./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product60.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_spec2_product60.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 d3ca886cbb93ac9ab3a93e98b7567227967813c9 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:53:49,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 03:53:49,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 03:53:49,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 03:53:49,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 03:53:49,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 03:53:49,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 03:53:49,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 03:53:49,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 03:53:49,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 03:53:49,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 03:53:49,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 03:53:49,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 03:53:49,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 03:53:49,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 03:53:49,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 03:53:49,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 03:53:49,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 03:53:49,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 03:53:49,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 03:53:49,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 03:53:49,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 03:53:49,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 03:53:49,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 03:53:49,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 03:53:49,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 03:53:49,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 03:53:49,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 03:53:49,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 03:53:49,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 03:53:49,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 03:53:49,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 03:53:49,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 03:53:49,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 03:53:49,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 03:53:49,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 03:53:49,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 03:53:49,723 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 03:53:49,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 03:53:49,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 03:53:49,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 03:53:49,729 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 03:53:49,764 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 03:53:49,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 03:53:49,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 03:53:49,765 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 03:53:49,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 03:53:49,767 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 03:53:49,767 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 03:53:49,767 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 03:53:49,767 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 03:53:49,768 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 03:53:49,768 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 03:53:49,769 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 03:53:49,769 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 03:53:49,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 03:53:49,769 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 03:53:49,769 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 03:53:49,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 03:53:49,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 03:53:49,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 03:53:49,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 03:53:49,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 03:53:49,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 03:53:49,771 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 03:53:49,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 03:53:49,771 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 03:53:49,771 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 03:53:49,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 03:53:49,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 03:53:49,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 03:53:49,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 03:53:49,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 03:53:49,772 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 03:53:49,773 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 03:53:49,773 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3ca886cbb93ac9ab3a93e98b7567227967813c9 [2021-08-31 03:53:50,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 03:53:50,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 03:53:50,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 03:53:50,094 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 03:53:50,095 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 03:53:50,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c [2021-08-31 03:53:50,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e7decfda/c5fca1289f474a89ad736893804fab56/FLAG6430a7ca4 [2021-08-31 03:53:50,604 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 03:53:50,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c [2021-08-31 03:53:50,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e7decfda/c5fca1289f474a89ad736893804fab56/FLAG6430a7ca4 [2021-08-31 03:53:50,954 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e7decfda/c5fca1289f474a89ad736893804fab56 [2021-08-31 03:53:50,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 03:53:50,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 03:53:50,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 03:53:50,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 03:53:50,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 03:53:50,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:53:50" (1/1) ... [2021-08-31 03:53:50,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ffab04e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:53:50, skipping insertion in model container [2021-08-31 03:53:50,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:53:50" (1/1) ... [2021-08-31 03:53:50,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 03:53:51,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 03:53:51,133 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_spec2_product60.cil.c[2917,2930] [2021-08-31 03:53:51,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 03:53:51,245 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 03:53:51,261 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_spec2_product60.cil.c[2917,2930] [2021-08-31 03:53:51,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 03:53:51,339 INFO L208 MainTranslator]: Completed translation [2021-08-31 03:53:51,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:53:51 WrapperNode [2021-08-31 03:53:51,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 03:53:51,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 03:53:51,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 03:53:51,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 03:53:51,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:53:51" (1/1) ... [2021-08-31 03:53:51,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:53:51" (1/1) ... [2021-08-31 03:53:51,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 03:53:51,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 03:53:51,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 03:53:51,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 03:53:51,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:53:51" (1/1) ... [2021-08-31 03:53:51,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:53:51" (1/1) ... [2021-08-31 03:53:51,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:53:51" (1/1) ... [2021-08-31 03:53:51,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:53:51" (1/1) ... [2021-08-31 03:53:51,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:53:51" (1/1) ... [2021-08-31 03:53:51,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:53:51" (1/1) ... [2021-08-31 03:53:51,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:53:51" (1/1) ... [2021-08-31 03:53:51,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 03:53:51,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 03:53:51,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 03:53:51,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 03:53:51,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:53:51" (1/1) ... [2021-08-31 03:53:51,514 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:53:51,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:53:51,538 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 03:53:51,565 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 03:53:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 03:53:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-31 03:53:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 03:53:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 03:53:52,111 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 03:53:52,111 INFO L299 CfgBuilder]: Removed 200 assume(true) statements. [2021-08-31 03:53:52,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:53:52 BoogieIcfgContainer [2021-08-31 03:53:52,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 03:53:52,114 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 03:53:52,114 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 03:53:52,116 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 03:53:52,117 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 03:53:52,117 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 03:53:50" (1/3) ... [2021-08-31 03:53:52,118 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f59c060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 03:53:52, skipping insertion in model container [2021-08-31 03:53:52,118 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 03:53:52,118 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:53:51" (2/3) ... [2021-08-31 03:53:52,118 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f59c060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 03:53:52, skipping insertion in model container [2021-08-31 03:53:52,118 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 03:53:52,119 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:53:52" (3/3) ... [2021-08-31 03:53:52,120 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product60.cil.c [2021-08-31 03:53:52,162 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 03:53:52,163 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 03:53:52,163 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 03:53:52,163 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 03:53:52,163 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 03:53:52,163 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 03:53:52,163 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 03:53:52,163 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 03:53:52,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 138 states, 137 states have (on average 1.5182481751824817) internal successors, (208), 137 states have internal predecessors, (208), 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 03:53:52,206 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2021-08-31 03:53:52,207 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:53:52,207 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:53:52,213 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:53:52,213 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:53:52,213 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 03:53:52,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 138 states, 137 states have (on average 1.5182481751824817) internal successors, (208), 137 states have internal predecessors, (208), 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 03:53:52,221 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2021-08-31 03:53:52,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:53:52,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:53:52,222 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:53:52,223 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:53:52,229 INFO L791 eck$LassoCheckResult]: Stem: 126#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);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(75, #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(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 48#L-1true havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 36#L288true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 63#L296true main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 62#L252true assume 0 != main_~tmp~0; 76#L223true ~methAndRunningLastTime~0 := 0; 120#L986true havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 105#L997-1true [2021-08-31 03:53:52,229 INFO L793 eck$LassoCheckResult]: Loop: 105#L997-1true assume !false; 117#L314true assume test_~splverifierCounter~0 < 4; 53#L315true test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 5#L323true assume !(0 != test_~tmp~1); 101#L323-1true test_~tmp___0~0 := test_#t~nondet20;havoc test_#t~nondet20; 72#L333true assume !(0 != test_~tmp___0~0); 118#L333-1true test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 102#L343true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 37#L351-1true assume !(0 != ~pumpRunning~0); 7#L749true assume !(0 != ~systemActive~0); 87#L756true havoc __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_#t~ret81, __utac_acc__Specification2_spec__2_~tmp~10, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~10;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 110#L93-2true __utac_acc__Specification2_spec__2_#t~ret80 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~10 := __utac_acc__Specification2_spec__2_#t~ret80;havoc __utac_acc__Specification2_spec__2_#t~ret80; 90#L997true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~10);~methAndRunningLastTime~0 := 0; 105#L997-1true [2021-08-31 03:53:52,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:53:52,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-31 03:53:52,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:53:52,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351282758] [2021-08-31 03:53:52,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:53:52,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:53:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:53:52,404 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:53:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:53:52,574 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:53:52,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:53:52,585 INFO L82 PathProgramCache]: Analyzing trace with hash 14728148, now seen corresponding path program 1 times [2021-08-31 03:53:52,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:53:52,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677256799] [2021-08-31 03:53:52,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:53:52,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:53:52,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:53:52,695 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 03:53:52,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 03:53:52,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677256799] [2021-08-31 03:53:52,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677256799] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 03:53:52,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 03:53:52,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 03:53:52,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265122022] [2021-08-31 03:53:52,700 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 03:53:52,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 03:53:52,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 03:53:52,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 03:53:52,736 INFO L87 Difference]: Start difference. First operand has 138 states, 137 states have (on average 1.5182481751824817) internal successors, (208), 137 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 03:53:53,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 03:53:53,347 INFO L93 Difference]: Finished difference Result 269 states and 391 transitions. [2021-08-31 03:53:53,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 03:53:53,361 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 269 states and 391 transitions. [2021-08-31 03:53:53,368 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 174 [2021-08-31 03:53:53,380 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 269 states to 255 states and 376 transitions. [2021-08-31 03:53:53,383 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 255 [2021-08-31 03:53:53,384 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 255 [2021-08-31 03:53:53,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 255 states and 376 transitions. [2021-08-31 03:53:53,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 03:53:53,388 INFO L681 BuchiCegarLoop]: Abstraction has 255 states and 376 transitions. [2021-08-31 03:53:53,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states and 376 transitions. [2021-08-31 03:53:53,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 253. [2021-08-31 03:53:53,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 253 states have (on average 1.4743083003952568) internal successors, (373), 252 states have internal predecessors, (373), 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 03:53:53,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 373 transitions. [2021-08-31 03:53:53,433 INFO L704 BuchiCegarLoop]: Abstraction has 253 states and 373 transitions. [2021-08-31 03:53:53,433 INFO L587 BuchiCegarLoop]: Abstraction has 253 states and 373 transitions. [2021-08-31 03:53:53,433 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 03:53:53,433 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 253 states and 373 transitions. [2021-08-31 03:53:53,437 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 172 [2021-08-31 03:53:53,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:53:53,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:53:53,438 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:53:53,438 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:53:53,438 INFO L791 eck$LassoCheckResult]: Stem: 561#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);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(75, #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(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 495#L-1 havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 474#L288 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 475#L296 main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 512#L252 assume 0 != main_~tmp~0; 513#L223 ~methAndRunningLastTime~0 := 0; 527#L986 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 557#L997-1 [2021-08-31 03:53:53,439 INFO L793 eck$LassoCheckResult]: Loop: 557#L997-1 assume !false; 574#L314 assume test_~splverifierCounter~0 < 4; 573#L315 test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 572#L323 assume !(0 != test_~tmp~1); 544#L323-1 test_~tmp___0~0 := test_#t~nondet20;havoc test_#t~nondet20; 523#L333 assume !(0 != test_~tmp___0~0); 435#L333-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 545#L343 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 476#L351-1 assume !(0 != ~pumpRunning~0); 422#L749 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 423#L807 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret58, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 585#L781-1 assume !(0 == ~pumpRunning~0); 535#L756 havoc __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_#t~ret81, __utac_acc__Specification2_spec__2_~tmp~10, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~10;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 536#L93-2 __utac_acc__Specification2_spec__2_#t~ret80 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~10 := __utac_acc__Specification2_spec__2_#t~ret80;havoc __utac_acc__Specification2_spec__2_#t~ret80; 550#L997 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~10);~methAndRunningLastTime~0 := 0; 557#L997-1 [2021-08-31 03:53:53,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:53:53,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-31 03:53:53,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:53:53,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734178708] [2021-08-31 03:53:53,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:53:53,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:53:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:53:53,480 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:53:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:53:53,542 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:53:53,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:53:53,543 INFO L82 PathProgramCache]: Analyzing trace with hash -2011842179, now seen corresponding path program 1 times [2021-08-31 03:53:53,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:53:53,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006540735] [2021-08-31 03:53:53,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:53:53,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:53:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:53:53,562 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 03:53:53,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 03:53:53,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006540735] [2021-08-31 03:53:53,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006540735] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 03:53:53,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 03:53:53,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 03:53:53,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440743435] [2021-08-31 03:53:53,567 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 03:53:53,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 03:53:53,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 03:53:53,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 03:53:53,569 INFO L87 Difference]: Start difference. First operand 253 states and 373 transitions. cyclomatic complexity: 123 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 03:53:53,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 03:53:53,917 INFO L93 Difference]: Finished difference Result 342 states and 485 transitions. [2021-08-31 03:53:53,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 03:53:53,918 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 342 states and 485 transitions. [2021-08-31 03:53:53,921 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2021-08-31 03:53:53,924 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 342 states to 342 states and 485 transitions. [2021-08-31 03:53:53,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 342 [2021-08-31 03:53:53,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 342 [2021-08-31 03:53:53,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 342 states and 485 transitions. [2021-08-31 03:53:53,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 03:53:53,927 INFO L681 BuchiCegarLoop]: Abstraction has 342 states and 485 transitions. [2021-08-31 03:53:53,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states and 485 transitions. [2021-08-31 03:53:53,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-08-31 03:53:53,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 342 states have (on average 1.4181286549707601) internal successors, (485), 341 states have internal predecessors, (485), 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 03:53:53,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 485 transitions. [2021-08-31 03:53:53,948 INFO L704 BuchiCegarLoop]: Abstraction has 342 states and 485 transitions. [2021-08-31 03:53:53,948 INFO L587 BuchiCegarLoop]: Abstraction has 342 states and 485 transitions. [2021-08-31 03:53:53,948 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 03:53:53,948 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 342 states and 485 transitions. [2021-08-31 03:53:53,950 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2021-08-31 03:53:53,950 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:53:53,950 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:53:53,951 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:53:53,952 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] [2021-08-31 03:53:53,952 INFO L791 eck$LassoCheckResult]: Stem: 1170#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);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(75, #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(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 1095#L-1 havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 1075#L288 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 1076#L296 main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 1111#L252 assume 0 != main_~tmp~0; 1112#L223 ~methAndRunningLastTime~0 := 0; 1125#L986 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1165#L997-1 [2021-08-31 03:53:53,953 INFO L793 eck$LassoCheckResult]: Loop: 1165#L997-1 assume !false; 1204#L314 assume test_~splverifierCounter~0 < 4; 1199#L315 test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 1200#L323 assume !(0 != test_~tmp~1); 1194#L323-1 test_~tmp___0~0 := test_#t~nondet20;havoc test_#t~nondet20; 1195#L333 assume !(0 != test_~tmp___0~0); 1186#L333-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 1187#L343 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1077#L351-1 assume !(0 != ~pumpRunning~0); 1023#L749 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1024#L807 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret58, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1032#L781-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret78, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1046#L133-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1088#L138-1 isHighWaterLevel_#t~ret78 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret78;havoc isHighWaterLevel_#t~ret78; 1089#L927-3 assume !(0 != isHighWaterLevel_~tmp~8);isHighWaterLevel_~tmp___0~1 := 1; 1113#L927-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1250#L933-1 processEnvironment__wrappee__highWaterSensor_#t~ret58 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret58;havoc processEnvironment__wrappee__highWaterSensor_#t~ret58; 1248#L785-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 1133#L756 havoc __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_#t~ret81, __utac_acc__Specification2_spec__2_~tmp~10, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~10;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1210#L93-2 __utac_acc__Specification2_spec__2_#t~ret80 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~10 := __utac_acc__Specification2_spec__2_#t~ret80;havoc __utac_acc__Specification2_spec__2_#t~ret80; 1211#L997 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~10);~methAndRunningLastTime~0 := 0; 1165#L997-1 [2021-08-31 03:53:53,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:53:53,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-08-31 03:53:53,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:53:53,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937504179] [2021-08-31 03:53:53,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:53:53,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:53:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:53:54,002 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:53:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:53:54,079 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:53:54,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:53:54,084 INFO L82 PathProgramCache]: Analyzing trace with hash 235083, now seen corresponding path program 1 times [2021-08-31 03:53:54,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:53:54,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039316297] [2021-08-31 03:53:54,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:53:54,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:53:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:53:54,116 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 03:53:54,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 03:53:54,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039316297] [2021-08-31 03:53:54,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039316297] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 03:53:54,117 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 03:53:54,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-31 03:53:54,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548458464] [2021-08-31 03:53:54,118 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 03:53:54,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 03:53:54,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-31 03:53:54,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-31 03:53:54,119 INFO L87 Difference]: Start difference. First operand 342 states and 485 transitions. cyclomatic complexity: 146 Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 03:53:54,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 03:53:54,710 INFO L93 Difference]: Finished difference Result 665 states and 927 transitions. [2021-08-31 03:53:54,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-31 03:53:54,712 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 665 states and 927 transitions. [2021-08-31 03:53:54,716 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 470 [2021-08-31 03:53:54,721 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 665 states to 665 states and 927 transitions. [2021-08-31 03:53:54,721 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 665 [2021-08-31 03:53:54,722 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 665 [2021-08-31 03:53:54,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 665 states and 927 transitions. [2021-08-31 03:53:54,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 03:53:54,727 INFO L681 BuchiCegarLoop]: Abstraction has 665 states and 927 transitions. [2021-08-31 03:53:54,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states and 927 transitions. [2021-08-31 03:53:54,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 366. [2021-08-31 03:53:54,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 366 states have (on average 1.3907103825136613) internal successors, (509), 365 states have internal predecessors, (509), 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 03:53:54,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 509 transitions. [2021-08-31 03:53:54,751 INFO L704 BuchiCegarLoop]: Abstraction has 366 states and 509 transitions. [2021-08-31 03:53:54,751 INFO L587 BuchiCegarLoop]: Abstraction has 366 states and 509 transitions. [2021-08-31 03:53:54,751 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-31 03:53:54,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 366 states and 509 transitions. [2021-08-31 03:53:54,754 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2021-08-31 03:53:54,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:53:54,755 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:53:54,757 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:53:54,757 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] [2021-08-31 03:53:54,758 INFO L791 eck$LassoCheckResult]: Stem: 2203#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);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(75, #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(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 2116#L-1 havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 2094#L288 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 2095#L296 main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 2133#L252 assume 0 != main_~tmp~0; 2134#L223 ~methAndRunningLastTime~0 := 0; 2149#L986 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2182#L997-1 [2021-08-31 03:53:54,758 INFO L793 eck$LassoCheckResult]: Loop: 2182#L997-1 assume !false; 2183#L314 assume test_~splverifierCounter~0 < 4; 2223#L315 test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 2220#L323 assume !(0 != test_~tmp~1); 2219#L323-1 test_~tmp___0~0 := test_#t~nondet20;havoc test_#t~nondet20; 2215#L333 assume !(0 != test_~tmp___0~0); 2214#L333-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 2208#L343 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2210#L351-1 assume !(0 != ~pumpRunning~0); 2040#L749 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 2041#L807 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret58, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 2049#L781-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret78, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 2063#L133-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 2227#L138-1 isHighWaterLevel_#t~ret78 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret78;havoc isHighWaterLevel_#t~ret78; 2228#L927-3 assume !(0 != isHighWaterLevel_~tmp~8);isHighWaterLevel_~tmp___0~1 := 1; 2280#L927-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 2279#L933-1 processEnvironment__wrappee__highWaterSensor_#t~ret58 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret58;havoc processEnvironment__wrappee__highWaterSensor_#t~ret58; 2277#L785-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 2263#L756 havoc __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_#t~ret81, __utac_acc__Specification2_spec__2_~tmp~10, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~10;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 2236#L93-2 __utac_acc__Specification2_spec__2_#t~ret80 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~10 := __utac_acc__Specification2_spec__2_#t~ret80;havoc __utac_acc__Specification2_spec__2_#t~ret80; 2237#L997 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~10);~methAndRunningLastTime~0 := 0; 2182#L997-1 [2021-08-31 03:53:54,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:53:54,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-08-31 03:53:54,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:53:54,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441231553] [2021-08-31 03:53:54,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:53:54,759 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:53:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:53:54,802 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:53:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:53:54,849 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:53:54,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:53:54,850 INFO L82 PathProgramCache]: Analyzing trace with hash 680293453, now seen corresponding path program 1 times [2021-08-31 03:53:54,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:53:54,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737029103] [2021-08-31 03:53:54,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:53:54,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:53:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:53:54,901 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 03:53:54,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 03:53:54,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737029103] [2021-08-31 03:53:54,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737029103] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 03:53:54,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 03:53:54,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-31 03:53:54,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468041240] [2021-08-31 03:53:54,903 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 03:53:54,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 03:53:54,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-31 03:53:54,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-31 03:53:54,905 INFO L87 Difference]: Start difference. First operand 366 states and 509 transitions. cyclomatic complexity: 146 Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 03:53:55,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 03:53:55,804 INFO L93 Difference]: Finished difference Result 1095 states and 1523 transitions. [2021-08-31 03:53:55,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-31 03:53:55,805 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1095 states and 1523 transitions. [2021-08-31 03:53:55,812 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 788 [2021-08-31 03:53:55,819 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1095 states to 1095 states and 1523 transitions. [2021-08-31 03:53:55,819 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1095 [2021-08-31 03:53:55,821 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1095 [2021-08-31 03:53:55,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1095 states and 1523 transitions. [2021-08-31 03:53:55,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 03:53:55,826 INFO L681 BuchiCegarLoop]: Abstraction has 1095 states and 1523 transitions. [2021-08-31 03:53:55,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states and 1523 transitions. [2021-08-31 03:53:55,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 402. [2021-08-31 03:53:55,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 402 states have (on average 1.355721393034826) internal successors, (545), 401 states have internal predecessors, (545), 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 03:53:55,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 545 transitions. [2021-08-31 03:53:55,843 INFO L704 BuchiCegarLoop]: Abstraction has 402 states and 545 transitions. [2021-08-31 03:53:55,843 INFO L587 BuchiCegarLoop]: Abstraction has 402 states and 545 transitions. [2021-08-31 03:53:55,844 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-31 03:53:55,844 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 402 states and 545 transitions. [2021-08-31 03:53:55,846 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 279 [2021-08-31 03:53:55,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:53:55,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:53:55,847 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:53:55,847 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] [2021-08-31 03:53:55,847 INFO L791 eck$LassoCheckResult]: Stem: 3703#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);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(75, #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(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 3593#L-1 havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 3572#L288 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 3573#L296 main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 3615#L252 assume 0 != main_~tmp~0; 3616#L223 ~methAndRunningLastTime~0 := 0; 3633#L986 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3584#L997-1 [2021-08-31 03:53:55,848 INFO L793 eck$LassoCheckResult]: Loop: 3584#L997-1 assume !false; 3755#L314 assume test_~splverifierCounter~0 < 4; 3756#L315 test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 3831#L323 assume !(0 != test_~tmp~1); 3829#L323-1 test_~tmp___0~0 := test_#t~nondet20;havoc test_#t~nondet20; 3828#L333 assume !(0 != test_~tmp___0~0); 3741#L333-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 3742#L343 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3574#L351-1 assume !(0 != ~pumpRunning~0); 3575#L749 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 3824#L807 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret58, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 3823#L781-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret78, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 3822#L133-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 3586#L138-1 isHighWaterLevel_#t~ret78 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret78;havoc isHighWaterLevel_#t~ret78; 3587#L927-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 3786#L927-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 3787#L933-1 processEnvironment__wrappee__highWaterSensor_#t~ret58 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret58;havoc processEnvironment__wrappee__highWaterSensor_#t~ret58; 3779#L785-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 3641#L756 havoc __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_#t~ret81, __utac_acc__Specification2_spec__2_~tmp~10, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~10;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 3682#L93-2 __utac_acc__Specification2_spec__2_#t~ret80 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~10 := __utac_acc__Specification2_spec__2_#t~ret80;havoc __utac_acc__Specification2_spec__2_#t~ret80; 3652#L997 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~10);~methAndRunningLastTime~0 := 0; 3584#L997-1 [2021-08-31 03:53:55,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:53:55,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 5 times [2021-08-31 03:53:55,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:53:55,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895783261] [2021-08-31 03:53:55,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:53:55,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:53:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:53:55,875 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:53:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:53:55,918 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:53:55,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:53:55,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1774772279, now seen corresponding path program 1 times [2021-08-31 03:53:55,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:53:55,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750827314] [2021-08-31 03:53:55,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:53:55,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:53:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:53:55,926 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:53:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:53:55,932 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:53:55,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:53:55,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1630653, now seen corresponding path program 1 times [2021-08-31 03:53:55,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:53:55,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415614887] [2021-08-31 03:53:55,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:53:55,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:53:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:53:55,958 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:53:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:53:56,013 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:54:36,647 WARN L210 SmtUtils]: Spent 40.39s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-31 03:55:18,216 WARN L210 SmtUtils]: Spent 19.85s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-31 03:55:18,305 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 03:55:18,306 INFO L158 Benchmark]: Toolchain (without parser) took 87349.59ms. Allocated memory was 60.8MB in the beginning and 107.0MB in the end (delta: 46.1MB). Free memory was 38.2MB in the beginning and 45.4MB in the end (delta: -7.2MB). Peak memory consumption was 64.6MB. Max. memory is 16.1GB. [2021-08-31 03:55:18,307 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 60.8MB. Free memory was 41.7MB in the beginning and 41.7MB in the end (delta: 28.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 03:55:18,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.01ms. Allocated memory is still 60.8MB. Free memory was 38.0MB in the beginning and 36.1MB in the end (delta: 1.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-31 03:55:18,308 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.92ms. Allocated memory is still 60.8MB. Free memory was 36.0MB in the beginning and 32.0MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-31 03:55:18,308 INFO L158 Benchmark]: Boogie Preprocessor took 77.74ms. Allocated memory is still 60.8MB. Free memory was 32.0MB in the beginning and 29.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 03:55:18,309 INFO L158 Benchmark]: RCFGBuilder took 607.58ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 29.2MB in the beginning and 38.2MB in the end (delta: -9.0MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2021-08-31 03:55:18,311 INFO L158 Benchmark]: BuchiAutomizer took 86191.92ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 38.2MB in the beginning and 45.4MB in the end (delta: -7.2MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2021-08-31 03:55:18,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 60.8MB. Free memory was 41.7MB in the beginning and 41.7MB in the end (delta: 28.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.01ms. Allocated memory is still 60.8MB. Free memory was 38.0MB in the beginning and 36.1MB in the end (delta: 1.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.92ms. Allocated memory is still 60.8MB. Free memory was 36.0MB in the beginning and 32.0MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.74ms. Allocated memory is still 60.8MB. Free memory was 32.0MB in the beginning and 29.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 607.58ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 29.2MB in the beginning and 38.2MB in the end (delta: -9.0MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 86191.92ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 38.2MB in the beginning and 45.4MB in the end (delta: -7.2MB). Peak memory consumption was 51.3MB. 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 402 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 03:55:18,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...