./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product46.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_product46.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 ee3873e13261eb6c81628e215e5ca4b9d8112589 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 03:59:20,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 03:59:20,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 03:59:20,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 03:59:20,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 03:59:20,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 03:59:20,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 03:59:20,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 03:59:20,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 03:59:20,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 03:59:20,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 03:59:20,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 03:59:20,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 03:59:20,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 03:59:20,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 03:59:20,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 03:59:20,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 03:59:20,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 03:59:20,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 03:59:20,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 03:59:20,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 03:59:20,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 03:59:20,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 03:59:20,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 03:59:20,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 03:59:20,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 03:59:20,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 03:59:20,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 03:59:20,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 03:59:20,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 03:59:20,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 03:59:20,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 03:59:20,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 03:59:20,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 03:59:20,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 03:59:20,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 03:59:20,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 03:59:20,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 03:59:20,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 03:59:20,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 03:59:20,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 03:59:20,370 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 03:59:20,386 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 03:59:20,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 03:59:20,387 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 03:59:20,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 03:59:20,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 03:59:20,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 03:59:20,388 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 03:59:20,388 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 03:59:20,388 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 03:59:20,388 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 03:59:20,388 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 03:59:20,388 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 03:59:20,388 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 03:59:20,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 03:59:20,389 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 03:59:20,389 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 03:59:20,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 03:59:20,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 03:59:20,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 03:59:20,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 03:59:20,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 03:59:20,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 03:59:20,389 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 03:59:20,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 03:59:20,390 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 03:59:20,390 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 03:59:20,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 03:59:20,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 03:59:20,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 03:59:20,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 03:59:20,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 03:59:20,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 03:59:20,391 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 03:59:20,391 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee3873e13261eb6c81628e215e5ca4b9d8112589 [2021-08-31 03:59:20,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 03:59:20,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 03:59:20,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 03:59:20,649 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 03:59:20,650 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 03:59:20,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c [2021-08-31 03:59:20,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30f5f5018/24ef22ad1ad24122a33767de27fd8612/FLAGd02772667 [2021-08-31 03:59:21,080 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 03:59:21,080 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c [2021-08-31 03:59:21,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30f5f5018/24ef22ad1ad24122a33767de27fd8612/FLAGd02772667 [2021-08-31 03:59:21,106 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30f5f5018/24ef22ad1ad24122a33767de27fd8612 [2021-08-31 03:59:21,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 03:59:21,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 03:59:21,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 03:59:21,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 03:59:21,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 03:59:21,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:59:21" (1/1) ... [2021-08-31 03:59:21,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55249229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:59:21, skipping insertion in model container [2021-08-31 03:59:21,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:59:21" (1/1) ... [2021-08-31 03:59:21,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 03:59:21,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 03:59:21,379 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_product46.cil.c[18107,18120] [2021-08-31 03:59:21,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 03:59:21,389 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 03:59:21,440 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_product46.cil.c[18107,18120] [2021-08-31 03:59:21,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 03:59:21,458 INFO L208 MainTranslator]: Completed translation [2021-08-31 03:59:21,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:59:21 WrapperNode [2021-08-31 03:59:21,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 03:59:21,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 03:59:21,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 03:59:21,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 03:59:21,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:59:21" (1/1) ... [2021-08-31 03:59:21,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:59:21" (1/1) ... [2021-08-31 03:59:21,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 03:59:21,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 03:59:21,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 03:59:21,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 03:59:21,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:59:21" (1/1) ... [2021-08-31 03:59:21,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:59:21" (1/1) ... [2021-08-31 03:59:21,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:59:21" (1/1) ... [2021-08-31 03:59:21,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:59:21" (1/1) ... [2021-08-31 03:59:21,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:59:21" (1/1) ... [2021-08-31 03:59:21,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:59:21" (1/1) ... [2021-08-31 03:59:21,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:59:21" (1/1) ... [2021-08-31 03:59:21,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 03:59:21,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 03:59:21,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 03:59:21,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 03:59:21,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:59:21" (1/1) ... [2021-08-31 03:59:21,557 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:59:21,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:59:21,589 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 03:59:21,593 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 03:59:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 03:59:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-31 03:59:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 03:59:21,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 03:59:22,066 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 03:59:22,066 INFO L299 CfgBuilder]: Removed 200 assume(true) statements. [2021-08-31 03:59:22,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:59:22 BoogieIcfgContainer [2021-08-31 03:59:22,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 03:59:22,070 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 03:59:22,070 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 03:59:22,072 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 03:59:22,073 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 03:59:22,074 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 03:59:21" (1/3) ... [2021-08-31 03:59:22,074 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59c96d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 03:59:22, skipping insertion in model container [2021-08-31 03:59:22,074 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 03:59:22,074 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:59:21" (2/3) ... [2021-08-31 03:59:22,075 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59c96d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 03:59:22, skipping insertion in model container [2021-08-31 03:59:22,075 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 03:59:22,075 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:59:22" (3/3) ... [2021-08-31 03:59:22,076 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product46.cil.c [2021-08-31 03:59:22,107 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 03:59:22,107 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 03:59:22,107 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 03:59:22,107 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 03:59:22,108 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 03:59:22,108 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 03:59:22,108 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 03:59:22,108 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 03:59:22,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 132 states, 131 states have (on average 1.5114503816793894) internal successors, (198), 131 states have internal predecessors, (198), 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 03:59:22,148 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2021-08-31 03:59:22,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:59:22,149 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:59:22,154 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 03:59:22,154 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:59:22,154 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 03:59:22,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 132 states, 131 states have (on average 1.5114503816793894) internal successors, (198), 131 states have internal predecessors, (198), 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 03:59:22,169 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2021-08-31 03:59:22,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:59:22,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:59:22,170 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 03:59:22,170 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:59:22,178 INFO L791 eck$LassoCheckResult]: Stem: 122#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 48#L-1true havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 23#L105true 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; 115#L113true main_#t~ret46 := valid_product_#res;main_~tmp~4 := main_#t~ret46;havoc main_#t~ret46; 123#L571true assume 0 != main_~tmp~4; 40#L547true havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 114#L61-1true [2021-08-31 03:59:22,179 INFO L793 eck$LassoCheckResult]: Loop: 114#L61-1true assume !false; 50#L899true assume test_~splverifierCounter~0 < 4; 98#L900true test_~tmp~9 := test_#t~nondet78;havoc test_#t~nondet78; 86#L908true assume !(0 != test_~tmp~9); 41#L908-1true test_~tmp___0~2 := test_#t~nondet79;havoc test_#t~nondet79; 15#L918true assume !(0 != test_~tmp___0~2); 39#L918-1true test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 79#L928true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 60#L936-2true assume !(0 != ~pumpRunning~0); 42#L692true assume !(0 != ~systemActive~0); 51#L699true havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 130#L631-3true __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 73#L55true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 114#L61-1true [2021-08-31 03:59:22,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:59:22,184 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-31 03:59:22,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:59:22,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777325254] [2021-08-31 03:59:22,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:59:22,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:59:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:59:22,323 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:59:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:59:22,423 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:59:22,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:59:22,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1678359114, now seen corresponding path program 1 times [2021-08-31 03:59:22,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:59:22,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897689811] [2021-08-31 03:59:22,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:59:22,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:59:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:59:22,471 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 03:59:22,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 03:59:22,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897689811] [2021-08-31 03:59:22,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897689811] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 03:59:22,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 03:59:22,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 03:59:22,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022566711] [2021-08-31 03:59:22,475 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 03:59:22,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 03:59:22,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 03:59:22,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 03:59:22,493 INFO L87 Difference]: Start difference. First operand has 132 states, 131 states have (on average 1.5114503816793894) internal successors, (198), 131 states have internal predecessors, (198), 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 03:59:22,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 03:59:22,736 INFO L93 Difference]: Finished difference Result 132 states and 188 transitions. [2021-08-31 03:59:22,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 03:59:22,743 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 188 transitions. [2021-08-31 03:59:22,747 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2021-08-31 03:59:22,751 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 125 states and 180 transitions. [2021-08-31 03:59:22,752 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2021-08-31 03:59:22,754 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2021-08-31 03:59:22,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 180 transitions. [2021-08-31 03:59:22,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 03:59:22,755 INFO L681 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2021-08-31 03:59:22,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 180 transitions. [2021-08-31 03:59:22,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-08-31 03:59:22,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.44) internal successors, (180), 124 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 03:59:22,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 180 transitions. [2021-08-31 03:59:22,788 INFO L704 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2021-08-31 03:59:22,788 INFO L587 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2021-08-31 03:59:22,789 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 03:59:22,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 180 transitions. [2021-08-31 03:59:22,789 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2021-08-31 03:59:22,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:59:22,790 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:59:22,791 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 03:59:22,791 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:59:22,791 INFO L791 eck$LassoCheckResult]: Stem: 396#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 347#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 309#L105 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; 310#L113 main_#t~ret46 := valid_product_#res;main_~tmp~4 := main_#t~ret46;havoc main_#t~ret46; 393#L571 assume 0 != main_~tmp~4; 336#L547 havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 337#L61-1 [2021-08-31 03:59:22,792 INFO L793 eck$LassoCheckResult]: Loop: 337#L61-1 assume !false; 350#L899 assume test_~splverifierCounter~0 < 4; 351#L900 test_~tmp~9 := test_#t~nondet78;havoc test_#t~nondet78; 378#L908 assume !(0 != test_~tmp~9); 302#L908-1 test_~tmp___0~2 := test_#t~nondet79;havoc test_#t~nondet79; 295#L918 assume !(0 != test_~tmp___0~2); 296#L918-1 test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 335#L928 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 343#L936-2 assume !(0 != ~pumpRunning~0); 338#L692 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 339#L750 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 369#L724-1 assume !(0 == ~pumpRunning~0); 277#L699 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 353#L631-3 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 370#L55 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 337#L61-1 [2021-08-31 03:59:22,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:59:22,793 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-31 03:59:22,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:59:22,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623958543] [2021-08-31 03:59:22,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:59:22,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:59:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:59:22,838 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:59:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:59:22,891 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:59:22,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:59:22,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1075674056, now seen corresponding path program 1 times [2021-08-31 03:59:22,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:59:22,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099514573] [2021-08-31 03:59:22,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:59:22,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:59:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:59:22,906 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 03:59:22,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 03:59:22,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099514573] [2021-08-31 03:59:22,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099514573] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 03:59:22,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 03:59:22,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 03:59:22,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978335833] [2021-08-31 03:59:22,911 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 03:59:22,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 03:59:22,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 03:59:22,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 03:59:22,913 INFO L87 Difference]: Start difference. First operand 125 states and 180 transitions. cyclomatic complexity: 57 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 03:59:23,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 03:59:23,193 INFO L93 Difference]: Finished difference Result 172 states and 237 transitions. [2021-08-31 03:59:23,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 03:59:23,194 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 172 states and 237 transitions. [2021-08-31 03:59:23,195 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2021-08-31 03:59:23,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 172 states to 172 states and 237 transitions. [2021-08-31 03:59:23,196 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 172 [2021-08-31 03:59:23,197 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 172 [2021-08-31 03:59:23,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 172 states and 237 transitions. [2021-08-31 03:59:23,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 03:59:23,198 INFO L681 BuchiCegarLoop]: Abstraction has 172 states and 237 transitions. [2021-08-31 03:59:23,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states and 237 transitions. [2021-08-31 03:59:23,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2021-08-31 03:59:23,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 172 states have (on average 1.377906976744186) internal successors, (237), 171 states have internal predecessors, (237), 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 03:59:23,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 237 transitions. [2021-08-31 03:59:23,203 INFO L704 BuchiCegarLoop]: Abstraction has 172 states and 237 transitions. [2021-08-31 03:59:23,203 INFO L587 BuchiCegarLoop]: Abstraction has 172 states and 237 transitions. [2021-08-31 03:59:23,203 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 03:59:23,203 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 172 states and 237 transitions. [2021-08-31 03:59:23,204 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2021-08-31 03:59:23,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:59:23,204 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:59:23,204 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 03:59:23,204 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 03:59:23,205 INFO L791 eck$LassoCheckResult]: Stem: 705#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 653#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 614#L105 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; 615#L113 main_#t~ret46 := valid_product_#res;main_~tmp~4 := main_#t~ret46;havoc main_#t~ret46; 701#L571 assume 0 != main_~tmp~4; 642#L547 havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 643#L61-1 [2021-08-31 03:59:23,205 INFO L793 eck$LassoCheckResult]: Loop: 643#L61-1 assume !false; 657#L899 assume test_~splverifierCounter~0 < 4; 658#L900 test_~tmp~9 := test_#t~nondet78;havoc test_#t~nondet78; 683#L908 assume !(0 != test_~tmp~9); 607#L908-1 test_~tmp___0~2 := test_#t~nondet79;havoc test_#t~nondet79; 599#L918 assume !(0 != test_~tmp___0~2); 600#L918-1 test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 641#L928 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 649#L936-2 assume !(0 != ~pumpRunning~0); 644#L692 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 645#L750 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 674#L724-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret77, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 650#L671-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 576#L676-1 isHighWaterLevel_#t~ret77 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret77;havoc isHighWaterLevel_#t~ret77; 577#L869-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 654#L869-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 655#L875-1 processEnvironment__wrappee__methaneQuery_#t~ret57 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret57;havoc processEnvironment__wrappee__methaneQuery_#t~ret57; 672#L728-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 583#L699 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 660#L631-3 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 675#L55 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 643#L61-1 [2021-08-31 03:59:23,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:59:23,205 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-08-31 03:59:23,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:59:23,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710079340] [2021-08-31 03:59:23,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:59:23,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:59:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:59:23,230 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:59:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:59:23,278 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:59:23,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:59:23,280 INFO L82 PathProgramCache]: Analyzing trace with hash -515194556, now seen corresponding path program 1 times [2021-08-31 03:59:23,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:59:23,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372592826] [2021-08-31 03:59:23,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:59:23,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:59:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:59:23,286 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:59:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:59:23,301 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:59:23,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:59:23,305 INFO L82 PathProgramCache]: Analyzing trace with hash -59123362, now seen corresponding path program 1 times [2021-08-31 03:59:23,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:59:23,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325664025] [2021-08-31 03:59:23,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:59:23,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:59:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:59:23,347 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 03:59:23,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 03:59:23,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325664025] [2021-08-31 03:59:23,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325664025] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 03:59:23,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 03:59:23,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 03:59:23,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349727642] [2021-08-31 03:59:23,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 03:59:23,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-31 03:59:23,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-31 03:59:23,517 INFO L87 Difference]: Start difference. First operand 172 states and 237 transitions. cyclomatic complexity: 67 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 03:59:24,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 03:59:24,235 INFO L93 Difference]: Finished difference Result 574 states and 794 transitions. [2021-08-31 03:59:24,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-31 03:59:24,236 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 574 states and 794 transitions. [2021-08-31 03:59:24,239 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 411 [2021-08-31 03:59:24,241 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 574 states to 574 states and 794 transitions. [2021-08-31 03:59:24,241 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 574 [2021-08-31 03:59:24,242 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 574 [2021-08-31 03:59:24,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 574 states and 794 transitions. [2021-08-31 03:59:24,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 03:59:24,243 INFO L681 BuchiCegarLoop]: Abstraction has 574 states and 794 transitions. [2021-08-31 03:59:24,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states and 794 transitions. [2021-08-31 03:59:24,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 338. [2021-08-31 03:59:24,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 338 states have (on average 1.3609467455621302) internal successors, (460), 337 states have internal predecessors, (460), 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 03:59:24,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 460 transitions. [2021-08-31 03:59:24,252 INFO L704 BuchiCegarLoop]: Abstraction has 338 states and 460 transitions. [2021-08-31 03:59:24,252 INFO L587 BuchiCegarLoop]: Abstraction has 338 states and 460 transitions. [2021-08-31 03:59:24,252 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-31 03:59:24,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 338 states and 460 transitions. [2021-08-31 03:59:24,253 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 236 [2021-08-31 03:59:24,254 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:59:24,254 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:59:24,254 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 03:59:24,254 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 03:59:24,254 INFO L791 eck$LassoCheckResult]: Stem: 1486#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1420#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 1378#L105 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; 1379#L113 main_#t~ret46 := valid_product_#res;main_~tmp~4 := main_#t~ret46;havoc main_#t~ret46; 1481#L571 assume 0 != main_~tmp~4; 1409#L547 havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1410#L61-1 [2021-08-31 03:59:24,255 INFO L793 eck$LassoCheckResult]: Loop: 1410#L61-1 assume !false; 1426#L899 assume test_~splverifierCounter~0 < 4; 1427#L900 test_~tmp~9 := test_#t~nondet78;havoc test_#t~nondet78; 1459#L908 assume !(0 != test_~tmp~9); 1371#L908-1 test_~tmp___0~2 := test_#t~nondet79;havoc test_#t~nondet79; 1363#L918 assume !(0 != test_~tmp___0~2); 1364#L918-1 test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 1408#L928 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1416#L936-2 assume !(0 != ~pumpRunning~0); 1411#L692 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1412#L750 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 1567#L724-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret77, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1605#L671-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1604#L676-1 isHighWaterLevel_#t~ret77 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret77;havoc isHighWaterLevel_#t~ret77; 1603#L869-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1421#L869-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 1422#L875-1 processEnvironment__wrappee__methaneQuery_#t~ret57 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret57;havoc processEnvironment__wrappee__methaneQuery_#t~ret57; 1552#L728-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 1423#L699 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1424#L631-3 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 1449#L55 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 1368#L663 __utac_acc__Specification3_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret8;havoc __utac_acc__Specification3_spec__1_#t~ret8; 1369#L61 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 1410#L61-1 [2021-08-31 03:59:24,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:59:24,255 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2021-08-31 03:59:24,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:59:24,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529817306] [2021-08-31 03:59:24,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:59:24,256 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:59:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:59:24,280 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:59:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:59:24,315 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:59:24,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:59:24,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1180720874, now seen corresponding path program 1 times [2021-08-31 03:59:24,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:59:24,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58248940] [2021-08-31 03:59:24,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:59:24,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:59:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:59:24,325 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:59:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:59:24,333 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:59:24,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:59:24,334 INFO L82 PathProgramCache]: Analyzing trace with hash -982967632, now seen corresponding path program 1 times [2021-08-31 03:59:24,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:59:24,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468550170] [2021-08-31 03:59:24,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:59:24,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:59:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:59:24,354 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:59:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:59:24,388 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:00:05,139 WARN L210 SmtUtils]: Spent 40.56s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-31 04:00:49,815 WARN L210 SmtUtils]: Spent 21.38s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-31 04:00:49,907 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) at de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData.toString(StatisticsData.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerTimingBenchmark.toString(BuchiAutomizerTimingBenchmark.java:44) at de.uni_freiburg.informatik.ultimate.core.lib.results.StatisticsResult.getLongDescription(StatisticsResult.java:58) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.reportResult(BuchiAutomizerObserver.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-31 04:00:49,909 INFO L158 Benchmark]: Toolchain (without parser) took 88800.38ms. Allocated memory was 60.8MB in the beginning and 130.0MB in the end (delta: 69.2MB). Free memory was 43.1MB in the beginning and 38.4MB in the end (delta: 4.7MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. [2021-08-31 04:00:49,909 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 44.0MB. Free memory was 26.6MB in the beginning and 26.6MB in the end (delta: 36.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 04:00:49,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.32ms. Allocated memory is still 60.8MB. Free memory was 43.0MB in the beginning and 36.4MB in the end (delta: 6.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-31 04:00:49,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.86ms. Allocated memory is still 60.8MB. Free memory was 36.2MB in the beginning and 32.4MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-31 04:00:49,910 INFO L158 Benchmark]: Boogie Preprocessor took 47.64ms. Allocated memory is still 60.8MB. Free memory was 32.4MB in the beginning and 29.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 04:00:49,911 INFO L158 Benchmark]: RCFGBuilder took 519.80ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 29.5MB in the beginning and 58.8MB in the end (delta: -29.2MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2021-08-31 04:00:49,911 INFO L158 Benchmark]: BuchiAutomizer took 87838.99ms. Allocated memory was 81.8MB in the beginning and 130.0MB in the end (delta: 48.2MB). Free memory was 58.8MB in the beginning and 38.4MB in the end (delta: 20.4MB). Peak memory consumption was 73.0MB. Max. memory is 16.1GB. [2021-08-31 04:00:49,913 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 44.0MB. Free memory was 26.6MB in the beginning and 26.6MB in the end (delta: 36.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.32ms. Allocated memory is still 60.8MB. Free memory was 43.0MB in the beginning and 36.4MB in the end (delta: 6.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.86ms. Allocated memory is still 60.8MB. Free memory was 36.2MB in the beginning and 32.4MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.64ms. Allocated memory is still 60.8MB. Free memory was 32.4MB in the beginning and 29.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 519.80ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 29.5MB in the beginning and 58.8MB in the end (delta: -29.2MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 87838.99ms. Allocated memory was 81.8MB in the beginning and 130.0MB in the end (delta: 48.2MB). Free memory was 58.8MB in the beginning and 38.4MB in the end (delta: 20.4MB). Peak memory consumption was 73.0MB. 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 338 locations. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6): de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-31 04:00:49,956 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...