./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product64.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_spec2_product64.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 59d05b45c2855b02eb92cf6428285b3e4820a09d46d6a6d0a0748347de3adbb6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:40:21,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:40:21,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:40:21,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:40:21,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:40:21,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:40:21,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:40:21,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:40:21,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:40:21,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:40:21,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:40:21,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:40:21,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:40:21,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:40:21,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:40:21,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:40:21,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:40:21,271 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:40:21,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:40:21,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:40:21,279 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:40:21,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:40:21,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:40:21,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:40:21,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:40:21,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:40:21,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:40:21,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:40:21,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:40:21,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:40:21,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:40:21,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:40:21,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:40:21,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:40:21,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:40:21,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:40:21,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:40:21,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:40:21,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:40:21,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:40:21,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:40:21,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:40:21,323 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:40:21,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:40:21,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:40:21,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:40:21,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:40:21,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:40:21,326 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:40:21,326 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:40:21,327 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:40:21,327 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:40:21,327 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:40:21,327 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:40:21,328 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:40:21,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:40:21,328 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:40:21,328 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:40:21,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:40:21,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:40:21,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:40:21,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:40:21,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:40:21,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:40:21,329 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:40:21,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:40:21,329 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:40:21,330 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:40:21,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:40:21,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:40:21,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:40:21,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:40:21,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:40:21,331 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:40:21,331 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59d05b45c2855b02eb92cf6428285b3e4820a09d46d6a6d0a0748347de3adbb6 [2021-12-28 09:40:21,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:40:21,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:40:21,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:40:21,600 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:40:21,603 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:40:21,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2021-12-28 09:40:21,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49dd6f3c1/dc065a0c5a4c4506bee65de1ce906785/FLAG5426c7e84 [2021-12-28 09:40:22,098 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:40:22,098 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2021-12-28 09:40:22,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49dd6f3c1/dc065a0c5a4c4506bee65de1ce906785/FLAG5426c7e84 [2021-12-28 09:40:22,123 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49dd6f3c1/dc065a0c5a4c4506bee65de1ce906785 [2021-12-28 09:40:22,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:40:22,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:40:22,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:40:22,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:40:22,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:40:22,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:40:22" (1/1) ... [2021-12-28 09:40:22,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f123115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:22, skipping insertion in model container [2021-12-28 09:40:22,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:40:22" (1/1) ... [2021-12-28 09:40:22,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:40:22,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:40:22,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c[6823,6836] [2021-12-28 09:40:22,389 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:40:22,395 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:40:22,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c[6823,6836] [2021-12-28 09:40:22,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:40:22,478 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:40:22,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:22 WrapperNode [2021-12-28 09:40:22,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:40:22,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:40:22,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:40:22,485 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:40:22,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:22" (1/1) ... [2021-12-28 09:40:22,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:22" (1/1) ... [2021-12-28 09:40:22,566 INFO L137 Inliner]: procedures = 60, calls = 164, calls flagged for inlining = 61, calls inlined = 177, statements flattened = 1279 [2021-12-28 09:40:22,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:40:22,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:40:22,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:40:22,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:40:22,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:22" (1/1) ... [2021-12-28 09:40:22,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:22" (1/1) ... [2021-12-28 09:40:22,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:22" (1/1) ... [2021-12-28 09:40:22,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:22" (1/1) ... [2021-12-28 09:40:22,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:22" (1/1) ... [2021-12-28 09:40:22,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:22" (1/1) ... [2021-12-28 09:40:22,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:22" (1/1) ... [2021-12-28 09:40:22,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:40:22,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:40:22,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:40:22,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:40:22,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:22" (1/1) ... [2021-12-28 09:40:22,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:40:22,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:40:22,666 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 09:40:22,675 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 09:40:22,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:40:22,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:40:22,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:40:22,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:40:22,780 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:40:22,781 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:40:23,367 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:40:23,374 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:40:23,379 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 09:40:23,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:23 BoogieIcfgContainer [2021-12-28 09:40:23,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:40:23,385 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:40:23,385 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:40:23,387 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:40:23,387 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:23,387 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:40:22" (1/3) ... [2021-12-28 09:40:23,388 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@114f544d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:40:23, skipping insertion in model container [2021-12-28 09:40:23,388 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:23,388 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:22" (2/3) ... [2021-12-28 09:40:23,388 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@114f544d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:40:23, skipping insertion in model container [2021-12-28 09:40:23,388 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:23,388 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:23" (3/3) ... [2021-12-28 09:40:23,389 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product64.cil.c [2021-12-28 09:40:23,425 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:40:23,425 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:40:23,425 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:40:23,425 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:40:23,426 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:40:23,426 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:40:23,426 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:40:23,426 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:40:23,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 327 states, 326 states have (on average 1.3558282208588956) internal successors, (442), 326 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 09:40:23,480 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 215 [2021-12-28 09:40:23,480 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:23,480 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:23,485 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:23,485 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:23,485 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:40:23,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 327 states, 326 states have (on average 1.3558282208588956) internal successors, (442), 326 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 09:40:23,505 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 215 [2021-12-28 09:40:23,506 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:23,506 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:23,507 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:23,507 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:23,510 INFO L791 eck$LassoCheckResult]: Stem: 316#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;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 196#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~10#1, main_~tmp~8#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 232#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 321#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 32#L83true main_#t~ret31#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 126#L671true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 135#L647true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 153#L451true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 20#L377-2true [2021-12-28 09:40:23,511 INFO L793 eck$LassoCheckResult]: Loop: 20#L377-2true assume !false; 170#L378true assume test_~splverifierCounter~0#1 < 4; 116#L379true test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 215#L387true assume !(0 != test_~tmp~6#1); 288#L387-2true test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 138#L397true assume !(0 != test_~tmp___0~2#1); 173#L397-2true test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 18#L407true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 121#L415true assume !(0 != test_~tmp___1~0#1); 156#L415-2true assume { :begin_inline_timeShift } true; 28#L108true assume !(0 != ~pumpRunning~0); 280#L108-2true assume !(0 != ~systemActive~0); 73#L115-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 301#L528-5true __utac_acc__Specification2_spec__2_#t~ret24#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret24#1;havoc __utac_acc__Specification2_spec__2_#t~ret24#1; 92#L462true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 309#L462-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 274#L125true assume { :end_inline_timeShift } true; 20#L377-2true [2021-12-28 09:40:23,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:23,520 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-28 09:40:23,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:23,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890211470] [2021-12-28 09:40:23,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:23,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:23,587 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:23,624 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:23,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:23,625 INFO L85 PathProgramCache]: Analyzing trace with hash 821870935, now seen corresponding path program 1 times [2021-12-28 09:40:23,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:23,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961039765] [2021-12-28 09:40:23,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:23,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:23,631 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:23,635 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:23,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:23,636 INFO L85 PathProgramCache]: Analyzing trace with hash 85929358, now seen corresponding path program 1 times [2021-12-28 09:40:23,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:23,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813592724] [2021-12-28 09:40:23,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:23,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:23,750 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 09:40:23,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:23,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813592724] [2021-12-28 09:40:23,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813592724] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:23,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:23,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:40:23,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928940527] [2021-12-28 09:40:23,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:23,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:23,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 09:40:23,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 09:40:23,904 INFO L87 Difference]: Start difference. First operand has 327 states, 326 states have (on average 1.3558282208588956) internal successors, (442), 326 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 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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 09:40:24,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:24,041 INFO L93 Difference]: Finished difference Result 1021 states and 1356 transitions. [2021-12-28 09:40:24,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 09:40:24,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1021 states and 1356 transitions. [2021-12-28 09:40:24,064 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 672 [2021-12-28 09:40:24,075 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1021 states to 981 states and 1316 transitions. [2021-12-28 09:40:24,076 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 981 [2021-12-28 09:40:24,077 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 981 [2021-12-28 09:40:24,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 981 states and 1316 transitions. [2021-12-28 09:40:24,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:24,084 INFO L681 BuchiCegarLoop]: Abstraction has 981 states and 1316 transitions. [2021-12-28 09:40:24,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states and 1316 transitions. [2021-12-28 09:40:24,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 369. [2021-12-28 09:40:24,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 369 states have (on average 1.3414634146341464) internal successors, (495), 368 states have internal predecessors, (495), 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 09:40:24,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 495 transitions. [2021-12-28 09:40:24,135 INFO L704 BuchiCegarLoop]: Abstraction has 369 states and 495 transitions. [2021-12-28 09:40:24,136 INFO L587 BuchiCegarLoop]: Abstraction has 369 states and 495 transitions. [2021-12-28 09:40:24,136 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:40:24,136 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 369 states and 495 transitions. [2021-12-28 09:40:24,137 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 253 [2021-12-28 09:40:24,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:24,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:24,139 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:24,139 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] [2021-12-28 09:40:24,140 INFO L791 eck$LassoCheckResult]: Stem: 1680#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;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1631#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~10#1, main_~tmp~8#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 1632#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1660#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1422#L83 main_#t~ret31#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 1423#L671 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 1576#L647 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1586#L451 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1402#L377-2 [2021-12-28 09:40:24,140 INFO L793 eck$LassoCheckResult]: Loop: 1402#L377-2 assume !false; 1403#L378 assume test_~splverifierCounter~0#1 < 4; 1566#L379 test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1567#L387 assume !(0 != test_~tmp~6#1); 1618#L387-2 test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1588#L397 assume !(0 != test_~tmp___0~2#1); 1589#L397-2 test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1395#L407 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1396#L360 assume { :end_inline_startSystem } true; 1409#L415-2 assume { :begin_inline_timeShift } true; 1416#L108 assume !(0 != ~pumpRunning~0); 1417#L108-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1673#L192 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret9#1, isMethaneAlarm_~retValue_acc~2#1;havoc isMethaneAlarm_~retValue_acc~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1640#L528 isMethaneAlarm_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2#1 := isMethaneAlarm_#t~ret9#1;havoc isMethaneAlarm_#t~ret9#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; 1641#L253 processEnvironment_#t~ret7#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret7#1;havoc processEnvironment_#t~ret7#1; 1510#L196 assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1511#L243-1 assume { :end_inline_deactivatePump } true; 1587#L192-1 assume { :end_inline_processEnvironment } true; 1502#L115-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1503#L528-5 __utac_acc__Specification2_spec__2_#t~ret24#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret24#1;havoc __utac_acc__Specification2_spec__2_#t~ret24#1; 1535#L462 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 1537#L462-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1672#L125 assume { :end_inline_timeShift } true; 1402#L377-2 [2021-12-28 09:40:24,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:24,140 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-28 09:40:24,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:24,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293834198] [2021-12-28 09:40:24,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:24,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:24,151 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:24,161 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:24,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:24,161 INFO L85 PathProgramCache]: Analyzing trace with hash 2003765426, now seen corresponding path program 1 times [2021-12-28 09:40:24,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:24,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617555805] [2021-12-28 09:40:24,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:24,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:24,180 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 09:40:24,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:24,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617555805] [2021-12-28 09:40:24,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617555805] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:24,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:24,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 09:40:24,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240247861] [2021-12-28 09:40:24,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:24,181 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-28 09:40:24,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:24,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 09:40:24,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 09:40:24,182 INFO L87 Difference]: Start difference. First operand 369 states and 495 transitions. cyclomatic complexity: 129 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:40:24,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:24,251 INFO L93 Difference]: Finished difference Result 375 states and 478 transitions. [2021-12-28 09:40:24,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 09:40:24,252 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 375 states and 478 transitions. [2021-12-28 09:40:24,254 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 263 [2021-12-28 09:40:24,256 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 375 states to 375 states and 478 transitions. [2021-12-28 09:40:24,256 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 375 [2021-12-28 09:40:24,256 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 375 [2021-12-28 09:40:24,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 375 states and 478 transitions. [2021-12-28 09:40:24,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:24,256 INFO L681 BuchiCegarLoop]: Abstraction has 375 states and 478 transitions. [2021-12-28 09:40:24,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states and 478 transitions. [2021-12-28 09:40:24,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2021-12-28 09:40:24,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 375 states have (on average 1.2746666666666666) internal successors, (478), 374 states have internal predecessors, (478), 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 09:40:24,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 478 transitions. [2021-12-28 09:40:24,261 INFO L704 BuchiCegarLoop]: Abstraction has 375 states and 478 transitions. [2021-12-28 09:40:24,261 INFO L587 BuchiCegarLoop]: Abstraction has 375 states and 478 transitions. [2021-12-28 09:40:24,261 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:40:24,261 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 375 states and 478 transitions. [2021-12-28 09:40:24,262 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 263 [2021-12-28 09:40:24,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:24,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:24,263 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:24,263 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] [2021-12-28 09:40:24,263 INFO L791 eck$LassoCheckResult]: Stem: 2381#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;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2328#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~10#1, main_~tmp~8#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 2329#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2352#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2155#L83 main_#t~ret31#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 2156#L671 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 2271#L647 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2279#L451 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2293#L377-2 [2021-12-28 09:40:24,263 INFO L793 eck$LassoCheckResult]: Loop: 2293#L377-2 assume !false; 2452#L378 assume test_~splverifierCounter~0#1 < 4; 2453#L379 test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 2471#L387 assume !(0 != test_~tmp~6#1); 2469#L387-2 test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 2467#L397 assume !(0 != test_~tmp___0~2#1); 2465#L397-2 test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 2464#L407 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2135#L360 assume { :end_inline_startSystem } true; 2146#L415-2 assume { :begin_inline_timeShift } true; 2151#L108 assume !(0 != ~pumpRunning~0); 2152#L108-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2370#L192 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 2368#L166-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 2337#L140-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 2229#L568-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 2230#L573-3 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 2371#L311-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 2283#L311-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 2284#L317-3 processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1; 2215#L144-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2217#L132-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2268#L140-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2318#L166-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2280#L192-1 assume { :end_inline_processEnvironment } true; 2211#L115-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 2212#L528-5 __utac_acc__Specification2_spec__2_#t~ret24#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret24#1;havoc __utac_acc__Specification2_spec__2_#t~ret24#1; 2240#L462 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 2242#L462-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2369#L125 assume { :end_inline_timeShift } true; 2293#L377-2 [2021-12-28 09:40:24,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:24,264 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-28 09:40:24,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:24,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317531153] [2021-12-28 09:40:24,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:24,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:24,274 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:24,282 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:24,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:24,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1458371156, now seen corresponding path program 1 times [2021-12-28 09:40:24,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:24,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189664743] [2021-12-28 09:40:24,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:24,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:24,287 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:24,293 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:24,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:24,294 INFO L85 PathProgramCache]: Analyzing trace with hash 870738645, now seen corresponding path program 1 times [2021-12-28 09:40:24,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:24,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059544275] [2021-12-28 09:40:24,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:24,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:24,308 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:24,318 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:26,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:40:26 BoogieIcfgContainer [2021-12-28 09:40:26,678 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:40:26,680 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:40:26,681 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:40:26,681 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:40:26,681 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:23" (3/4) ... [2021-12-28 09:40:26,683 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-28 09:40:26,731 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 09:40:26,731 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:40:26,732 INFO L158 Benchmark]: Toolchain (without parser) took 4606.02ms. Allocated memory was 60.8MB in the beginning and 107.0MB in the end (delta: 46.1MB). Free memory was 40.8MB in the beginning and 36.4MB in the end (delta: 4.4MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:26,732 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:40:26,732 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.93ms. Allocated memory is still 60.8MB. Free memory was 40.6MB in the beginning and 35.8MB in the end (delta: 4.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-28 09:40:26,733 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.91ms. Allocated memory is still 60.8MB. Free memory was 35.6MB in the beginning and 30.5MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-28 09:40:26,733 INFO L158 Benchmark]: Boogie Preprocessor took 53.06ms. Allocated memory is still 60.8MB. Free memory was 30.3MB in the beginning and 26.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:26,733 INFO L158 Benchmark]: RCFGBuilder took 755.08ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 26.8MB in the beginning and 39.2MB in the end (delta: -12.3MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-12-28 09:40:26,733 INFO L158 Benchmark]: BuchiAutomizer took 3293.17ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 39.2MB in the beginning and 39.5MB in the end (delta: -373.9kB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2021-12-28 09:40:26,734 INFO L158 Benchmark]: Witness Printer took 51.09ms. Allocated memory is still 107.0MB. Free memory was 39.5MB in the beginning and 36.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-28 09:40:26,735 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 60.8MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.93ms. Allocated memory is still 60.8MB. Free memory was 40.6MB in the beginning and 35.8MB in the end (delta: 4.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.91ms. Allocated memory is still 60.8MB. Free memory was 35.6MB in the beginning and 30.5MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.06ms. Allocated memory is still 60.8MB. Free memory was 30.3MB in the beginning and 26.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 755.08ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 26.8MB in the beginning and 39.2MB in the end (delta: -12.3MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3293.17ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 39.2MB in the beginning and 39.5MB in the end (delta: -373.9kB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. * Witness Printer took 51.09ms. Allocated memory is still 107.0MB. Free memory was 39.5MB in the beginning and 36.4MB 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 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 375 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. 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, 612 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 375 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2321 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2321 mSDsluCounter, 3270 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2527 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 95 IncrementalHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 743 mSDtfsCounter, 95 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 - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 377]: 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@61b5f132=0, tmp=0, tmp___0=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74bf9827=0, methaneLevelCritical=0, tmp=0, \result=0, retValue_acc=0, retValue_acc=1, \result=1, \result=1, retValue_acc=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b8c6eb9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@163df046=0, tmp=1, tmp___2=29, methAndRunningLastTime=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f7417ca=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ca7a374=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79e97cf8=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@751ecc3f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@bf63c55=0, \result=0, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cee6f29=0, retValue_acc=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@259d2510=0, \result=0, tmp=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 377]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L100] int pumpRunning = 0; [L101] int systemActive = 1; [L445] int methAndRunningLastTime ; [L485] int waterLevel = 1; [L486] int methaneLevelCritical = 0; [L588] int cleanupTimeShifts = 4; [L854] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L662] int retValue_acc ; [L663] int tmp ; [L667] FCALL select_helpers() [L668] FCALL select_features() [L669] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L669] RET, EXPR valid_product() [L669] tmp = valid_product() [L671] COND TRUE \read(tmp) [L673] FCALL setup() [L674] CALL runTest() [L655] CALL __utac_acc__Specification2_spec__1() [L450] methAndRunningLastTime = 0 [L655] RET __utac_acc__Specification2_spec__1() [L656] CALL test() [L368] int splverifierCounter ; [L369] int tmp ; [L370] int tmp___0 ; [L371] int tmp___1 ; [L372] int tmp___2 ; [L375] splverifierCounter = 0 Loop: [L377] COND TRUE 1 [L379] COND TRUE splverifierCounter < 4 [L385] tmp = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp)) [L395] tmp___0 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___0)) [L405] tmp___2 = __VERIFIER_nondet_int() [L407] COND TRUE \read(tmp___2) [L409] CALL startSystem() [L359] systemActive = 1 [L409] RET startSystem() [L424] CALL timeShift() [L108] COND FALSE !(\read(pumpRunning)) [L115] COND TRUE \read(systemActive) [L117] CALL processEnvironment() [L189] int tmp ; [L192] COND FALSE !(\read(pumpRunning)) [L207] CALL processEnvironment__wrappee__methaneQuery() [L163] int tmp ; [L166] COND FALSE !(\read(pumpRunning)) [L181] CALL processEnvironment__wrappee__highWaterSensor() [L137] int tmp ; [L140] COND TRUE ! pumpRunning [L142] CALL, EXPR isHighWaterLevel() [L303] int retValue_acc ; [L304] int tmp ; [L305] int tmp___0 ; [L309] CALL, EXPR isHighWaterSensorDry() [L565] int retValue_acc ; [L568] COND TRUE waterLevel < 2 [L569] retValue_acc = 1 [L570] return (retValue_acc); [L309] RET, EXPR isHighWaterSensorDry() [L309] tmp = isHighWaterSensorDry() [L311] COND TRUE \read(tmp) [L312] tmp___0 = 0 [L316] retValue_acc = tmp___0 [L317] return (retValue_acc); [L142] RET, EXPR isHighWaterLevel() [L142] tmp = isHighWaterLevel() [L144] COND FALSE !(\read(tmp)) [L150] FCALL processEnvironment__wrappee__base() [L181] RET processEnvironment__wrappee__highWaterSensor() [L207] RET processEnvironment__wrappee__methaneQuery() [L117] RET processEnvironment() [L123] CALL __utac_acc__Specification2_spec__2() [L455] int tmp ; [L456] int tmp___0 ; [L460] CALL, EXPR isMethaneLevelCritical() [L524] int retValue_acc ; [L527] retValue_acc = methaneLevelCritical [L528] return (retValue_acc); [L460] RET, EXPR isMethaneLevelCritical() [L460] tmp = isMethaneLevelCritical() [L462] COND FALSE !(\read(tmp)) [L478] methAndRunningLastTime = 0 [L123] RET __utac_acc__Specification2_spec__2() [L424] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-28 09:40:26,775 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)