./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product38.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_spec3_product38.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7823238d9993e50be60fbd89a7a2539069d00257 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:58:21,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 03:58:21,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 03:58:21,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 03:58:21,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 03:58:21,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 03:58:21,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 03:58:21,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 03:58:21,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 03:58:21,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 03:58:21,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 03:58:21,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 03:58:21,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 03:58:21,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 03:58:21,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 03:58:21,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 03:58:21,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 03:58:21,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 03:58:21,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 03:58:21,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 03:58:21,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 03:58:21,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 03:58:21,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 03:58:21,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 03:58:21,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 03:58:21,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 03:58:21,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 03:58:21,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 03:58:21,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 03:58:21,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 03:58:21,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 03:58:21,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 03:58:21,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 03:58:21,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 03:58:21,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 03:58:21,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 03:58:21,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 03:58:21,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 03:58:21,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 03:58:21,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 03:58:21,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 03:58:21,133 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 03:58:21,159 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 03:58:21,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 03:58:21,160 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 03:58:21,160 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 03:58:21,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 03:58:21,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 03:58:21,162 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 03:58:21,162 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 03:58:21,162 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 03:58:21,162 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 03:58:21,163 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 03:58:21,163 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 03:58:21,163 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 03:58:21,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 03:58:21,163 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 03:58:21,163 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 03:58:21,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 03:58:21,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 03:58:21,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 03:58:21,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 03:58:21,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 03:58:21,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 03:58:21,164 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 03:58:21,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 03:58:21,165 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 03:58:21,165 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 03:58:21,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 03:58:21,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 03:58:21,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 03:58:21,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 03:58:21,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 03:58:21,166 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 03:58:21,167 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 03:58:21,167 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7823238d9993e50be60fbd89a7a2539069d00257 [2021-08-31 03:58:21,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 03:58:21,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 03:58:21,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 03:58:21,409 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 03:58:21,409 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 03:58:21,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product38.cil.c [2021-08-31 03:58:21,456 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6152e13d/8d3cbad793e248cb8854dfff7bf28ec8/FLAG207ae191d [2021-08-31 03:58:21,846 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 03:58:21,846 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product38.cil.c [2021-08-31 03:58:21,853 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6152e13d/8d3cbad793e248cb8854dfff7bf28ec8/FLAG207ae191d [2021-08-31 03:58:21,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6152e13d/8d3cbad793e248cb8854dfff7bf28ec8 [2021-08-31 03:58:21,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 03:58:21,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 03:58:21,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 03:58:21,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 03:58:21,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 03:58:21,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:58:21" (1/1) ... [2021-08-31 03:58:21,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710ca02a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:58:21, skipping insertion in model container [2021-08-31 03:58:21,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:58:21" (1/1) ... [2021-08-31 03:58:21,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 03:58:21,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 03:58:22,094 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_spec3_product38.cil.c[15098,15111] [2021-08-31 03:58:22,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 03:58:22,122 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 03:58:22,172 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_spec3_product38.cil.c[15098,15111] [2021-08-31 03:58:22,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 03:58:22,209 INFO L208 MainTranslator]: Completed translation [2021-08-31 03:58:22,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:58:22 WrapperNode [2021-08-31 03:58:22,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 03:58:22,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 03:58:22,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 03:58:22,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 03:58:22,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:58:22" (1/1) ... [2021-08-31 03:58:22,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:58:22" (1/1) ... [2021-08-31 03:58:22,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 03:58:22,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 03:58:22,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 03:58:22,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 03:58:22,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:58:22" (1/1) ... [2021-08-31 03:58:22,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:58:22" (1/1) ... [2021-08-31 03:58:22,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:58:22" (1/1) ... [2021-08-31 03:58:22,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:58:22" (1/1) ... [2021-08-31 03:58:22,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:58:22" (1/1) ... [2021-08-31 03:58:22,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:58:22" (1/1) ... [2021-08-31 03:58:22,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:58:22" (1/1) ... [2021-08-31 03:58:22,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 03:58:22,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 03:58:22,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 03:58:22,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 03:58:22,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:58:22" (1/1) ... [2021-08-31 03:58:22,325 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:58:22,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:58:22,350 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 03:58:22,354 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 03:58:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 03:58:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-31 03:58:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 03:58:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 03:58:22,811 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 03:58:22,811 INFO L299 CfgBuilder]: Removed 164 assume(true) statements. [2021-08-31 03:58:22,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:58:22 BoogieIcfgContainer [2021-08-31 03:58:22,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 03:58:22,813 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 03:58:22,813 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 03:58:22,817 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 03:58:22,818 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 03:58:22,818 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 03:58:21" (1/3) ... [2021-08-31 03:58:22,819 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2138bfde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 03:58:22, skipping insertion in model container [2021-08-31 03:58:22,819 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 03:58:22,819 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:58:22" (2/3) ... [2021-08-31 03:58:22,819 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2138bfde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 03:58:22, skipping insertion in model container [2021-08-31 03:58:22,819 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 03:58:22,820 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:58:22" (3/3) ... [2021-08-31 03:58:22,821 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product38.cil.c [2021-08-31 03:58:22,855 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 03:58:22,856 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 03:58:22,856 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 03:58:22,856 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 03:58:22,856 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 03:58:22,856 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 03:58:22,856 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 03:58:22,856 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 03:58:22,872 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 114 states, 113 states have (on average 1.5398230088495575) internal successors, (174), 113 states have internal predecessors, (174), 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 03:58:22,901 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-08-31 03:58:22,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:58:22,902 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:58:22,906 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 03:58:22,907 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:58:22,907 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 03:58:22,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 114 states, 113 states have (on average 1.5398230088495575) internal successors, (174), 113 states have internal predecessors, (174), 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 03:58:22,917 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-08-31 03:58:22,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:58:22,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:58:22,918 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 03:58:22,918 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:58:22,927 INFO L791 eck$LassoCheckResult]: Stem: 96#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);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(21);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(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #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(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 30#L-1true havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 94#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 47#L75true main_#t~ret67 := valid_product_#res;main_~tmp~7 := main_#t~ret67;havoc main_#t~ret67; 7#L804true assume 0 != main_~tmp~7; 72#L781true havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 84#L928-1true [2021-08-31 03:58:22,928 INFO L793 eck$LassoCheckResult]: Loop: 84#L928-1true assume !false; 90#L96true assume test_~splverifierCounter~0 < 4; 59#L97true test_~tmp~0 := test_#t~nondet8;havoc test_#t~nondet8; 15#L105true assume !(0 != test_~tmp~0); 48#L105-1true test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 44#L115true assume !(0 != test_~tmp___0~0); 46#L115-1true test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 70#L125true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 20#L133-2true assume !(0 != ~pumpRunning~0); 5#L168true assume !(0 != ~systemActive~0); 4#L175true havoc __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_#t~ret80, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 116#L862-1true __utac_acc__Specification3_spec__1_#t~ret78 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 99#L922true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 84#L928-1true [2021-08-31 03:58:22,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:58:22,933 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-31 03:58:22,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:58:22,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802762991] [2021-08-31 03:58:22,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:58:22,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:58:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:58:23,120 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:58:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:58:23,205 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:58:23,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:58:23,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1679036362, now seen corresponding path program 1 times [2021-08-31 03:58:23,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:58:23,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968210551] [2021-08-31 03:58:23,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:58:23,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:58:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:58:23,285 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 03:58:23,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 03:58:23,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968210551] [2021-08-31 03:58:23,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968210551] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 03:58:23,286 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 03:58:23,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 03:58:23,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830135164] [2021-08-31 03:58:23,289 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 03:58:23,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 03:58:23,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 03:58:23,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 03:58:23,312 INFO L87 Difference]: Start difference. First operand has 114 states, 113 states have (on average 1.5398230088495575) internal successors, (174), 113 states have internal predecessors, (174), 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 03:58:23,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 03:58:23,526 INFO L93 Difference]: Finished difference Result 114 states and 164 transitions. [2021-08-31 03:58:23,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 03:58:23,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 164 transitions. [2021-08-31 03:58:23,532 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-08-31 03:58:23,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 107 states and 156 transitions. [2021-08-31 03:58:23,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 107 [2021-08-31 03:58:23,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 107 [2021-08-31 03:58:23,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 156 transitions. [2021-08-31 03:58:23,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 03:58:23,536 INFO L681 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2021-08-31 03:58:23,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 156 transitions. [2021-08-31 03:58:23,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-08-31 03:58:23,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 107 states have (on average 1.4579439252336448) internal successors, (156), 106 states have internal predecessors, (156), 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 03:58:23,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2021-08-31 03:58:23,560 INFO L704 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2021-08-31 03:58:23,560 INFO L587 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2021-08-31 03:58:23,560 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 03:58:23,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 156 transitions. [2021-08-31 03:58:23,570 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-08-31 03:58:23,570 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:58:23,570 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:58:23,571 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 03:58:23,571 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:58:23,571 INFO L791 eck$LassoCheckResult]: Stem: 339#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);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(21);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(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #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(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 286#L-1 havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 287#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 308#L75 main_#t~ret67 := valid_product_#res;main_~tmp~7 := main_#t~ret67;havoc main_#t~ret67; 244#L804 assume 0 != main_~tmp~7; 245#L781 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 313#L928-1 [2021-08-31 03:58:23,572 INFO L793 eck$LassoCheckResult]: Loop: 313#L928-1 assume !false; 334#L96 assume test_~splverifierCounter~0 < 4; 317#L97 test_~tmp~0 := test_#t~nondet8;havoc test_#t~nondet8; 259#L105 assume !(0 != test_~tmp~0); 261#L105-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 302#L115 assume !(0 != test_~tmp___0~0); 303#L115-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 307#L125 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 267#L133-2 assume !(0 != ~pumpRunning~0); 239#L168 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 240#L226 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret12, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 250#L200-1 assume !(0 == ~pumpRunning~0); 237#L175 havoc __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_#t~ret80, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 238#L862-1 __utac_acc__Specification3_spec__1_#t~ret78 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 341#L922 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 313#L928-1 [2021-08-31 03:58:23,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:58:23,573 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-31 03:58:23,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:58:23,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308322607] [2021-08-31 03:58:23,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:58:23,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:58:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:58:23,628 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:58:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:58:23,685 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:58:23,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:58:23,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1086510035, now seen corresponding path program 1 times [2021-08-31 03:58:23,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:58:23,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302314046] [2021-08-31 03:58:23,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:58:23,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:58:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:58:23,701 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 03:58:23,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 03:58:23,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302314046] [2021-08-31 03:58:23,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302314046] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 03:58:23,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 03:58:23,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 03:58:23,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250111939] [2021-08-31 03:58:23,706 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 03:58:23,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 03:58:23,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 03:58:23,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 03:58:23,707 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. cyclomatic complexity: 51 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 03:58:24,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 03:58:24,005 INFO L93 Difference]: Finished difference Result 154 states and 213 transitions. [2021-08-31 03:58:24,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 03:58:24,005 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 213 transitions. [2021-08-31 03:58:24,012 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2021-08-31 03:58:24,013 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 154 states and 213 transitions. [2021-08-31 03:58:24,014 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 154 [2021-08-31 03:58:24,015 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 154 [2021-08-31 03:58:24,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 213 transitions. [2021-08-31 03:58:24,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 03:58:24,016 INFO L681 BuchiCegarLoop]: Abstraction has 154 states and 213 transitions. [2021-08-31 03:58:24,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states and 213 transitions. [2021-08-31 03:58:24,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-08-31 03:58:24,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 154 states have (on average 1.3831168831168832) internal successors, (213), 153 states have internal predecessors, (213), 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 03:58:24,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 213 transitions. [2021-08-31 03:58:24,031 INFO L704 BuchiCegarLoop]: Abstraction has 154 states and 213 transitions. [2021-08-31 03:58:24,031 INFO L587 BuchiCegarLoop]: Abstraction has 154 states and 213 transitions. [2021-08-31 03:58:24,031 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 03:58:24,031 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 154 states and 213 transitions. [2021-08-31 03:58:24,032 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2021-08-31 03:58:24,032 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:58:24,032 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:58:24,034 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 03:58:24,034 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 03:58:24,034 INFO L791 eck$LassoCheckResult]: Stem: 610#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);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(21);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(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #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(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 550#L-1 havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 551#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 574#L75 main_#t~ret67 := valid_product_#res;main_~tmp~7 := main_#t~ret67;havoc main_#t~ret67; 510#L804 assume 0 != main_~tmp~7; 511#L781 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 580#L928-1 [2021-08-31 03:58:24,034 INFO L793 eck$LassoCheckResult]: Loop: 580#L928-1 assume !false; 605#L96 assume test_~splverifierCounter~0 < 4; 585#L97 test_~tmp~0 := test_#t~nondet8;havoc test_#t~nondet8; 524#L105 assume !(0 != test_~tmp~0); 526#L105-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 568#L115 assume !(0 != test_~tmp___0~0); 569#L115-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 573#L125 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 532#L133-2 assume !(0 != ~pumpRunning~0); 506#L168 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 507#L226 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret12, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 516#L200-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret31, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 520#L902-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 521#L907-1 isHighWaterLevel_#t~ret31 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret31;havoc isHighWaterLevel_#t~ret31; 606#L328-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 608#L328-5 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 545#L334-1 processEnvironment__wrappee__highWaterSensor_#t~ret12 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret12;havoc processEnvironment__wrappee__highWaterSensor_#t~ret12; 546#L204-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 504#L175 havoc __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_#t~ret80, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 505#L862-1 __utac_acc__Specification3_spec__1_#t~ret78 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 613#L922 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 580#L928-1 [2021-08-31 03:58:24,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:58:24,035 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-08-31 03:58:24,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:58:24,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475325650] [2021-08-31 03:58:24,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:58:24,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:58:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:58:24,068 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:58:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:58:24,102 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:58:24,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:58:24,102 INFO L82 PathProgramCache]: Analyzing trace with hash -849194663, now seen corresponding path program 1 times [2021-08-31 03:58:24,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:58:24,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017459888] [2021-08-31 03:58:24,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:58:24,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:58:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:58:24,108 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:58:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:58:24,113 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:58:24,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:58:24,114 INFO L82 PathProgramCache]: Analyzing trace with hash -393123469, now seen corresponding path program 1 times [2021-08-31 03:58:24,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:58:24,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279347461] [2021-08-31 03:58:24,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:58:24,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:58:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:58:24,171 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 03:58:24,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 03:58:24,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279347461] [2021-08-31 03:58:24,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279347461] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 03:58:24,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 03:58:24,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 03:58:24,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612849629] [2021-08-31 03:58:24,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 03:58:24,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-31 03:58:24,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-31 03:58:24,412 INFO L87 Difference]: Start difference. First operand 154 states and 213 transitions. cyclomatic complexity: 61 Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 03:58:25,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 03:58:25,142 INFO L93 Difference]: Finished difference Result 513 states and 712 transitions. [2021-08-31 03:58:25,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-31 03:58:25,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 513 states and 712 transitions. [2021-08-31 03:58:25,145 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 372 [2021-08-31 03:58:25,147 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 513 states to 513 states and 712 transitions. [2021-08-31 03:58:25,147 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 513 [2021-08-31 03:58:25,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 513 [2021-08-31 03:58:25,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 513 states and 712 transitions. [2021-08-31 03:58:25,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 03:58:25,150 INFO L681 BuchiCegarLoop]: Abstraction has 513 states and 712 transitions. [2021-08-31 03:58:25,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states and 712 transitions. [2021-08-31 03:58:25,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 302. [2021-08-31 03:58:25,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 302 states have (on average 1.3642384105960266) internal successors, (412), 301 states have internal predecessors, (412), 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 03:58:25,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 412 transitions. [2021-08-31 03:58:25,159 INFO L704 BuchiCegarLoop]: Abstraction has 302 states and 412 transitions. [2021-08-31 03:58:25,159 INFO L587 BuchiCegarLoop]: Abstraction has 302 states and 412 transitions. [2021-08-31 03:58:25,159 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-31 03:58:25,159 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 302 states and 412 transitions. [2021-08-31 03:58:25,160 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 212 [2021-08-31 03:58:25,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:58:25,160 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:58:25,161 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 03:58:25,161 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:58:25,161 INFO L791 eck$LassoCheckResult]: Stem: 1308#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);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(21);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(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #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(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1237#L-1 havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 1238#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1262#L75 main_#t~ret67 := valid_product_#res;main_~tmp~7 := main_#t~ret67;havoc main_#t~ret67; 1197#L804 assume 0 != main_~tmp~7; 1198#L781 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1268#L928-1 [2021-08-31 03:58:25,161 INFO L793 eck$LassoCheckResult]: Loop: 1268#L928-1 assume !false; 1298#L96 assume test_~splverifierCounter~0 < 4; 1302#L97 test_~tmp~0 := test_#t~nondet8;havoc test_#t~nondet8; 1210#L105 assume !(0 != test_~tmp~0); 1212#L105-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 1256#L115 assume !(0 != test_~tmp___0~0); 1257#L115-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 1261#L125 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1218#L133-2 assume !(0 != ~pumpRunning~0); 1219#L168 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1201#L226 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret12, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 1202#L200-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret31, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1206#L902-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1207#L907-1 isHighWaterLevel_#t~ret31 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret31;havoc isHighWaterLevel_#t~ret31; 1299#L328-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 1301#L328-5 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1232#L334-1 processEnvironment__wrappee__highWaterSensor_#t~ret12 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret12;havoc processEnvironment__wrappee__highWaterSensor_#t~ret12; 1233#L204-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 1189#L175 havoc __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_#t~ret80, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 1190#L862-1 __utac_acc__Specification3_spec__1_#t~ret78 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 1311#L922 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 1312#L894 __utac_acc__Specification3_spec__1_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret79;havoc __utac_acc__Specification3_spec__1_#t~ret79; 1267#L928 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1268#L928-1 [2021-08-31 03:58:25,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:58:25,162 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2021-08-31 03:58:25,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:58:25,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38490417] [2021-08-31 03:58:25,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:58:25,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:58:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:58:25,188 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:58:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:58:25,222 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:58:25,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:58:25,223 INFO L82 PathProgramCache]: Analyzing trace with hash -32277205, now seen corresponding path program 1 times [2021-08-31 03:58:25,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:58:25,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708863308] [2021-08-31 03:58:25,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:58:25,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:58:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:58:25,227 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:58:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:58:25,237 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:58:25,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:58:25,238 INFO L82 PathProgramCache]: Analyzing trace with hash 165476037, now seen corresponding path program 1 times [2021-08-31 03:58:25,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:58:25,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657589758] [2021-08-31 03:58:25,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:58:25,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:58:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:58:25,258 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:58:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:58:25,296 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:59:01,036 WARN L210 SmtUtils]: Spent 35.55s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-31 03:59:37,202 WARN L210 SmtUtils]: Spent 18.20s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-31 03:59:37,274 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 03:59:37,276 INFO L158 Benchmark]: Toolchain (without parser) took 75405.03ms. Allocated memory was 54.5MB in the beginning and 98.6MB in the end (delta: 44.0MB). Free memory was 32.1MB in the beginning and 55.1MB in the end (delta: -23.1MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2021-08-31 03:59:37,276 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory was 36.2MB in the beginning and 36.1MB in the end (delta: 29.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 03:59:37,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.90ms. Allocated memory is still 54.5MB. Free memory was 31.8MB in the beginning and 30.3MB in the end (delta: 1.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-31 03:59:37,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.87ms. Allocated memory is still 54.5MB. Free memory was 30.3MB in the beginning and 26.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-31 03:59:37,277 INFO L158 Benchmark]: Boogie Preprocessor took 35.53ms. Allocated memory is still 54.5MB. Free memory was 26.8MB in the beginning and 24.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 03:59:37,278 INFO L158 Benchmark]: RCFGBuilder took 493.02ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 24.2MB in the beginning and 33.1MB in the end (delta: -8.9MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2021-08-31 03:59:37,278 INFO L158 Benchmark]: BuchiAutomizer took 74462.34ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 33.1MB in the beginning and 55.1MB in the end (delta: -22.0MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2021-08-31 03:59:37,280 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory was 36.2MB in the beginning and 36.1MB in the end (delta: 29.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.90ms. Allocated memory is still 54.5MB. Free memory was 31.8MB in the beginning and 30.3MB in the end (delta: 1.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.87ms. Allocated memory is still 54.5MB. Free memory was 30.3MB in the beginning and 26.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.53ms. Allocated memory is still 54.5MB. Free memory was 26.8MB in the beginning and 24.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 493.02ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 24.2MB in the beginning and 33.1MB in the end (delta: -8.9MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 74462.34ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 33.1MB in the beginning and 55.1MB in the end (delta: -22.0MB). Peak memory consumption was 47.3MB. 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 302 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 03:59:37,319 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...