./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 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_spec4_product38.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 dfe9857e69a888cdbad1416d1b07f69e8062222f8bcfc0bd9dc9f4a773a0fc6f --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 15:27:15,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 15:27:15,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 15:27:15,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 15:27:15,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 15:27:15,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 15:27:15,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 15:27:15,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 15:27:15,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 15:27:15,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 15:27:15,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 15:27:15,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 15:27:15,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 15:27:15,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 15:27:15,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 15:27:15,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 15:27:15,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 15:27:15,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 15:27:15,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 15:27:15,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 15:27:15,377 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 15:27:15,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 15:27:15,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 15:27:15,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 15:27:15,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 15:27:15,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 15:27:15,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 15:27:15,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 15:27:15,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 15:27:15,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 15:27:15,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 15:27:15,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 15:27:15,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 15:27:15,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 15:27:15,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 15:27:15,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 15:27:15,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 15:27:15,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 15:27:15,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 15:27:15,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 15:27:15,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 15:27:15,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 15:27:15,394 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-23 15:27:15,413 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 15:27:15,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 15:27:15,414 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 15:27:15,414 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 15:27:15,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 15:27:15,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 15:27:15,415 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 15:27:15,415 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 15:27:15,416 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 15:27:15,416 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 15:27:15,416 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 15:27:15,416 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 15:27:15,417 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 15:27:15,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 15:27:15,417 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 15:27:15,417 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 15:27:15,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 15:27:15,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 15:27:15,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 15:27:15,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 15:27:15,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 15:27:15,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 15:27:15,418 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 15:27:15,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 15:27:15,418 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 15:27:15,418 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 15:27:15,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 15:27:15,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 15:27:15,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 15:27:15,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 15:27:15,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 15:27:15,420 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 15:27:15,420 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfe9857e69a888cdbad1416d1b07f69e8062222f8bcfc0bd9dc9f4a773a0fc6f [2022-07-23 15:27:15,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 15:27:15,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 15:27:15,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 15:27:15,749 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 15:27:15,749 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 15:27:15,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c [2022-07-23 15:27:15,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca8d10df6/0f07d26354eb4806bd0d1a27968520ec/FLAG8e74f4b3e [2022-07-23 15:27:16,339 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 15:27:16,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c [2022-07-23 15:27:16,352 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca8d10df6/0f07d26354eb4806bd0d1a27968520ec/FLAG8e74f4b3e [2022-07-23 15:27:16,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca8d10df6/0f07d26354eb4806bd0d1a27968520ec [2022-07-23 15:27:16,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 15:27:16,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 15:27:16,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 15:27:16,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 15:27:16,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 15:27:16,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:27:16" (1/1) ... [2022-07-23 15:27:16,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@601073ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:16, skipping insertion in model container [2022-07-23 15:27:16,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:27:16" (1/1) ... [2022-07-23 15:27:16,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 15:27:16,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 15:27:16,945 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c[4301,4314] [2022-07-23 15:27:16,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:27:17,001 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 15:27:17,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c[4301,4314] [2022-07-23 15:27:17,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:27:17,054 INFO L208 MainTranslator]: Completed translation [2022-07-23 15:27:17,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:17 WrapperNode [2022-07-23 15:27:17,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 15:27:17,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 15:27:17,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 15:27:17,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 15:27:17,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:17" (1/1) ... [2022-07-23 15:27:17,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:17" (1/1) ... [2022-07-23 15:27:17,099 INFO L137 Inliner]: procedures = 54, calls = 154, calls flagged for inlining = 51, calls inlined = 78, statements flattened = 584 [2022-07-23 15:27:17,100 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 15:27:17,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 15:27:17,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 15:27:17,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 15:27:17,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:17" (1/1) ... [2022-07-23 15:27:17,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:17" (1/1) ... [2022-07-23 15:27:17,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:17" (1/1) ... [2022-07-23 15:27:17,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:17" (1/1) ... [2022-07-23 15:27:17,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:17" (1/1) ... [2022-07-23 15:27:17,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:17" (1/1) ... [2022-07-23 15:27:17,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:17" (1/1) ... [2022-07-23 15:27:17,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 15:27:17,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 15:27:17,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 15:27:17,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 15:27:17,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:17" (1/1) ... [2022-07-23 15:27:17,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:27:17,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:27:17,163 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 15:27:17,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-23 15:27:17,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 15:27:17,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 15:27:17,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 15:27:17,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 15:27:17,235 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 15:27:17,236 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 15:27:17,482 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 15:27:17,487 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 15:27:17,487 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 15:27:17,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:27:17 BoogieIcfgContainer [2022-07-23 15:27:17,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 15:27:17,490 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 15:27:17,490 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 15:27:17,492 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 15:27:17,492 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:27:17,492 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 03:27:16" (1/3) ... [2022-07-23 15:27:17,493 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fcf110c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:27:17, skipping insertion in model container [2022-07-23 15:27:17,493 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:27:17,493 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:17" (2/3) ... [2022-07-23 15:27:17,494 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fcf110c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:27:17, skipping insertion in model container [2022-07-23 15:27:17,494 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:27:17,494 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:27:17" (3/3) ... [2022-07-23 15:27:17,495 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product38.cil.c [2022-07-23 15:27:17,558 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 15:27:17,559 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 15:27:17,559 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 15:27:17,559 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 15:27:17,559 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 15:27:17,559 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 15:27:17,559 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 15:27:17,560 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 15:27:17,563 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 157 states, 156 states have (on average 1.3717948717948718) internal successors, (214), 156 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:27:17,591 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2022-07-23 15:27:17,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:27:17,591 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:27:17,595 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:17,596 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:17,596 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 15:27:17,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 157 states, 156 states have (on average 1.3717948717948718) internal successors, (214), 156 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:27:17,602 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2022-07-23 15:27:17,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:27:17,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:27:17,603 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:17,603 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:17,606 INFO L752 eck$LassoCheckResult]: Stem: 141#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 45#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 20#L933true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 113#L926true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 124#L941true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 67#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 135#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 123#L300-2true [2022-07-23 15:27:17,607 INFO L754 eck$LassoCheckResult]: Loop: 123#L300-2true assume !false; 103#L301true assume test_~splverifierCounter~0#1 < 4; 95#L302true test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 80#L310true assume !(0 != test_~tmp~2#1); 3#L310-2true test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 94#L320true assume !(0 != test_~tmp___0~1#1); 89#L320-2true test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 59#L330true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 61#L338true assume 0 != test_~tmp___1~0#1; 86#L338-2true assume { :begin_inline_timeShift } true; 131#L366true assume !(0 != ~pumpRunning~0); 115#L366-2true assume !(0 != ~systemActive~0); 16#L373-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret10#1, __utac_acc__Specification4_spec__1_#t~ret11#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 78#L234true __utac_acc__Specification4_spec__1_#t~ret10#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret10#1;havoc __utac_acc__Specification4_spec__1_#t~ret10#1; 37#L271true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 25#L271-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 60#L383true assume { :end_inline_timeShift } true; 123#L300-2true [2022-07-23 15:27:17,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:17,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-07-23 15:27:17,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:17,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633426665] [2022-07-23 15:27:17,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:17,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:17,769 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:27:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:17,825 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:27:17,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:17,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1718428226, now seen corresponding path program 1 times [2022-07-23 15:27:17,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:17,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440963620] [2022-07-23 15:27:17,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:17,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:17,855 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:27:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:17,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:27:17,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:17,871 INFO L85 PathProgramCache]: Analyzing trace with hash 786746622, now seen corresponding path program 1 times [2022-07-23 15:27:17,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:17,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030790867] [2022-07-23 15:27:17,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:17,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:27:17,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:27:17,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:27:17,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030790867] [2022-07-23 15:27:17,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030790867] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:27:17,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:27:17,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 15:27:17,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108006745] [2022-07-23 15:27:17,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:27:18,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:27:18,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 15:27:18,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-23 15:27:18,158 INFO L87 Difference]: Start difference. First operand has 157 states, 156 states have (on average 1.3717948717948718) internal successors, (214), 156 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:27:18,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:27:18,232 INFO L93 Difference]: Finished difference Result 154 states and 200 transitions. [2022-07-23 15:27:18,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 15:27:18,238 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 200 transitions. [2022-07-23 15:27:18,248 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 97 [2022-07-23 15:27:18,254 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 144 states and 190 transitions. [2022-07-23 15:27:18,256 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 144 [2022-07-23 15:27:18,258 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 144 [2022-07-23 15:27:18,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 190 transitions. [2022-07-23 15:27:18,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:27:18,260 INFO L369 hiAutomatonCegarLoop]: Abstraction has 144 states and 190 transitions. [2022-07-23 15:27:18,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 190 transitions. [2022-07-23 15:27:18,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2022-07-23 15:27:18,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 144 states have (on average 1.3194444444444444) internal successors, (190), 143 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:27:18,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 190 transitions. [2022-07-23 15:27:18,282 INFO L392 hiAutomatonCegarLoop]: Abstraction has 144 states and 190 transitions. [2022-07-23 15:27:18,283 INFO L374 stractBuchiCegarLoop]: Abstraction has 144 states and 190 transitions. [2022-07-23 15:27:18,283 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 15:27:18,283 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 190 transitions. [2022-07-23 15:27:18,284 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 97 [2022-07-23 15:27:18,284 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:27:18,284 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:27:18,285 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:18,285 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:18,285 INFO L752 eck$LassoCheckResult]: Stem: 472#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 395#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 360#L933 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 361#L926 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 456#L941 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 421#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 422#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 411#L300-2 [2022-07-23 15:27:18,285 INFO L754 eck$LassoCheckResult]: Loop: 411#L300-2 assume !false; 450#L301 assume test_~splverifierCounter~0#1 < 4; 444#L302 test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 433#L310 assume !(0 != test_~tmp~2#1); 329#L310-2 test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 330#L320 assume !(0 != test_~tmp___0~1#1); 407#L320-2 test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 408#L330 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 409#L338 assume 0 != test_~tmp___1~0#1; 412#L338-2 assume { :begin_inline_timeShift } true; 438#L366 assume !(0 != ~pumpRunning~0); 372#L366-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 457#L424 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 374#L398-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 341#L390-3 assume { :end_inline_processEnvironment__wrappee__base } true; 342#L398-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 382#L424-1 assume { :end_inline_processEnvironment } true; 353#L373-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret10#1, __utac_acc__Specification4_spec__1_#t~ret11#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 354#L234 __utac_acc__Specification4_spec__1_#t~ret10#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret10#1;havoc __utac_acc__Specification4_spec__1_#t~ret10#1; 383#L271 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 366#L271-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 367#L383 assume { :end_inline_timeShift } true; 411#L300-2 [2022-07-23 15:27:18,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:18,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-07-23 15:27:18,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:18,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741525498] [2022-07-23 15:27:18,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:18,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:18,296 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:27:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:18,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:27:18,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:18,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1397750183, now seen corresponding path program 1 times [2022-07-23 15:27:18,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:18,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195706716] [2022-07-23 15:27:18,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:18,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:27:18,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:27:18,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:27:18,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195706716] [2022-07-23 15:27:18,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195706716] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:27:18,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:27:18,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:27:18,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224729843] [2022-07-23 15:27:18,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:27:18,320 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:27:18,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:27:18,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:27:18,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:27:18,321 INFO L87 Difference]: Start difference. First operand 144 states and 190 transitions. cyclomatic complexity: 48 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:27:18,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:27:18,365 INFO L93 Difference]: Finished difference Result 200 states and 253 transitions. [2022-07-23 15:27:18,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:27:18,366 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 200 states and 253 transitions. [2022-07-23 15:27:18,367 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 140 [2022-07-23 15:27:18,369 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 200 states to 200 states and 253 transitions. [2022-07-23 15:27:18,369 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 200 [2022-07-23 15:27:18,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 200 [2022-07-23 15:27:18,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 200 states and 253 transitions. [2022-07-23 15:27:18,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:27:18,370 INFO L369 hiAutomatonCegarLoop]: Abstraction has 200 states and 253 transitions. [2022-07-23 15:27:18,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states and 253 transitions. [2022-07-23 15:27:18,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2022-07-23 15:27:18,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 200 states have (on average 1.265) internal successors, (253), 199 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:27:18,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 253 transitions. [2022-07-23 15:27:18,377 INFO L392 hiAutomatonCegarLoop]: Abstraction has 200 states and 253 transitions. [2022-07-23 15:27:18,377 INFO L374 stractBuchiCegarLoop]: Abstraction has 200 states and 253 transitions. [2022-07-23 15:27:18,378 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 15:27:18,378 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 200 states and 253 transitions. [2022-07-23 15:27:18,379 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 140 [2022-07-23 15:27:18,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:27:18,379 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:27:18,380 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:18,380 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:18,380 INFO L752 eck$LassoCheckResult]: Stem: 836#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 745#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 709#L933 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 710#L926 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 814#L941 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 773#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 774#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 763#L300-2 [2022-07-23 15:27:18,380 INFO L754 eck$LassoCheckResult]: Loop: 763#L300-2 assume !false; 804#L301 assume test_~splverifierCounter~0#1 < 4; 805#L302 test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 863#L310 assume !(0 != test_~tmp~2#1); 861#L310-2 test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 859#L320 assume !(0 != test_~tmp___0~1#1); 857#L320-2 test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 856#L330 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 853#L541 assume { :end_inline_startSystem } true; 792#L338-2 assume { :begin_inline_timeShift } true; 793#L366 assume !(0 != ~pumpRunning~0); 815#L366-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 816#L424 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 723#L398-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret27#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;havoc isHighWaterSensorDry_~retValue_acc~3#1; 724#L242-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; 757#L247-1 isHighWaterLevel_#t~ret27#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret27#1;havoc isHighWaterLevel_#t~ret27#1; 743#L526-3 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~2#1 := 0; 744#L526-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 737#L532-1 processEnvironment__wrappee__highWaterSensor_#t~ret16#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret16#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1; 738#L402-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 834#L390-2 assume { :end_inline_processEnvironment__wrappee__base } true; 835#L398-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 830#L424-1 assume { :end_inline_processEnvironment } true; 847#L373-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret10#1, __utac_acc__Specification4_spec__1_#t~ret11#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 846#L234 __utac_acc__Specification4_spec__1_#t~ret10#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret10#1;havoc __utac_acc__Specification4_spec__1_#t~ret10#1; 844#L271 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 715#L271-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 716#L383 assume { :end_inline_timeShift } true; 763#L300-2 [2022-07-23 15:27:18,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:18,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-07-23 15:27:18,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:18,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53640582] [2022-07-23 15:27:18,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:18,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:18,390 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:27:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:18,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:27:18,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:18,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2093393760, now seen corresponding path program 1 times [2022-07-23 15:27:18,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:18,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279885272] [2022-07-23 15:27:18,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:18,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:18,407 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:27:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:18,413 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:27:18,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:18,413 INFO L85 PathProgramCache]: Analyzing trace with hash 842411812, now seen corresponding path program 1 times [2022-07-23 15:27:18,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:18,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450081396] [2022-07-23 15:27:18,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:18,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:18,423 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:27:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:18,435 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:27:20,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 03:27:20 BoogieIcfgContainer [2022-07-23 15:27:20,764 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 15:27:20,765 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 15:27:20,765 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 15:27:20,765 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 15:27:20,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:27:17" (3/4) ... [2022-07-23 15:27:20,781 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-23 15:27:20,834 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 15:27:20,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 15:27:20,835 INFO L158 Benchmark]: Toolchain (without parser) took 4032.92ms. Allocated memory was 96.5MB in the beginning and 151.0MB in the end (delta: 54.5MB). Free memory was 58.5MB in the beginning and 74.5MB in the end (delta: -16.0MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2022-07-23 15:27:20,835 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:27:20,835 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.27ms. Allocated memory is still 96.5MB. Free memory was 58.3MB in the beginning and 66.8MB in the end (delta: -8.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-23 15:27:20,836 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.72ms. Allocated memory is still 96.5MB. Free memory was 66.8MB in the beginning and 63.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:27:20,836 INFO L158 Benchmark]: Boogie Preprocessor took 37.63ms. Allocated memory is still 96.5MB. Free memory was 63.6MB in the beginning and 61.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:27:20,837 INFO L158 Benchmark]: RCFGBuilder took 350.64ms. Allocated memory is still 96.5MB. Free memory was 61.3MB in the beginning and 40.1MB in the end (delta: 21.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-23 15:27:20,837 INFO L158 Benchmark]: BuchiAutomizer took 3274.83ms. Allocated memory was 96.5MB in the beginning and 151.0MB in the end (delta: 54.5MB). Free memory was 40.1MB in the beginning and 77.6MB in the end (delta: -37.5MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2022-07-23 15:27:20,837 INFO L158 Benchmark]: Witness Printer took 69.45ms. Allocated memory is still 151.0MB. Free memory was 77.6MB in the beginning and 74.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:27:20,840 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.27ms. Allocated memory is still 96.5MB. Free memory was 58.3MB in the beginning and 66.8MB in the end (delta: -8.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.72ms. Allocated memory is still 96.5MB. Free memory was 66.8MB in the beginning and 63.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.63ms. Allocated memory is still 96.5MB. Free memory was 63.6MB in the beginning and 61.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 350.64ms. Allocated memory is still 96.5MB. Free memory was 61.3MB in the beginning and 40.1MB in the end (delta: 21.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 3274.83ms. Allocated memory was 96.5MB in the beginning and 151.0MB in the end (delta: 54.5MB). Free memory was 40.1MB in the beginning and 77.6MB in the end (delta: -37.5MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. * Witness Printer took 69.45ms. Allocated memory is still 151.0MB. Free memory was 77.6MB in the beginning and 74.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 200 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 901 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 901 mSDsluCounter, 486 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 91 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 395 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 300]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@362e297f=0, NULL=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3540a471=0, tmp___0=0, methaneLevelCritical=0, retValue_acc=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74652c3f=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44e809b9=0, \result=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30b46993=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f96d4a9=29, tmp=1, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20694a2c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a63570b=0, cleanupTimeShifts=4, tmp=0, tmp=1, \result=0, tmp=0, head=0, \result=1, retValue_acc=1, tmp___1=0, NULL=0, retValue_acc=0, waterLevel=1, systemActive=1, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@347b8b6c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63fa6218=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 300]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L159] int waterLevel = 1; [L160] int methaneLevelCritical = 0; [L359] int pumpRunning = 0; [L360] int systemActive = 1; [L714] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L937] int retValue_acc ; [L940] retValue_acc = 1 [L941] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L291] int splverifierCounter ; [L292] int tmp ; [L293] int tmp___0 ; [L294] int tmp___1 ; [L295] int tmp___2 ; [L298] splverifierCounter = 0 Loop: [L300] COND TRUE 1 [L302] COND TRUE splverifierCounter < 4 [L308] tmp = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp)) [L318] tmp___0 = __VERIFIER_nondet_int() [L320] COND FALSE !(\read(tmp___0)) [L328] tmp___2 = __VERIFIER_nondet_int() [L330] COND TRUE \read(tmp___2) [L332] CALL startSystem() [L540] systemActive = 1 [L332] RET startSystem() [L345] CALL timeShift() [L366] COND FALSE !(\read(pumpRunning)) [L373] COND TRUE \read(systemActive) [L375] CALL processEnvironment() [L421] int tmp ; [L424] COND FALSE !(\read(pumpRunning)) [L439] CALL processEnvironment__wrappee__highWaterSensor() [L395] int tmp ; [L398] COND TRUE ! pumpRunning [L400] CALL, EXPR isHighWaterLevel() [L518] int retValue_acc ; [L519] int tmp ; [L520] int tmp___0 ; [L524] CALL, EXPR isHighWaterSensorDry() [L239] int retValue_acc ; [L242] COND TRUE waterLevel < 2 [L243] retValue_acc = 1 [L244] return (retValue_acc); [L524] RET, EXPR isHighWaterSensorDry() [L524] tmp = isHighWaterSensorDry() [L526] COND TRUE \read(tmp) [L527] tmp___0 = 0 [L531] retValue_acc = tmp___0 [L532] return (retValue_acc); [L400] RET, EXPR isHighWaterLevel() [L400] tmp = isHighWaterLevel() [L402] COND FALSE !(\read(tmp)) [L408] FCALL processEnvironment__wrappee__base() [L439] RET processEnvironment__wrappee__highWaterSensor() [L375] RET processEnvironment() [L381] CALL __utac_acc__Specification4_spec__1() [L264] int tmp ; [L265] int tmp___0 ; [L269] CALL, EXPR getWaterLevel() [L230] int retValue_acc ; [L233] retValue_acc = waterLevel [L234] return (retValue_acc); [L269] RET, EXPR getWaterLevel() [L269] tmp = getWaterLevel() [L271] COND FALSE !(tmp == 0) [L381] RET __utac_acc__Specification4_spec__1() [L345] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-23 15:27:20,920 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)