./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product36.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 b71d0221e52ad3170b58f60abcb38413b01772c1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-31 04:12:04,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 04:12:04,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 04:12:04,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 04:12:04,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 04:12:04,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 04:12:04,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 04:12:04,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 04:12:04,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 04:12:04,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 04:12:04,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 04:12:04,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 04:12:04,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 04:12:04,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 04:12:04,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 04:12:04,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 04:12:04,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 04:12:04,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 04:12:04,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 04:12:04,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 04:12:04,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 04:12:04,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 04:12:04,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 04:12:04,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 04:12:04,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 04:12:04,959 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 04:12:04,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 04:12:04,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 04:12:04,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 04:12:04,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 04:12:04,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 04:12:04,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 04:12:04,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 04:12:04,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 04:12:04,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 04:12:04,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 04:12:04,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 04:12:04,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 04:12:04,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 04:12:04,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 04:12:04,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 04:12:04,970 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 04:12:05,003 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 04:12:05,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 04:12:05,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 04:12:05,004 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 04:12:05,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 04:12:05,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 04:12:05,006 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 04:12:05,007 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 04:12:05,007 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 04:12:05,007 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 04:12:05,007 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 04:12:05,007 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 04:12:05,007 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 04:12:05,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 04:12:05,008 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 04:12:05,008 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 04:12:05,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 04:12:05,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 04:12:05,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 04:12:05,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 04:12:05,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 04:12:05,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 04:12:05,008 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 04:12:05,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 04:12:05,009 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 04:12:05,009 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 04:12:05,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 04:12:05,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 04:12:05,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 04:12:05,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 04:12:05,009 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 04:12:05,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 04:12:05,010 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 04:12:05,010 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b71d0221e52ad3170b58f60abcb38413b01772c1 [2021-08-31 04:12:05,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 04:12:05,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 04:12:05,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 04:12:05,272 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 04:12:05,274 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 04:12:05,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2021-08-31 04:12:05,321 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab616cfa1/55b94f98514144df858fa46e0448a23f/FLAG50fd43f46 [2021-08-31 04:12:05,740 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 04:12:05,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2021-08-31 04:12:05,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab616cfa1/55b94f98514144df858fa46e0448a23f/FLAG50fd43f46 [2021-08-31 04:12:05,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab616cfa1/55b94f98514144df858fa46e0448a23f [2021-08-31 04:12:05,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 04:12:05,774 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 04:12:05,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 04:12:05,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 04:12:05,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 04:12:05,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 04:12:05" (1/1) ... [2021-08-31 04:12:05,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a89d5bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:05, skipping insertion in model container [2021-08-31 04:12:05,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 04:12:05" (1/1) ... [2021-08-31 04:12:05,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 04:12:05,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 04:12:05,957 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[1817,1830] [2021-08-31 04:12:06,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 04:12:06,095 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 04:12:06,115 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[1817,1830] [2021-08-31 04:12:06,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 04:12:06,159 INFO L208 MainTranslator]: Completed translation [2021-08-31 04:12:06,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:06 WrapperNode [2021-08-31 04:12:06,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 04:12:06,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 04:12:06,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 04:12:06,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 04:12:06,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:06" (1/1) ... [2021-08-31 04:12:06,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:06" (1/1) ... [2021-08-31 04:12:06,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 04:12:06,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 04:12:06,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 04:12:06,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 04:12:06,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:06" (1/1) ... [2021-08-31 04:12:06,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:06" (1/1) ... [2021-08-31 04:12:06,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:06" (1/1) ... [2021-08-31 04:12:06,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:06" (1/1) ... [2021-08-31 04:12:06,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:06" (1/1) ... [2021-08-31 04:12:06,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:06" (1/1) ... [2021-08-31 04:12:06,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:06" (1/1) ... [2021-08-31 04:12:06,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 04:12:06,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 04:12:06,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 04:12:06,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 04:12:06,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:06" (1/1) ... [2021-08-31 04:12:06,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:12:06,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:12:06,287 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) [2021-08-31 04:12:06,292 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 [2021-08-31 04:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 04:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-31 04:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 04:12:06,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 04:12:06,790 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 04:12:06,790 INFO L299 CfgBuilder]: Removed 116 assume(true) statements. [2021-08-31 04:12:06,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 04:12:06 BoogieIcfgContainer [2021-08-31 04:12:06,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 04:12:06,795 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 04:12:06,795 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 04:12:06,797 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 04:12:06,798 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:12:06,798 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 04:12:05" (1/3) ... [2021-08-31 04:12:06,798 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3738f34a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 04:12:06, skipping insertion in model container [2021-08-31 04:12:06,798 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:12:06,799 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:06" (2/3) ... [2021-08-31 04:12:06,799 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3738f34a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 04:12:06, skipping insertion in model container [2021-08-31 04:12:06,799 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:12:06,799 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 04:12:06" (3/3) ... [2021-08-31 04:12:06,800 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2021-08-31 04:12:06,826 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 04:12:06,827 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 04:12:06,827 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 04:12:06,827 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 04:12:06,827 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 04:12:06,827 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 04:12:06,827 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 04:12:06,827 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 04:12:06,841 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 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) [2021-08-31 04:12:06,861 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-08-31 04:12:06,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:12:06,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:12:06,866 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:06,866 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:06,867 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 04:12:06,868 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 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) [2021-08-31 04:12:06,878 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-08-31 04:12:06,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:12:06,878 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:12:06,879 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:06,879 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:06,883 INFO L791 eck$LassoCheckResult]: Stem: 65#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 52#L-1true havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 63#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 79#L75true main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 67#L802true assume 0 != main_~tmp~6; 29#L777true ~switchedOnBeforeTS~0 := 0; 4#L823true havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 72#L844-1true [2021-08-31 04:12:06,888 INFO L793 eck$LassoCheckResult]: Loop: 72#L844-1true assume !false; 33#L660true assume test_~splverifierCounter~0 < 4; 54#L661true test_~tmp~5 := test_#t~nondet62;havoc test_#t~nondet62; 55#L669true assume !(0 != test_~tmp~5); 45#L669-1true test_~tmp___0~1 := test_#t~nondet63;havoc test_#t~nondet63; 42#L679true assume !(0 != test_~tmp___0~1); 24#L679-1true test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 19#L689true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 23#L697-1true havoc __utac_acc__Specification5_spec__2_#t~ret67;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 10#L197true __utac_acc__Specification5_spec__2_#t~ret67 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret67;havoc __utac_acc__Specification5_spec__2_#t~ret67; 58#L833true assume !(0 != ~pumpRunning~0); 68#L112true assume !(0 != ~systemActive~0); 66#L119true havoc __utac_acc__Specification5_spec__3_#t~ret68, __utac_acc__Specification5_spec__3_#t~ret69, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 48#L941true __utac_acc__Specification5_spec__3_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret68;havoc __utac_acc__Specification5_spec__3_#t~ret68; 12#L844true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 72#L844-1true [2021-08-31 04:12:06,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:06,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-31 04:12:06,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:06,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830336821] [2021-08-31 04:12:06,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:06,899 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:07,070 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:12:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:07,169 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:12:07,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:07,171 INFO L82 PathProgramCache]: Analyzing trace with hash 675287606, now seen corresponding path program 1 times [2021-08-31 04:12:07,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:07,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993796345] [2021-08-31 04:12:07,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:07,172 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:12:07,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:12:07,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:12:07,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993796345] [2021-08-31 04:12:07,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993796345] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:12:07,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:12:07,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 04:12:07,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852481851] [2021-08-31 04:12:07,234 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 04:12:07,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:12:07,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 04:12:07,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 04:12:07,260 INFO L87 Difference]: Start difference. First operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-08-31 04:12:07,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:12:07,524 INFO L93 Difference]: Finished difference Result 165 states and 233 transitions. [2021-08-31 04:12:07,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 04:12:07,535 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 233 transitions. [2021-08-31 04:12:07,545 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 106 [2021-08-31 04:12:07,550 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 151 states and 218 transitions. [2021-08-31 04:12:07,551 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 151 [2021-08-31 04:12:07,553 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 151 [2021-08-31 04:12:07,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 151 states and 218 transitions. [2021-08-31 04:12:07,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:12:07,556 INFO L681 BuchiCegarLoop]: Abstraction has 151 states and 218 transitions. [2021-08-31 04:12:07,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states and 218 transitions. [2021-08-31 04:12:07,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2021-08-31 04:12:07,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 149 states have (on average 1.4429530201342282) internal successors, (215), 148 states have internal predecessors, (215), 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) [2021-08-31 04:12:07,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 215 transitions. [2021-08-31 04:12:07,590 INFO L704 BuchiCegarLoop]: Abstraction has 149 states and 215 transitions. [2021-08-31 04:12:07,590 INFO L587 BuchiCegarLoop]: Abstraction has 149 states and 215 transitions. [2021-08-31 04:12:07,590 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 04:12:07,591 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 215 transitions. [2021-08-31 04:12:07,592 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2021-08-31 04:12:07,592 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:12:07,592 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:12:07,594 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:07,594 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:07,594 INFO L791 eck$LassoCheckResult]: Stem: 341#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 331#L-1 havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 332#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 340#L75 main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 343#L802 assume 0 != main_~tmp~6; 305#L777 ~switchedOnBeforeTS~0 := 0; 260#L823 havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 261#L844-1 [2021-08-31 04:12:07,594 INFO L793 eck$LassoCheckResult]: Loop: 261#L844-1 assume !false; 359#L660 assume test_~splverifierCounter~0 < 4; 360#L661 test_~tmp~5 := test_#t~nondet62;havoc test_#t~nondet62; 399#L669 assume !(0 != test_~tmp~5); 397#L669-1 test_~tmp___0~1 := test_#t~nondet63;havoc test_#t~nondet63; 396#L679 assume !(0 != test_~tmp___0~1); 392#L679-1 test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 391#L689 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 292#L697-1 havoc __utac_acc__Specification5_spec__2_#t~ret67;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 369#L197 __utac_acc__Specification5_spec__2_#t~ret67 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret67;havoc __utac_acc__Specification5_spec__2_#t~ret67; 366#L833 assume !(0 != ~pumpRunning~0); 344#L112 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 345#L144 assume !(0 == ~pumpRunning~0); 342#L119 havoc __utac_acc__Specification5_spec__3_#t~ret68, __utac_acc__Specification5_spec__3_#t~ret69, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 326#L941 __utac_acc__Specification5_spec__3_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret68;havoc __utac_acc__Specification5_spec__3_#t~ret68; 276#L844 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 261#L844-1 [2021-08-31 04:12:07,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:07,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-31 04:12:07,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:07,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430472909] [2021-08-31 04:12:07,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:07,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:07,663 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:12:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:07,699 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:12:07,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:07,699 INFO L82 PathProgramCache]: Analyzing trace with hash -572531389, now seen corresponding path program 1 times [2021-08-31 04:12:07,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:07,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178663931] [2021-08-31 04:12:07,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:07,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:12:07,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:12:07,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:12:07,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178663931] [2021-08-31 04:12:07,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178663931] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:12:07,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:12:07,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 04:12:07,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892626222] [2021-08-31 04:12:07,718 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 04:12:07,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:12:07,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 04:12:07,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 04:12:07,718 INFO L87 Difference]: Start difference. First operand 149 states and 215 transitions. cyclomatic complexity: 69 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-08-31 04:12:07,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:12:07,957 INFO L93 Difference]: Finished difference Result 248 states and 343 transitions. [2021-08-31 04:12:07,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 04:12:07,958 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 248 states and 343 transitions. [2021-08-31 04:12:07,960 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 179 [2021-08-31 04:12:07,962 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 248 states to 248 states and 343 transitions. [2021-08-31 04:12:07,962 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 248 [2021-08-31 04:12:07,962 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 248 [2021-08-31 04:12:07,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 248 states and 343 transitions. [2021-08-31 04:12:07,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:12:07,963 INFO L681 BuchiCegarLoop]: Abstraction has 248 states and 343 transitions. [2021-08-31 04:12:07,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states and 343 transitions. [2021-08-31 04:12:07,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2021-08-31 04:12:07,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 248 states have (on average 1.3830645161290323) internal successors, (343), 247 states have internal predecessors, (343), 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) [2021-08-31 04:12:07,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 343 transitions. [2021-08-31 04:12:07,977 INFO L704 BuchiCegarLoop]: Abstraction has 248 states and 343 transitions. [2021-08-31 04:12:07,977 INFO L587 BuchiCegarLoop]: Abstraction has 248 states and 343 transitions. [2021-08-31 04:12:07,977 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 04:12:07,977 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 248 states and 343 transitions. [2021-08-31 04:12:07,978 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 179 [2021-08-31 04:12:07,979 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:12:07,979 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:12:07,979 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:07,979 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] [2021-08-31 04:12:07,979 INFO L791 eck$LassoCheckResult]: Stem: 758#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 745#L-1 havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 746#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 757#L75 main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 762#L802 assume 0 != main_~tmp~6; 710#L777 ~switchedOnBeforeTS~0 := 0; 663#L823 havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 664#L844-1 [2021-08-31 04:12:07,980 INFO L793 eck$LassoCheckResult]: Loop: 664#L844-1 assume !false; 792#L660 assume test_~splverifierCounter~0 < 4; 791#L661 test_~tmp~5 := test_#t~nondet62;havoc test_#t~nondet62; 790#L669 assume !(0 != test_~tmp~5); 789#L669-1 test_~tmp___0~1 := test_#t~nondet63;havoc test_#t~nondet63; 808#L679 assume !(0 != test_~tmp___0~1); 806#L679-1 test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 805#L689 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 700#L697-1 havoc __utac_acc__Specification5_spec__2_#t~ret67;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 676#L197 __utac_acc__Specification5_spec__2_#t~ret67 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret67;havoc __utac_acc__Specification5_spec__2_#t~ret67; 677#L833 assume !(0 != ~pumpRunning~0); 752#L112 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 678#L144 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret26, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~1, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~1;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 679#L949 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 747#L954 isHighWaterLevel_#t~ret26 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~1 := isHighWaterLevel_#t~ret26;havoc isHighWaterLevel_#t~ret26; 770#L246 assume 0 != isHighWaterLevel_~tmp~1;isHighWaterLevel_~tmp___0~0 := 0; 698#L246-2 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 699#L252 processEnvironment_#t~ret8 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret8;havoc processEnvironment_#t~ret8; 722#L148 assume !(0 != processEnvironment_~tmp~0); 724#L119 havoc __utac_acc__Specification5_spec__3_#t~ret68, __utac_acc__Specification5_spec__3_#t~ret69, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 797#L941 __utac_acc__Specification5_spec__3_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret68;havoc __utac_acc__Specification5_spec__3_#t~ret68; 793#L844 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 664#L844-1 [2021-08-31 04:12:07,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:07,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-08-31 04:12:07,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:07,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510592761] [2021-08-31 04:12:07,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:07,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:08,038 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:12:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:08,083 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:12:08,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:08,084 INFO L82 PathProgramCache]: Analyzing trace with hash -535419313, now seen corresponding path program 1 times [2021-08-31 04:12:08,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:08,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731090272] [2021-08-31 04:12:08,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:08,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:12:08,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:12:08,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:12:08,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731090272] [2021-08-31 04:12:08,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731090272] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:12:08,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:12:08,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-31 04:12:08,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903989307] [2021-08-31 04:12:08,114 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 04:12:08,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:12:08,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-31 04:12:08,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-31 04:12:08,115 INFO L87 Difference]: Start difference. First operand 248 states and 343 transitions. cyclomatic complexity: 98 Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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) [2021-08-31 04:12:08,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:12:08,649 INFO L93 Difference]: Finished difference Result 923 states and 1283 transitions. [2021-08-31 04:12:08,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-31 04:12:08,651 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 923 states and 1283 transitions. [2021-08-31 04:12:08,656 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 662 [2021-08-31 04:12:08,659 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 923 states to 923 states and 1283 transitions. [2021-08-31 04:12:08,659 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 923 [2021-08-31 04:12:08,660 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 923 [2021-08-31 04:12:08,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 923 states and 1283 transitions. [2021-08-31 04:12:08,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:12:08,662 INFO L681 BuchiCegarLoop]: Abstraction has 923 states and 1283 transitions. [2021-08-31 04:12:08,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states and 1283 transitions. [2021-08-31 04:12:08,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 483. [2021-08-31 04:12:08,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 483 states have (on average 1.3561076604554865) internal successors, (655), 482 states have internal predecessors, (655), 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) [2021-08-31 04:12:08,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 655 transitions. [2021-08-31 04:12:08,687 INFO L704 BuchiCegarLoop]: Abstraction has 483 states and 655 transitions. [2021-08-31 04:12:08,687 INFO L587 BuchiCegarLoop]: Abstraction has 483 states and 655 transitions. [2021-08-31 04:12:08,688 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-31 04:12:08,688 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 483 states and 655 transitions. [2021-08-31 04:12:08,690 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 354 [2021-08-31 04:12:08,690 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:12:08,690 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:12:08,692 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:08,692 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:08,692 INFO L791 eck$LassoCheckResult]: Stem: 1948#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1936#L-1 havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 1937#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1947#L75 main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 1951#L802 assume 0 != main_~tmp~6; 1900#L777 ~switchedOnBeforeTS~0 := 0; 1853#L823 havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1854#L844-1 [2021-08-31 04:12:08,692 INFO L793 eck$LassoCheckResult]: Loop: 1854#L844-1 assume !false; 2120#L660 assume test_~splverifierCounter~0 < 4; 2119#L661 test_~tmp~5 := test_#t~nondet62;havoc test_#t~nondet62; 2118#L669 assume !(0 != test_~tmp~5); 2116#L669-1 test_~tmp___0~1 := test_#t~nondet63;havoc test_#t~nondet63; 2115#L679 assume !(0 != test_~tmp___0~1); 2113#L679-1 test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 2112#L689 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2079#L697-1 havoc __utac_acc__Specification5_spec__2_#t~ret67;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 2147#L197 __utac_acc__Specification5_spec__2_#t~ret67 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret67;havoc __utac_acc__Specification5_spec__2_#t~ret67; 1942#L833 assume !(0 != ~pumpRunning~0); 1943#L112 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 1865#L144 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret26, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~1, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~1;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1866#L949 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1938#L954 isHighWaterLevel_#t~ret26 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~1 := isHighWaterLevel_#t~ret26;havoc isHighWaterLevel_#t~ret26; 1956#L246 assume 0 != isHighWaterLevel_~tmp~1;isHighWaterLevel_~tmp___0~0 := 0; 1891#L246-2 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1892#L252 processEnvironment_#t~ret8 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret8;havoc processEnvironment_#t~ret8; 1915#L148 assume !(0 != processEnvironment_~tmp~0); 1917#L119 havoc __utac_acc__Specification5_spec__3_#t~ret68, __utac_acc__Specification5_spec__3_#t~ret69, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 2126#L941 __utac_acc__Specification5_spec__3_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret68;havoc __utac_acc__Specification5_spec__3_#t~ret68; 2125#L844 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 2124#L197-1 __utac_acc__Specification5_spec__3_#t~ret69 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret69;havoc __utac_acc__Specification5_spec__3_#t~ret69; 2123#L848 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1854#L844-1 [2021-08-31 04:12:08,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:08,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-08-31 04:12:08,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:08,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635951452] [2021-08-31 04:12:08,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:08,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:08,723 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:12:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:08,771 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:12:08,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:08,772 INFO L82 PathProgramCache]: Analyzing trace with hash 858102058, now seen corresponding path program 1 times [2021-08-31 04:12:08,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:08,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311300493] [2021-08-31 04:12:08,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:08,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:08,781 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:12:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:08,790 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:12:08,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:08,790 INFO L82 PathProgramCache]: Analyzing trace with hash 717508720, now seen corresponding path program 1 times [2021-08-31 04:12:08,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:08,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225668910] [2021-08-31 04:12:08,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:08,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:08,825 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:12:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:08,854 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:12:48,400 WARN L210 SmtUtils]: Spent 39.32s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-31 04:13:29,037 WARN L210 SmtUtils]: Spent 19.78s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-31 04:13:29,122 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) at de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData.toString(StatisticsData.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerTimingBenchmark.toString(BuchiAutomizerTimingBenchmark.java:44) at de.uni_freiburg.informatik.ultimate.core.lib.results.StatisticsResult.getLongDescription(StatisticsResult.java:58) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.reportResult(BuchiAutomizerObserver.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-31 04:13:29,124 INFO L158 Benchmark]: Toolchain (without parser) took 83349.74ms. Allocated memory was 60.8MB in the beginning and 102.8MB in the end (delta: 41.9MB). Free memory was 38.8MB in the beginning and 67.8MB in the end (delta: -29.1MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2021-08-31 04:13:29,124 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 60.8MB. Free memory was 43.3MB in the beginning and 43.3MB in the end (delta: 38.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 04:13:29,124 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.30ms. Allocated memory is still 60.8MB. Free memory was 38.6MB in the beginning and 36.3MB in the end (delta: 2.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-31 04:13:29,125 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.97ms. Allocated memory is still 60.8MB. Free memory was 36.1MB in the beginning and 33.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 04:13:29,125 INFO L158 Benchmark]: Boogie Preprocessor took 44.10ms. Allocated memory is still 60.8MB. Free memory was 33.1MB in the beginning and 30.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 04:13:29,126 INFO L158 Benchmark]: RCFGBuilder took 534.23ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 30.9MB in the beginning and 52.9MB in the end (delta: -22.0MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2021-08-31 04:13:29,126 INFO L158 Benchmark]: BuchiAutomizer took 82328.03ms. Allocated memory was 77.6MB in the beginning and 102.8MB in the end (delta: 25.2MB). Free memory was 52.9MB in the beginning and 67.8MB in the end (delta: -14.9MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2021-08-31 04:13:29,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 60.8MB. Free memory was 43.3MB in the beginning and 43.3MB in the end (delta: 38.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.30ms. Allocated memory is still 60.8MB. Free memory was 38.6MB in the beginning and 36.3MB in the end (delta: 2.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.97ms. Allocated memory is still 60.8MB. Free memory was 36.1MB in the beginning and 33.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.10ms. Allocated memory is still 60.8MB. Free memory was 33.1MB in the beginning and 30.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 534.23ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 30.9MB in the beginning and 52.9MB in the end (delta: -22.0MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 82328.03ms. Allocated memory was 77.6MB in the beginning and 102.8MB in the end (delta: 25.2MB). Free memory was 52.9MB in the beginning and 67.8MB in the end (delta: -14.9MB). Peak memory consumption was 67.1MB. 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 483 locations. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6): de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-31 04:13:29,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...