hash 219874235, now seen corresponding path program 1 times [2021-12-28 09:42:13,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:42:13,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721162336] [2021-12-28 09:42:13,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:42:13,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:42:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:13,181 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:42:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:13,186 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:42:13,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:42:13,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1533288946, now seen corresponding path program 1 times [2021-12-28 09:42:13,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:42:13,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590845693] [2021-12-28 09:42:13,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:42:13,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:42:13,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:13,194 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:42:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:13,204 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:42:15,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:42:15 BoogieIcfgContainer [2021-12-28 09:42:15,443 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:42:15,443 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:42:15,443 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:42:15,443 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:42:15,444 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:42:11" (3/4) ... [2021-12-28 09:42:15,445 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-28 09:42:15,531 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 09:42:15,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:42:15,532 INFO L158 Benchmark]: Toolchain (without parser) took 4909.07ms. Allocated memory was 58.7MB in the beginning and 172.0MB in the end (delta: 113.2MB). Free memory was 36.6MB in the beginning and 139.2MB in the end (delta: -102.6MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2021-12-28 09:42:15,532 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 40.6MB in the end (delta: 40.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:42:15,533 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.33ms. Allocated memory was 58.7MB in the beginning and 88.1MB in the end (delta: 29.4MB). Free memory was 36.4MB in the beginning and 62.2MB in the end (delta: -25.8MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2021-12-28 09:42:15,533 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.52ms. Allocated memory is still 88.1MB. Free memory was 62.2MB in the beginning and 56.6MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-28 09:42:15,533 INFO L158 Benchmark]: Boogie Preprocessor took 47.25ms. Allocated memory is still 88.1MB. Free memory was 56.6MB in the beginning and 52.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-28 09:42:15,533 INFO L158 Benchmark]: RCFGBuilder took 687.91ms. Allocated memory is still 88.1MB. Free memory was 52.9MB in the beginning and 61.0MB in the end (delta: -8.1MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2021-12-28 09:42:15,534 INFO L158 Benchmark]: BuchiAutomizer took 3449.88ms. Allocated memory was 88.1MB in the beginning and 172.0MB in the end (delta: 83.9MB). Free memory was 61.0MB in the beginning and 142.4MB in the end (delta: -81.3MB). Peak memory consumption was 98.5MB. Max. memory is 16.1GB. [2021-12-28 09:42:15,534 INFO L158 Benchmark]: Witness Printer took 88.34ms. Allocated memory is still 172.0MB. Free memory was 142.4MB in the beginning and 139.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-28 09:42:15,535 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 40.6MB in the end (delta: 40.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.33ms. Allocated memory was 58.7MB in the beginning and 88.1MB in the end (delta: 29.4MB). Free memory was 36.4MB in the beginning and 62.2MB in the end (delta: -25.8MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.52ms. Allocated memory is still 88.1MB. Free memory was 62.2MB in the beginning and 56.6MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.25ms. Allocated memory is still 88.1MB. Free memory was 56.6MB in the beginning and 52.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 687.91ms. Allocated memory is still 88.1MB. Free memory was 52.9MB in the beginning and 61.0MB in the end (delta: -8.1MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 3449.88ms. Allocated memory was 88.1MB in the beginning and 172.0MB in the end (delta: 83.9MB). Free memory was 61.0MB in the beginning and 142.4MB in the end (delta: -81.3MB). Peak memory consumption was 98.5MB. Max. memory is 16.1GB. * Witness Printer took 88.34ms. Allocated memory is still 172.0MB. Free memory was 142.4MB in the beginning and 139.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 651 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 996 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 651 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3169 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3169 mSDsluCounter, 3116 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1780 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 237 IncrementalHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 1336 mSDtfsCounter, 237 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 64]: 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@7801a76e=0, tmp=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52aee5a=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47e06e66=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a36707d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e86688a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c8dea02=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35544573=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77925eaf=29, methaneLevelCritical=0, retValue_acc=1, retValue_acc=1, retValue_acc=0, \result=1, tmp=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47de3c1a=0, tmp=1, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73d62f76=0, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@851ceac=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, \result=0, tmp___0=0, tmp=0, head=0, \result=1, tmp___1=0, retValue_acc=1, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e464217=0, \result=0, tmp=1, retValue_acc=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 64]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L128] int pumpRunning = 0; [L129] int systemActive = 1; [L374] int waterLevel = 1; [L375] int methaneLevelCritical = 0; [L646] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L844] int switchedOnBeforeTS ; [L940] int cleanupTimeShifts = 4; [L1014] int retValue_acc ; [L1015] int tmp ; [L1019] FCALL select_helpers() [L1020] FCALL select_features() [L1021] CALL, EXPR valid_product() [L922] int retValue_acc ; [L925] retValue_acc = 1 [L926] return (retValue_acc); [L1021] RET, EXPR valid_product() [L1021] tmp = valid_product() [L1023] COND TRUE \read(tmp) [L1025] FCALL setup() [L1026] CALL runTest() [L1007] CALL __utac_acc__Specification5_spec__1() [L849] switchedOnBeforeTS = 0 [L1007] RET __utac_acc__Specification5_spec__1() [L1008] CALL test() [L55] int splverifierCounter ; [L56] int tmp ; [L57] int tmp___0 ; [L58] int tmp___1 ; [L59] int tmp___2 ; [L62] splverifierCounter = 0 Loop: [L64] COND TRUE 1 [L66] COND TRUE splverifierCounter < 4 [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) [L107] CALL timeShift() [L138] CALL __utac_acc__Specification5_spec__2() [L858] CALL, EXPR isPumpRunning() [L290] int retValue_acc ; [L293] retValue_acc = pumpRunning [L294] return (retValue_acc); [L858] RET, EXPR isPumpRunning() [L858] switchedOnBeforeTS = isPumpRunning() [L138] RET __utac_acc__Specification5_spec__2() [L140] COND FALSE !(\read(pumpRunning)) [L147] COND TRUE \read(systemActive) [L149] CALL processEnvironment() [L221] int tmp ; [L224] COND FALSE !(\read(pumpRunning)) [L239] CALL processEnvironment__wrappee__methaneQuery() [L195] int tmp ; [L198] COND FALSE !(\read(pumpRunning)) [L213] CALL processEnvironment__wrappee__highWaterSensor() [L169] int tmp ; [L172] COND TRUE ! pumpRunning [L174] CALL, EXPR isHighWaterLevel() [L335] int retValue_acc ; [L336] int tmp ; [L337] int tmp___0 ; [L341] CALL, EXPR isHighWaterSensorDry() [L454] int retValue_acc ; [L457] COND TRUE waterLevel < 2 [L458] retValue_acc = 1 [L459] return (retValue_acc); [L341] RET, EXPR isHighWaterSensorDry() [L341] tmp = isHighWaterSensorDry() [L343] COND TRUE \read(tmp) [L344] tmp___0 = 0 [L348] retValue_acc = tmp___0 [L349] return (retValue_acc); [L174] RET, EXPR isHighWaterLevel() [L174] tmp = isHighWaterLevel() [L176] COND FALSE !(\read(tmp)) [L182] FCALL processEnvironment__wrappee__base() [L213] RET processEnvironment__wrappee__highWaterSensor() [L239] RET processEnvironment__wrappee__methaneQuery() [L149] RET processEnvironment() [L155] CALL __utac_acc__Specification5_spec__3() [L864] int tmp ; [L865] int tmp___0 ; [L869] CALL, EXPR getWaterLevel() [L445] int retValue_acc ; [L448] retValue_acc = waterLevel [L449] return (retValue_acc); [L869] RET, EXPR getWaterLevel() [L869] tmp = getWaterLevel() [L871] COND TRUE tmp != 2 [L873] CALL, EXPR isPumpRunning() [L290] int retValue_acc ; [L293] retValue_acc = pumpRunning [L294] return (retValue_acc); [L873] RET, EXPR isPumpRunning() [L873] tmp___0 = isPumpRunning() [L875] COND FALSE !(\read(tmp___0)) [L155] RET __utac_acc__Specification5_spec__3() [L107] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-28 09:42:15,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)