./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product39.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_product39.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 18ffa626b14f3a98f8946a4838c47fc7d91cbcd4 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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 04:12:24,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 04:12:24,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 04:12:24,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 04:12:24,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 04:12:24,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 04:12:24,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 04:12:24,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 04:12:24,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 04:12:24,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 04:12:24,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 04:12:24,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 04:12:24,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 04:12:24,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 04:12:24,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 04:12:24,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 04:12:24,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 04:12:24,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 04:12:24,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 04:12:24,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 04:12:24,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 04:12:24,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 04:12:24,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 04:12:24,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 04:12:24,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 04:12:24,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 04:12:24,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 04:12:24,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 04:12:24,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 04:12:24,083 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 04:12:24,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 04:12:24,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 04:12:24,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 04:12:24,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 04:12:24,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 04:12:24,086 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 04:12:24,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 04:12:24,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 04:12:24,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 04:12:24,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 04:12:24,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 04:12:24,091 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 04:12:24,105 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 04:12:24,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 04:12:24,105 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 04:12:24,106 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 04:12:24,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 04:12:24,106 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 04:12:24,106 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 04:12:24,107 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 04:12:24,107 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 04:12:24,107 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 04:12:24,107 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 04:12:24,107 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 04:12:24,107 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 04:12:24,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 04:12:24,108 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 04:12:24,108 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 04:12:24,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 04:12:24,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 04:12:24,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 04:12:24,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 04:12:24,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 04:12:24,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 04:12:24,114 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 04:12:24,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 04:12:24,115 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 04:12:24,115 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 04:12:24,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 04:12:24,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 04:12:24,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 04:12:24,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 04:12:24,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 04:12:24,116 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 04:12:24,117 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 04:12:24,132 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18ffa626b14f3a98f8946a4838c47fc7d91cbcd4 [2021-08-31 04:12:24,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 04:12:24,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 04:12:24,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 04:12:24,390 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 04:12:24,390 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 04:12:24,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c [2021-08-31 04:12:24,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe38b35f9/8fdc8c59055e436b8afce061a1abe3d6/FLAGb30bb0533 [2021-08-31 04:12:24,886 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 04:12:24,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c [2021-08-31 04:12:24,898 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe38b35f9/8fdc8c59055e436b8afce061a1abe3d6/FLAGb30bb0533 [2021-08-31 04:12:24,909 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe38b35f9/8fdc8c59055e436b8afce061a1abe3d6 [2021-08-31 04:12:24,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 04:12:24,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 04:12:24,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 04:12:24,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 04:12:24,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 04:12:24,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 04:12:24" (1/1) ... [2021-08-31 04:12:24,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2088b2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:24, skipping insertion in model container [2021-08-31 04:12:24,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 04:12:24" (1/1) ... [2021-08-31 04:12:24,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 04:12:24,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 04:12:25,073 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_product39.cil.c[1281,1294] [2021-08-31 04:12:25,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 04:12:25,201 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 04:12:25,223 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_product39.cil.c[1281,1294] [2021-08-31 04:12:25,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 04:12:25,271 INFO L208 MainTranslator]: Completed translation [2021-08-31 04:12:25,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:25 WrapperNode [2021-08-31 04:12:25,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 04:12:25,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 04:12:25,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 04:12:25,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 04:12:25,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:25" (1/1) ... [2021-08-31 04:12:25,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:25" (1/1) ... [2021-08-31 04:12:25,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 04:12:25,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 04:12:25,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 04:12:25,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 04:12:25,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:25" (1/1) ... [2021-08-31 04:12:25,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:25" (1/1) ... [2021-08-31 04:12:25,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:25" (1/1) ... [2021-08-31 04:12:25,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:25" (1/1) ... [2021-08-31 04:12:25,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:25" (1/1) ... [2021-08-31 04:12:25,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:25" (1/1) ... [2021-08-31 04:12:25,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:25" (1/1) ... [2021-08-31 04:12:25,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 04:12:25,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 04:12:25,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 04:12:25,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 04:12:25,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:25" (1/1) ... [2021-08-31 04:12:25,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:12:25,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:12:25,389 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 04:12:25,391 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 04:12:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 04:12:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-31 04:12:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 04:12:25,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 04:12:25,805 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 04:12:25,805 INFO L299 CfgBuilder]: Removed 174 assume(true) statements. [2021-08-31 04:12:25,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 04:12:25 BoogieIcfgContainer [2021-08-31 04:12:25,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 04:12:25,807 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 04:12:25,807 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 04:12:25,809 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 04:12:25,810 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:12:25,810 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 04:12:24" (1/3) ... [2021-08-31 04:12:25,810 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@708985d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 04:12:25, skipping insertion in model container [2021-08-31 04:12:25,811 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:12:25,811 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:12:25" (2/3) ... [2021-08-31 04:12:25,811 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@708985d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 04:12:25, skipping insertion in model container [2021-08-31 04:12:25,811 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:12:25,811 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 04:12:25" (3/3) ... [2021-08-31 04:12:25,812 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product39.cil.c [2021-08-31 04:12:25,837 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 04:12:25,837 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 04:12:25,837 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 04:12:25,837 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 04:12:25,838 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 04:12:25,838 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 04:12:25,838 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 04:12:25,838 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 04:12:25,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 119 states, 118 states have (on average 1.5254237288135593) internal successors, (180), 118 states have internal predecessors, (180), 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 04:12:25,862 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2021-08-31 04:12:25,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:12:25,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:12:25,866 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:25,866 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:25,867 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 04:12:25,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 119 states, 118 states have (on average 1.5254237288135593) internal successors, (180), 118 states have internal predecessors, (180), 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 04:12:25,873 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2021-08-31 04:12:25,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:12:25,873 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:12:25,874 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:25,874 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:25,878 INFO L791 eck$LassoCheckResult]: Stem: 106#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);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(21);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(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 32#L-1true havoc main_#res;havoc main_#t~ret28, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 57#L76true 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; 104#L84true main_#t~ret28 := valid_product_#res;main_~tmp~3 := main_#t~ret28;havoc main_#t~ret28; 119#L384true assume 0 != main_~tmp~3; 14#L358true ~switchedOnBeforeTS~0 := 0; 29#L472true havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 4#L493-1true [2021-08-31 04:12:25,879 INFO L793 eck$LassoCheckResult]: Loop: 4#L493-1true assume !false; 111#L409true assume test_~splverifierCounter~0 < 4; 88#L410true test_~tmp~4 := test_#t~nondet29;havoc test_#t~nondet29; 17#L418true assume !(0 != test_~tmp~4); 8#L418-1true test_~tmp___0~1 := test_#t~nondet30;havoc test_#t~nondet30; 95#L428true assume !(0 != test_~tmp___0~1); 61#L428-1true test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 84#L438true assume 0 != test_~tmp___2~0; 6#L444-1true havoc __utac_acc__Specification5_spec__2_#t~ret33;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; 73#L222true __utac_acc__Specification5_spec__2_#t~ret33 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret33;havoc __utac_acc__Specification5_spec__2_#t~ret33; 50#L482true assume !(0 != ~pumpRunning~0); 21#L111true assume !(0 != ~systemActive~0); 83#L118true havoc __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_#t~ret35, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;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; 55#L956true __utac_acc__Specification5_spec__3_#t~ret34 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret34;havoc __utac_acc__Specification5_spec__3_#t~ret34; 16#L493true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5); 4#L493-1true [2021-08-31 04:12:25,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:25,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-31 04:12:25,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:25,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257562086] [2021-08-31 04:12:25,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:25,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:26,031 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:12:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:26,106 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:12:26,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:26,107 INFO L82 PathProgramCache]: Analyzing trace with hash -240260331, now seen corresponding path program 1 times [2021-08-31 04:12:26,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:26,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748288640] [2021-08-31 04:12:26,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:26,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:26,113 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:12:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:26,119 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:12:26,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:26,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1693764879, now seen corresponding path program 1 times [2021-08-31 04:12:26,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:26,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538687264] [2021-08-31 04:12:26,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:26,120 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:12:26,258 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 04:12:26,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:12:26,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538687264] [2021-08-31 04:12:26,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538687264] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:12:26,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:12:26,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-31 04:12:26,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814168711] [2021-08-31 04:12:26,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:12:26,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-31 04:12:26,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-31 04:12:26,424 INFO L87 Difference]: Start difference. First operand has 119 states, 118 states have (on average 1.5254237288135593) internal successors, (180), 118 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.6666666666666665) 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 04:12:27,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:12:27,053 INFO L93 Difference]: Finished difference Result 289 states and 412 transitions. [2021-08-31 04:12:27,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-31 04:12:27,057 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 289 states and 412 transitions. [2021-08-31 04:12:27,061 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 187 [2021-08-31 04:12:27,069 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 289 states to 268 states and 391 transitions. [2021-08-31 04:12:27,069 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 268 [2021-08-31 04:12:27,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 268 [2021-08-31 04:12:27,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 268 states and 391 transitions. [2021-08-31 04:12:27,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:12:27,072 INFO L681 BuchiCegarLoop]: Abstraction has 268 states and 391 transitions. [2021-08-31 04:12:27,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states and 391 transitions. [2021-08-31 04:12:27,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 161. [2021-08-31 04:12:27,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 161 states have (on average 1.4472049689440993) internal successors, (233), 160 states have internal predecessors, (233), 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 04:12:27,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 233 transitions. [2021-08-31 04:12:27,111 INFO L704 BuchiCegarLoop]: Abstraction has 161 states and 233 transitions. [2021-08-31 04:12:27,111 INFO L587 BuchiCegarLoop]: Abstraction has 161 states and 233 transitions. [2021-08-31 04:12:27,111 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 04:12:27,112 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 161 states and 233 transitions. [2021-08-31 04:12:27,120 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 112 [2021-08-31 04:12:27,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:12:27,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:12:27,121 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:27,121 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:27,122 INFO L791 eck$LassoCheckResult]: Stem: 537#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);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(21);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(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 471#L-1 havoc main_#res;havoc main_#t~ret28, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 472#L76 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; 509#L84 main_#t~ret28 := valid_product_#res;main_~tmp~3 := main_#t~ret28;havoc main_#t~ret28; 536#L384 assume 0 != main_~tmp~3; 445#L358 ~switchedOnBeforeTS~0 := 0; 446#L472 havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 426#L493-1 [2021-08-31 04:12:27,122 INFO L793 eck$LassoCheckResult]: Loop: 426#L493-1 assume !false; 427#L409 assume test_~splverifierCounter~0 < 4; 530#L410 test_~tmp~4 := test_#t~nondet29;havoc test_#t~nondet29; 449#L418 assume !(0 != test_~tmp~4); 433#L418-1 test_~tmp___0~1 := test_#t~nondet30;havoc test_#t~nondet30; 434#L428 assume !(0 != test_~tmp___0~1); 490#L428-1 test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 511#L438 assume 0 != test_~tmp___2~0; 430#L444-1 havoc __utac_acc__Specification5_spec__2_#t~ret33;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; 431#L222 __utac_acc__Specification5_spec__2_#t~ret33 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret33;havoc __utac_acc__Specification5_spec__2_#t~ret33; 499#L482 assume !(0 != ~pumpRunning~0); 455#L111 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 456#L169 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret8, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 497#L143-1 assume !(0 == ~pumpRunning~0); 493#L118 havoc __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_#t~ret35, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;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; 507#L956 __utac_acc__Specification5_spec__3_#t~ret34 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret34;havoc __utac_acc__Specification5_spec__3_#t~ret34; 447#L493 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5); 426#L493-1 [2021-08-31 04:12:27,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:27,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-31 04:12:27,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:27,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909988156] [2021-08-31 04:12:27,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:27,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:27,183 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:12:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:27,243 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:12:27,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:27,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1402231348, now seen corresponding path program 1 times [2021-08-31 04:12:27,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:27,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525280594] [2021-08-31 04:12:27,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:27,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:12:27,277 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 04:12:27,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:12:27,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525280594] [2021-08-31 04:12:27,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525280594] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:12:27,289 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:12:27,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 04:12:27,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94591829] [2021-08-31 04:12:27,290 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 04:12:27,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:12:27,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 04:12:27,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 04:12:27,291 INFO L87 Difference]: Start difference. First operand 161 states and 233 transitions. cyclomatic complexity: 75 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:12:27,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:12:27,506 INFO L93 Difference]: Finished difference Result 208 states and 284 transitions. [2021-08-31 04:12:27,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 04:12:27,507 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 208 states and 284 transitions. [2021-08-31 04:12:27,508 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2021-08-31 04:12:27,509 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 208 states to 208 states and 284 transitions. [2021-08-31 04:12:27,509 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 208 [2021-08-31 04:12:27,509 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 208 [2021-08-31 04:12:27,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 208 states and 284 transitions. [2021-08-31 04:12:27,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:12:27,510 INFO L681 BuchiCegarLoop]: Abstraction has 208 states and 284 transitions. [2021-08-31 04:12:27,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states and 284 transitions. [2021-08-31 04:12:27,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2021-08-31 04:12:27,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 208 states have (on average 1.3653846153846154) internal successors, (284), 207 states have internal predecessors, (284), 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 04:12:27,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 284 transitions. [2021-08-31 04:12:27,516 INFO L704 BuchiCegarLoop]: Abstraction has 208 states and 284 transitions. [2021-08-31 04:12:27,516 INFO L587 BuchiCegarLoop]: Abstraction has 208 states and 284 transitions. [2021-08-31 04:12:27,516 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 04:12:27,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 208 states and 284 transitions. [2021-08-31 04:12:27,517 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2021-08-31 04:12:27,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:12:27,517 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:12:27,517 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:27,517 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:27,517 INFO L791 eck$LassoCheckResult]: Stem: 926#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);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(21);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(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 846#L-1 havoc main_#res;havoc main_#t~ret28, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 847#L76 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; 882#L84 main_#t~ret28 := valid_product_#res;main_~tmp~3 := main_#t~ret28;havoc main_#t~ret28; 925#L384 assume 0 != main_~tmp~3; 820#L358 ~switchedOnBeforeTS~0 := 0; 821#L472 havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 801#L493-1 [2021-08-31 04:12:27,517 INFO L793 eck$LassoCheckResult]: Loop: 801#L493-1 assume !false; 802#L409 assume test_~splverifierCounter~0 < 4; 913#L410 test_~tmp~4 := test_#t~nondet29;havoc test_#t~nondet29; 824#L418 assume !(0 != test_~tmp~4); 808#L418-1 test_~tmp___0~1 := test_#t~nondet30;havoc test_#t~nondet30; 809#L428 assume !(0 != test_~tmp___0~1); 966#L428-1 test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 909#L438 assume 0 != test_~tmp___2~0; 805#L444-1 havoc __utac_acc__Specification5_spec__2_#t~ret33;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; 806#L222 __utac_acc__Specification5_spec__2_#t~ret33 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret33;havoc __utac_acc__Specification5_spec__2_#t~ret33; 872#L482 assume !(0 != ~pumpRunning~0); 830#L111 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 831#L169 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret8, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 871#L143-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret27, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 851#L964-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 852#L969-1 isHighWaterLevel_#t~ret27 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret27;havoc isHighWaterLevel_#t~ret27; 857#L271-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 884#L271-5 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 877#L277-1 processEnvironment__wrappee__highWaterSensor_#t~ret8 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret8;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8; 874#L147-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 867#L118 havoc __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_#t~ret35, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;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; 880#L956 __utac_acc__Specification5_spec__3_#t~ret34 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret34;havoc __utac_acc__Specification5_spec__3_#t~ret34; 822#L493 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5); 801#L493-1 [2021-08-31 04:12:27,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:27,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-08-31 04:12:27,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:27,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371477916] [2021-08-31 04:12:27,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:27,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:27,554 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:12:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:27,596 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:12:27,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:27,597 INFO L82 PathProgramCache]: Analyzing trace with hash 2024417080, now seen corresponding path program 1 times [2021-08-31 04:12:27,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:27,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395061902] [2021-08-31 04:12:27,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:27,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:12:27,620 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 04:12:27,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:12:27,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395061902] [2021-08-31 04:12:27,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395061902] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:12:27,621 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:12:27,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-31 04:12:27,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776110457] [2021-08-31 04:12:27,621 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 04:12:27,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:12:27,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-31 04:12:27,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-31 04:12:27,622 INFO L87 Difference]: Start difference. First operand 208 states and 284 transitions. cyclomatic complexity: 79 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:12:28,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:12:28,173 INFO L93 Difference]: Finished difference Result 556 states and 743 transitions. [2021-08-31 04:12:28,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-31 04:12:28,173 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 556 states and 743 transitions. [2021-08-31 04:12:28,176 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 373 [2021-08-31 04:12:28,178 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 556 states to 556 states and 743 transitions. [2021-08-31 04:12:28,178 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 556 [2021-08-31 04:12:28,179 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 556 [2021-08-31 04:12:28,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 556 states and 743 transitions. [2021-08-31 04:12:28,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:12:28,193 INFO L681 BuchiCegarLoop]: Abstraction has 556 states and 743 transitions. [2021-08-31 04:12:28,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states and 743 transitions. [2021-08-31 04:12:28,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 409. [2021-08-31 04:12:28,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 409 states have (on average 1.3276283618581908) internal successors, (543), 408 states have internal predecessors, (543), 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 04:12:28,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 543 transitions. [2021-08-31 04:12:28,203 INFO L704 BuchiCegarLoop]: Abstraction has 409 states and 543 transitions. [2021-08-31 04:12:28,203 INFO L587 BuchiCegarLoop]: Abstraction has 409 states and 543 transitions. [2021-08-31 04:12:28,203 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-31 04:12:28,203 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 409 states and 543 transitions. [2021-08-31 04:12:28,204 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 296 [2021-08-31 04:12:28,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:12:28,204 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:12:28,205 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:28,205 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:12:28,205 INFO L791 eck$LassoCheckResult]: Stem: 1720#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);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(21);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(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1630#L-1 havoc main_#res;havoc main_#t~ret28, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 1631#L76 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; 1670#L84 main_#t~ret28 := valid_product_#res;main_~tmp~3 := main_#t~ret28;havoc main_#t~ret28; 1719#L384 assume 0 != main_~tmp~3; 1600#L358 ~switchedOnBeforeTS~0 := 0; 1601#L472 havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1581#L493-1 [2021-08-31 04:12:28,205 INFO L793 eck$LassoCheckResult]: Loop: 1581#L493-1 assume !false; 1582#L409 assume test_~splverifierCounter~0 < 4; 1707#L410 test_~tmp~4 := test_#t~nondet29;havoc test_#t~nondet29; 1604#L418 assume !(0 != test_~tmp~4); 1588#L418-1 test_~tmp___0~1 := test_#t~nondet30;havoc test_#t~nondet30; 1589#L428 assume !(0 != test_~tmp___0~1); 1648#L428-1 test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 1673#L438 assume 0 != test_~tmp___2~0; 1585#L444-1 havoc __utac_acc__Specification5_spec__2_#t~ret33;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; 1586#L222 __utac_acc__Specification5_spec__2_#t~ret33 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret33;havoc __utac_acc__Specification5_spec__2_#t~ret33; 1656#L482 assume !(0 != ~pumpRunning~0); 1610#L111 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1611#L169 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret8, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1655#L143-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret27, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1635#L964-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1636#L969-1 isHighWaterLevel_#t~ret27 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret27;havoc isHighWaterLevel_#t~ret27; 1641#L271-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1672#L271-5 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1701#L277-1 processEnvironment__wrappee__highWaterSensor_#t~ret8 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret8;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8; 1658#L147-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1660#L118 havoc __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_#t~ret35, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;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; 1699#L956 __utac_acc__Specification5_spec__3_#t~ret34 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret34;havoc __utac_acc__Specification5_spec__3_#t~ret34; 1602#L493 assume 2 != __utac_acc__Specification5_spec__3_~tmp~5;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; 1603#L222-1 __utac_acc__Specification5_spec__3_#t~ret35 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret35;havoc __utac_acc__Specification5_spec__3_#t~ret35; 1721#L497 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1581#L493-1 [2021-08-31 04:12:28,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:28,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-08-31 04:12:28,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:28,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580425311] [2021-08-31 04:12:28,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:28,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:28,233 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:12:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:28,285 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:12:28,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:28,285 INFO L82 PathProgramCache]: Analyzing trace with hash -155383309, now seen corresponding path program 1 times [2021-08-31 04:12:28,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:28,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816340958] [2021-08-31 04:12:28,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:28,286 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:28,289 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:12:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:28,293 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:12:28,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:12:28,293 INFO L82 PathProgramCache]: Analyzing trace with hash -218809491, now seen corresponding path program 1 times [2021-08-31 04:12:28,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:12:28,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972549519] [2021-08-31 04:12:28,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:12:28,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:12:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:28,344 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:12:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:12:28,379 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:13:12,060 WARN L210 SmtUtils]: Spent 43.48s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-31 04:13:57,649 WARN L210 SmtUtils]: Spent 21.73s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-31 04:13:57,728 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 04:13:57,731 INFO L158 Benchmark]: Toolchain (without parser) took 92818.92ms. Allocated memory was 56.6MB in the beginning and 146.8MB in the end (delta: 90.2MB). Free memory was 34.2MB in the beginning and 95.3MB in the end (delta: -61.2MB). Peak memory consumption was 91.7MB. Max. memory is 16.1GB. [2021-08-31 04:13:57,731 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 56.6MB. Free memory was 38.8MB in the beginning and 38.7MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 04:13:57,732 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.77ms. Allocated memory is still 56.6MB. Free memory was 33.9MB in the beginning and 31.0MB in the end (delta: 3.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-31 04:13:57,732 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.34ms. Allocated memory is still 56.6MB. Free memory was 31.0MB in the beginning and 27.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-31 04:13:57,734 INFO L158 Benchmark]: Boogie Preprocessor took 39.70ms. Allocated memory was 56.6MB in the beginning and 79.7MB in the end (delta: 23.1MB). Free memory was 27.3MB in the beginning and 61.0MB in the end (delta: -33.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-08-31 04:13:57,734 INFO L158 Benchmark]: RCFGBuilder took 457.40ms. Allocated memory is still 79.7MB. Free memory was 61.0MB in the beginning and 43.7MB in the end (delta: 17.3MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2021-08-31 04:13:57,734 INFO L158 Benchmark]: BuchiAutomizer took 91923.23ms. Allocated memory was 79.7MB in the beginning and 146.8MB in the end (delta: 67.1MB). Free memory was 43.7MB in the beginning and 95.3MB in the end (delta: -51.7MB). Peak memory consumption was 78.5MB. Max. memory is 16.1GB. [2021-08-31 04:13:57,736 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 56.6MB. Free memory was 38.8MB in the beginning and 38.7MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.77ms. Allocated memory is still 56.6MB. Free memory was 33.9MB in the beginning and 31.0MB in the end (delta: 3.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.34ms. Allocated memory is still 56.6MB. Free memory was 31.0MB in the beginning and 27.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.70ms. Allocated memory was 56.6MB in the beginning and 79.7MB in the end (delta: 23.1MB). Free memory was 27.3MB in the beginning and 61.0MB in the end (delta: -33.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * RCFGBuilder took 457.40ms. Allocated memory is still 79.7MB. Free memory was 61.0MB in the beginning and 43.7MB in the end (delta: 17.3MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 91923.23ms. Allocated memory was 79.7MB in the beginning and 146.8MB in the end (delta: 67.1MB). Free memory was 43.7MB in the beginning and 95.3MB in the end (delta: -51.7MB). Peak memory consumption was 78.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 409 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 04:13:57,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...