./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d1698ae6-548c-46cc-a5da-be4d42608b52/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d1698ae6-548c-46cc-a5da-be4d42608b52/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d1698ae6-548c-46cc-a5da-be4d42608b52/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d1698ae6-548c-46cc-a5da-be4d42608b52/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d1698ae6-548c-46cc-a5da-be4d42608b52/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d1698ae6-548c-46cc-a5da-be4d42608b52/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d3ca886cbb93ac9ab3a93e98b7567227967813c9 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:46:30,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:46:30,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:46:30,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:46:30,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:46:30,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:46:30,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:46:30,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:46:30,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:46:30,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:46:30,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:46:30,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:46:30,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:46:30,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:46:30,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:46:30,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:46:30,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:46:30,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:46:30,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:46:30,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:46:30,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:46:30,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:46:30,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:46:30,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:46:30,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:46:30,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:46:30,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:46:30,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:46:30,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:46:30,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:46:30,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:46:30,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:46:30,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:46:30,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:46:30,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:46:30,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:46:30,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:46:30,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:46:30,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:46:30,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:46:30,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:46:30,473 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d1698ae6-548c-46cc-a5da-be4d42608b52/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:46:30,524 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:46:30,525 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:46:30,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:46:30,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:46:30,528 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:46:30,528 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:46:30,528 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:46:30,528 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:46:30,529 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:46:30,529 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:46:30,530 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:46:30,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:46:30,531 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:46:30,531 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:46:30,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:46:30,531 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:46:30,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:46:30,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:46:30,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:46:30,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:46:30,533 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:46:30,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:46:30,533 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:46:30,534 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:46:30,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:46:30,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:46:30,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:46:30,535 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:46:30,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:46:30,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:46:30,536 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:46:30,536 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:46:30,537 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:46:30,538 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:/tmp/vcloud-vcloud-master/worker/run_dir_d1698ae6-548c-46cc-a5da-be4d42608b52/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d1698ae6-548c-46cc-a5da-be4d42608b52/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3ca886cbb93ac9ab3a93e98b7567227967813c9 [2020-11-29 19:46:30,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:46:30,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:46:30,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:46:30,932 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:46:30,933 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:46:30,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d1698ae6-548c-46cc-a5da-be4d42608b52/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c [2020-11-29 19:46:31,024 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d1698ae6-548c-46cc-a5da-be4d42608b52/bin/uautomizer/data/6df24632f/d41143f666a14199b6f3f1571d85640f/FLAG0ff902e96 [2020-11-29 19:46:31,760 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:46:31,760 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d1698ae6-548c-46cc-a5da-be4d42608b52/sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c [2020-11-29 19:46:31,775 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d1698ae6-548c-46cc-a5da-be4d42608b52/bin/uautomizer/data/6df24632f/d41143f666a14199b6f3f1571d85640f/FLAG0ff902e96 [2020-11-29 19:46:32,030 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d1698ae6-548c-46cc-a5da-be4d42608b52/bin/uautomizer/data/6df24632f/d41143f666a14199b6f3f1571d85640f [2020-11-29 19:46:32,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:46:32,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:46:32,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:46:32,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:46:32,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:46:32,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:46:32" (1/1) ... [2020-11-29 19:46:32,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16ceecec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:32, skipping insertion in model container [2020-11-29 19:46:32,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:46:32" (1/1) ... [2020-11-29 19:46:32,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:46:32,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:46:32,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:46:32,449 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:46:32,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:46:32,615 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:46:32,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:32 WrapperNode [2020-11-29 19:46:32,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:46:32,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:46:32,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:46:32,618 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:46:32,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:32" (1/1) ... [2020-11-29 19:46:32,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:32" (1/1) ... [2020-11-29 19:46:32,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:46:32,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:46:32,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:46:32,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:46:32,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:32" (1/1) ... [2020-11-29 19:46:32,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:32" (1/1) ... [2020-11-29 19:46:32,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:32" (1/1) ... [2020-11-29 19:46:32,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:32" (1/1) ... [2020-11-29 19:46:32,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:32" (1/1) ... [2020-11-29 19:46:32,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:32" (1/1) ... [2020-11-29 19:46:32,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:32" (1/1) ... [2020-11-29 19:46:32,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:46:32,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:46:32,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:46:32,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:46:32,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1698ae6-548c-46cc-a5da-be4d42608b52/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:46:32,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:46:32,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:46:32,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:46:32,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:46:34,487 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:46:34,487 INFO L298 CfgBuilder]: Removed 206 assume(true) statements. [2020-11-29 19:46:34,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:46:34 BoogieIcfgContainer [2020-11-29 19:46:34,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:46:34,491 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:46:34,491 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:46:34,495 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:46:34,496 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:46:34,496 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:46:32" (1/3) ... [2020-11-29 19:46:34,498 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@231a836f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:46:34, skipping insertion in model container [2020-11-29 19:46:34,498 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:46:34,498 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:32" (2/3) ... [2020-11-29 19:46:34,498 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@231a836f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:46:34, skipping insertion in model container [2020-11-29 19:46:34,499 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:46:34,499 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:46:34" (3/3) ... [2020-11-29 19:46:34,501 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product60.cil.c [2020-11-29 19:46:34,549 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:46:34,549 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:46:34,550 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:46:34,550 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:46:34,550 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:46:34,550 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:46:34,550 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:46:34,550 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:46:34,571 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states. [2020-11-29 19:46:34,605 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 91 [2020-11-29 19:46:34,606 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:46:34,606 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:46:34,616 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:46:34,616 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:46:34,616 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:46:34,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states. [2020-11-29 19:46:34,627 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 91 [2020-11-29 19:46:34,628 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:46:34,628 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:46:34,634 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:46:34,634 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:46:34,641 INFO L794 eck$LassoCheckResult]: Stem: 81#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 12#L-1true havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 14#L288true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 8#L296true main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 5#L252true assume 0 != main_~tmp~0; 79#L223true ~methAndRunningLastTime~0 := 0; 48#L986true havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 28#L997-1true [2020-11-29 19:46:34,641 INFO L796 eck$LassoCheckResult]: Loop: 28#L997-1true assume !false; 66#L314true assume test_~splverifierCounter~0 < 4; 17#L315true test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 19#L323true assume !(0 != test_~tmp~1); 20#L323-1true test_~tmp___0~0 := test_#t~nondet20;havoc test_#t~nondet20; 71#L333true assume !(0 != test_~tmp___0~0); 74#L333-1true test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 6#L343true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 13#L351-1true assume !(0 != ~pumpRunning~0); 52#L749true assume !(0 != ~systemActive~0); 130#L756true havoc __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_#t~ret81, __utac_acc__Specification2_spec__2_~tmp~10, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~10;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 89#L93-2true __utac_acc__Specification2_spec__2_#t~ret80 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~10 := __utac_acc__Specification2_spec__2_#t~ret80;havoc __utac_acc__Specification2_spec__2_#t~ret80; 46#L997true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~10);~methAndRunningLastTime~0 := 0; 28#L997-1true [2020-11-29 19:46:34,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:34,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 19:46:34,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:34,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247923621] [2020-11-29 19:46:34,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:35,004 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:35,161 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:35,234 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:46:35,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:35,240 INFO L82 PathProgramCache]: Analyzing trace with hash 14728150, now seen corresponding path program 1 times [2020-11-29 19:46:35,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:35,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137260101] [2020-11-29 19:46:35,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:46:35,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:46:35,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137260101] [2020-11-29 19:46:35,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:46:35,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:46:35,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131339358] [2020-11-29 19:46:35,342 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:46:35,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:46:35,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:46:35,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:46:35,359 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 3 states. [2020-11-29 19:46:35,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:46:35,478 INFO L93 Difference]: Finished difference Result 269 states and 391 transitions. [2020-11-29 19:46:35,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:46:35,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 269 states and 391 transitions. [2020-11-29 19:46:35,492 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 174 [2020-11-29 19:46:35,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 269 states to 255 states and 376 transitions. [2020-11-29 19:46:35,507 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 255 [2020-11-29 19:46:35,510 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 255 [2020-11-29 19:46:35,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 255 states and 376 transitions. [2020-11-29 19:46:35,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:46:35,517 INFO L691 BuchiCegarLoop]: Abstraction has 255 states and 376 transitions. [2020-11-29 19:46:35,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states and 376 transitions. [2020-11-29 19:46:35,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 253. [2020-11-29 19:46:35,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-11-29 19:46:35,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 373 transitions. [2020-11-29 19:46:35,579 INFO L714 BuchiCegarLoop]: Abstraction has 253 states and 373 transitions. [2020-11-29 19:46:35,579 INFO L594 BuchiCegarLoop]: Abstraction has 253 states and 373 transitions. [2020-11-29 19:46:35,579 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:46:35,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 253 states and 373 transitions. [2020-11-29 19:46:35,585 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 172 [2020-11-29 19:46:35,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:46:35,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:46:35,586 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:46:35,586 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:46:35,587 INFO L794 eck$LassoCheckResult]: Stem: 525#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 435#L-1 havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 436#L288 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 428#L296 main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 421#L252 assume 0 != main_~tmp~0; 422#L223 ~methAndRunningLastTime~0 := 0; 498#L986 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 461#L997-1 [2020-11-29 19:46:35,587 INFO L796 eck$LassoCheckResult]: Loop: 461#L997-1 assume !false; 462#L314 assume test_~splverifierCounter~0 < 4; 442#L315 test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 443#L323 assume !(0 != test_~tmp~1); 447#L323-1 test_~tmp___0~0 := test_#t~nondet20;havoc test_#t~nondet20; 448#L333 assume !(0 != test_~tmp___0~0); 582#L333-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 423#L343 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 425#L351-1 assume !(0 != ~pumpRunning~0); 438#L749 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 503#L807 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret58, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 655#L781-1 assume !(0 == ~pumpRunning~0); 646#L756 havoc __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_#t~ret81, __utac_acc__Specification2_spec__2_~tmp~10, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~10;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 645#L93-2 __utac_acc__Specification2_spec__2_#t~ret80 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~10 := __utac_acc__Specification2_spec__2_#t~ret80;havoc __utac_acc__Specification2_spec__2_#t~ret80; 493#L997 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~10);~methAndRunningLastTime~0 := 0; 461#L997-1 [2020-11-29 19:46:35,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:35,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 19:46:35,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:35,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048107144] [2020-11-29 19:46:35,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:35,652 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:35,715 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:35,737 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:46:35,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:35,738 INFO L82 PathProgramCache]: Analyzing trace with hash -2011842177, now seen corresponding path program 1 times [2020-11-29 19:46:35,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:35,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670438614] [2020-11-29 19:46:35,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:46:35,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:46:35,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670438614] [2020-11-29 19:46:35,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:46:35,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:46:35,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428060322] [2020-11-29 19:46:35,765 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:46:35,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:46:35,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:46:35,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:46:35,767 INFO L87 Difference]: Start difference. First operand 253 states and 373 transitions. cyclomatic complexity: 123 Second operand 3 states. [2020-11-29 19:46:35,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:46:35,978 INFO L93 Difference]: Finished difference Result 342 states and 485 transitions. [2020-11-29 19:46:35,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:46:35,979 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 342 states and 485 transitions. [2020-11-29 19:46:35,990 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2020-11-29 19:46:36,004 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 342 states to 342 states and 485 transitions. [2020-11-29 19:46:36,005 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 342 [2020-11-29 19:46:36,006 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 342 [2020-11-29 19:46:36,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 342 states and 485 transitions. [2020-11-29 19:46:36,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:46:36,010 INFO L691 BuchiCegarLoop]: Abstraction has 342 states and 485 transitions. [2020-11-29 19:46:36,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states and 485 transitions. [2020-11-29 19:46:36,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2020-11-29 19:46:36,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-11-29 19:46:36,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 485 transitions. [2020-11-29 19:46:36,053 INFO L714 BuchiCegarLoop]: Abstraction has 342 states and 485 transitions. [2020-11-29 19:46:36,053 INFO L594 BuchiCegarLoop]: Abstraction has 342 states and 485 transitions. [2020-11-29 19:46:36,053 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:46:36,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 342 states and 485 transitions. [2020-11-29 19:46:36,057 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2020-11-29 19:46:36,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:46:36,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:46:36,058 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:46:36,059 INFO L853 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] [2020-11-29 19:46:36,059 INFO L794 eck$LassoCheckResult]: Stem: 1127#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 1037#L-1 havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 1038#L288 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 1030#L296 main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 1022#L252 assume 0 != main_~tmp~0; 1023#L223 ~methAndRunningLastTime~0 := 0; 1099#L986 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1065#L997-1 [2020-11-29 19:46:36,059 INFO L796 eck$LassoCheckResult]: Loop: 1065#L997-1 assume !false; 1066#L314 assume test_~splverifierCounter~0 < 4; 1044#L315 test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 1045#L323 assume !(0 != test_~tmp~1); 1049#L323-1 test_~tmp___0~0 := test_#t~nondet20;havoc test_#t~nondet20; 1050#L333 assume !(0 != test_~tmp___0~0); 1103#L333-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 1120#L343 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1026#L351-1 assume !(0 != ~pumpRunning~0); 1104#L749 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1087#L807 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret58, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1088#L781-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret78, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1063#L133-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1064#L138-1 isHighWaterLevel_#t~ret78 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret78;havoc isHighWaterLevel_#t~ret78; 1086#L927-3 assume !(0 != isHighWaterLevel_~tmp~8);isHighWaterLevel_~tmp___0~1 := 1; 1157#L927-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1113#L933-1 processEnvironment__wrappee__highWaterSensor_#t~ret58 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret58;havoc processEnvironment__wrappee__highWaterSensor_#t~ret58; 1093#L785-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 1028#L756 havoc __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_#t~ret81, __utac_acc__Specification2_spec__2_~tmp~10, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~10;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1138#L93-2 __utac_acc__Specification2_spec__2_#t~ret80 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~10 := __utac_acc__Specification2_spec__2_#t~ret80;havoc __utac_acc__Specification2_spec__2_#t~ret80; 1095#L997 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~10);~methAndRunningLastTime~0 := 0; 1065#L997-1 [2020-11-29 19:46:36,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:36,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 19:46:36,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:36,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248276452] [2020-11-29 19:46:36,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:36,182 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:36,235 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:36,251 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:46:36,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:36,252 INFO L82 PathProgramCache]: Analyzing trace with hash 235085, now seen corresponding path program 1 times [2020-11-29 19:46:36,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:36,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043821217] [2020-11-29 19:46:36,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:46:36,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:46:36,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043821217] [2020-11-29 19:46:36,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:46:36,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:46:36,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827580342] [2020-11-29 19:46:36,295 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:46:36,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:46:36,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:46:36,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:46:36,297 INFO L87 Difference]: Start difference. First operand 342 states and 485 transitions. cyclomatic complexity: 146 Second operand 4 states. [2020-11-29 19:46:36,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:46:36,437 INFO L93 Difference]: Finished difference Result 665 states and 927 transitions. [2020-11-29 19:46:36,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:46:36,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 665 states and 927 transitions. [2020-11-29 19:46:36,447 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 470 [2020-11-29 19:46:36,456 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 665 states to 665 states and 927 transitions. [2020-11-29 19:46:36,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 665 [2020-11-29 19:46:36,457 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 665 [2020-11-29 19:46:36,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 665 states and 927 transitions. [2020-11-29 19:46:36,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:46:36,462 INFO L691 BuchiCegarLoop]: Abstraction has 665 states and 927 transitions. [2020-11-29 19:46:36,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states and 927 transitions. [2020-11-29 19:46:36,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 366. [2020-11-29 19:46:36,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-11-29 19:46:36,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 509 transitions. [2020-11-29 19:46:36,481 INFO L714 BuchiCegarLoop]: Abstraction has 366 states and 509 transitions. [2020-11-29 19:46:36,481 INFO L594 BuchiCegarLoop]: Abstraction has 366 states and 509 transitions. [2020-11-29 19:46:36,482 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 19:46:36,482 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 366 states and 509 transitions. [2020-11-29 19:46:36,486 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2020-11-29 19:46:36,486 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:46:36,486 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:46:36,490 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:46:36,490 INFO L853 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] [2020-11-29 19:46:36,492 INFO L794 eck$LassoCheckResult]: Stem: 2160#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 2054#L-1 havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 2055#L288 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 2047#L296 main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 2039#L252 assume 0 != main_~tmp~0; 2040#L223 ~methAndRunningLastTime~0 := 0; 2127#L986 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2090#L997-1 [2020-11-29 19:46:36,493 INFO L796 eck$LassoCheckResult]: Loop: 2090#L997-1 assume !false; 2091#L314 assume test_~splverifierCounter~0 < 4; 2142#L315 test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 2066#L323 assume !(0 != test_~tmp~1); 2068#L323-1 test_~tmp___0~0 := test_#t~nondet20;havoc test_#t~nondet20; 2149#L333 assume !(0 != test_~tmp___0~0); 2132#L333-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 2041#L343 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2043#L351-1 assume !(0 != ~pumpRunning~0); 2297#L749 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 2296#L807 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret58, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 2207#L781-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret78, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 2208#L133-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 2292#L138-1 isHighWaterLevel_#t~ret78 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret78;havoc isHighWaterLevel_#t~ret78; 2290#L927-3 assume !(0 != isHighWaterLevel_~tmp~8);isHighWaterLevel_~tmp___0~1 := 1; 2289#L927-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 2288#L933-1 processEnvironment__wrappee__highWaterSensor_#t~ret58 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret58;havoc processEnvironment__wrappee__highWaterSensor_#t~ret58; 2287#L785-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 2045#L756 havoc __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_#t~ret81, __utac_acc__Specification2_spec__2_~tmp~10, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~10;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 2168#L93-2 __utac_acc__Specification2_spec__2_#t~ret80 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~10 := __utac_acc__Specification2_spec__2_#t~ret80;havoc __utac_acc__Specification2_spec__2_#t~ret80; 2169#L997 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~10);~methAndRunningLastTime~0 := 0; 2090#L997-1 [2020-11-29 19:46:36,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:36,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-29 19:46:36,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:36,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891548036] [2020-11-29 19:46:36,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:36,580 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:36,644 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:36,667 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:46:36,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:36,670 INFO L82 PathProgramCache]: Analyzing trace with hash 680293455, now seen corresponding path program 1 times [2020-11-29 19:46:36,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:36,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539769560] [2020-11-29 19:46:36,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:46:36,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:46:36,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539769560] [2020-11-29 19:46:36,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:46:36,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:46:36,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927469835] [2020-11-29 19:46:36,739 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:46:36,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:46:36,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:46:36,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:46:36,740 INFO L87 Difference]: Start difference. First operand 366 states and 509 transitions. cyclomatic complexity: 146 Second operand 5 states. [2020-11-29 19:46:36,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:46:36,944 INFO L93 Difference]: Finished difference Result 1095 states and 1523 transitions. [2020-11-29 19:46:36,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:46:36,944 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1095 states and 1523 transitions. [2020-11-29 19:46:36,956 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 788 [2020-11-29 19:46:36,969 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1095 states to 1095 states and 1523 transitions. [2020-11-29 19:46:36,970 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1095 [2020-11-29 19:46:36,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1095 [2020-11-29 19:46:36,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1095 states and 1523 transitions. [2020-11-29 19:46:36,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:46:36,975 INFO L691 BuchiCegarLoop]: Abstraction has 1095 states and 1523 transitions. [2020-11-29 19:46:36,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states and 1523 transitions. [2020-11-29 19:46:37,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 402. [2020-11-29 19:46:37,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-11-29 19:46:37,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 545 transitions. [2020-11-29 19:46:37,045 INFO L714 BuchiCegarLoop]: Abstraction has 402 states and 545 transitions. [2020-11-29 19:46:37,045 INFO L594 BuchiCegarLoop]: Abstraction has 402 states and 545 transitions. [2020-11-29 19:46:37,045 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 19:46:37,045 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 402 states and 545 transitions. [2020-11-29 19:46:37,049 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 279 [2020-11-29 19:46:37,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:46:37,049 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:46:37,051 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:46:37,052 INFO L853 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] [2020-11-29 19:46:37,055 INFO L794 eck$LassoCheckResult]: Stem: 3636#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 3529#L-1 havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 3530#L288 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 3522#L296 main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 3514#L252 assume 0 != main_~tmp~0; 3515#L223 ~methAndRunningLastTime~0 := 0; 3603#L986 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3564#L997-1 [2020-11-29 19:46:37,056 INFO L796 eck$LassoCheckResult]: Loop: 3564#L997-1 assume !false; 3565#L314 assume test_~splverifierCounter~0 < 4; 3616#L315 test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 3809#L323 assume !(0 != test_~tmp~1); 3543#L323-1 test_~tmp___0~0 := test_#t~nondet20;havoc test_#t~nondet20; 3544#L333 assume !(0 != test_~tmp___0~0); 3607#L333-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 3805#L343 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3518#L351-1 assume !(0 != ~pumpRunning~0); 3531#L749 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 3589#L807 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret58, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 3590#L781-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret78, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 3561#L133-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 3562#L138-1 isHighWaterLevel_#t~ret78 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret78;havoc isHighWaterLevel_#t~ret78; 3678#L927-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 3679#L927-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 3618#L933-1 processEnvironment__wrappee__highWaterSensor_#t~ret58 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret58;havoc processEnvironment__wrappee__highWaterSensor_#t~ret58; 3619#L785-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 3784#L756 havoc __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_#t~ret81, __utac_acc__Specification2_spec__2_~tmp~10, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~10;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 3817#L93-2 __utac_acc__Specification2_spec__2_#t~ret80 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~10 := __utac_acc__Specification2_spec__2_#t~ret80;havoc __utac_acc__Specification2_spec__2_#t~ret80; 3599#L997 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~10);~methAndRunningLastTime~0 := 0; 3564#L997-1 [2020-11-29 19:46:37,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:37,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 5 times [2020-11-29 19:46:37,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:37,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621394770] [2020-11-29 19:46:37,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:37,118 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:37,180 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:37,192 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:46:37,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:37,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1774772277, now seen corresponding path program 1 times [2020-11-29 19:46:37,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:37,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723776063] [2020-11-29 19:46:37,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:37,201 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:37,206 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:37,211 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:46:37,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:37,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1630651, now seen corresponding path program 1 times [2020-11-29 19:46:37,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:37,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962112956] [2020-11-29 19:46:37,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:37,250 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:37,286 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:37,307 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:46:37,452 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-11-29 19:48:10,584 WARN L193 SmtUtils]: Spent 1.55 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 19:49:14,111 WARN L193 SmtUtils]: Spent 1.06 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 19:49:14,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:49:14 BoogieIcfgContainer [2020-11-29 19:49:14,273 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:49:14,274 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:49:14,274 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:49:14,280 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:49:14,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:46:34" (3/4) ... [2020-11-29 19:49:14,284 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:49:14,356 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d1698ae6-548c-46cc-a5da-be4d42608b52/bin/uautomizer/witness.graphml [2020-11-29 19:49:14,369 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:49:14,370 INFO L168 Benchmark]: Toolchain (without parser) took 162331.69 ms. Allocated memory was 111.1 MB in the beginning and 197.1 MB in the end (delta: 86.0 MB). Free memory was 81.9 MB in the beginning and 70.7 MB in the end (delta: 11.2 MB). Peak memory consumption was 97.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:14,372 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 111.1 MB. Free memory is still 68.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:49:14,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 574.00 ms. Allocated memory is still 111.1 MB. Free memory was 81.7 MB in the beginning and 74.8 MB in the end (delta: 6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:14,373 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.34 ms. Allocated memory is still 111.1 MB. Free memory was 74.8 MB in the beginning and 70.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:14,374 INFO L168 Benchmark]: Boogie Preprocessor took 72.46 ms. Allocated memory is still 111.1 MB. Free memory was 70.7 MB in the beginning and 67.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:14,374 INFO L168 Benchmark]: RCFGBuilder took 1706.29 ms. Allocated memory was 111.1 MB in the beginning and 163.6 MB in the end (delta: 52.4 MB). Free memory was 67.9 MB in the beginning and 131.4 MB in the end (delta: -63.5 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:14,375 INFO L168 Benchmark]: BuchiAutomizer took 159782.60 ms. Allocated memory was 163.6 MB in the beginning and 197.1 MB in the end (delta: 33.6 MB). Free memory was 131.4 MB in the beginning and 72.8 MB in the end (delta: 58.6 MB). Peak memory consumption was 122.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:14,375 INFO L168 Benchmark]: Witness Printer took 94.86 ms. Allocated memory is still 197.1 MB. Free memory was 72.8 MB in the beginning and 70.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:14,382 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 111.1 MB. Free memory is still 68.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 574.00 ms. Allocated memory is still 111.1 MB. Free memory was 81.7 MB in the beginning and 74.8 MB in the end (delta: 6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 92.34 ms. Allocated memory is still 111.1 MB. Free memory was 74.8 MB in the beginning and 70.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.46 ms. Allocated memory is still 111.1 MB. Free memory was 70.7 MB in the beginning and 67.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1706.29 ms. Allocated memory was 111.1 MB in the beginning and 163.6 MB in the end (delta: 52.4 MB). Free memory was 67.9 MB in the beginning and 131.4 MB in the end (delta: -63.5 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 159782.60 ms. Allocated memory was 163.6 MB in the beginning and 197.1 MB in the end (delta: 33.6 MB). Free memory was 131.4 MB in the beginning and 72.8 MB in the end (delta: 58.6 MB). Peak memory consumption was 122.0 MB. Max. memory is 16.1 GB. * Witness Printer took 94.86 ms. Allocated memory is still 197.1 MB. Free memory was 72.8 MB in the beginning and 70.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 402 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 159.7s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 158.5s. Construction of modules took 0.4s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 994 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 402 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1003 SDtfs, 1228 SDslu, 1295 SDs, 0 SdLazy, 198 SolverSat, 67 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 313]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=30666} State at position 1 is {NULL=0, NULL=30670, NULL=30686, NULL=0, NULL=0, NULL=30666, NULL=30691, NULL=30679, NULL=0, NULL=0, NULL=0, NULL=30677, methaneLevelCritical=0, NULL=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34decd42=0, NULL=0, cleanupTimeShifts=4, tmp=0, NULL=30683, NULL=30694, NULL=30671, waterLevel=1, NULL=0, NULL=30692, tmp___0=0, \result=1, head=0, pumpRunning=0, tmp=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26b93161=0, \result=1, NULL=0, retValue_acc=0, NULL=0, NULL=30678, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@bf32118=0, methAndRunningLastTime=0, NULL=30676, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6293b96e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57066481=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@707de946=60, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44e20693=0, tmp=0, NULL=30682, retValue_acc=0, tmp=0, retValue_acc=0, NULL=0, NULL=30688, NULL=0, NULL=30672, tmp___0=0, NULL=0, NULL=0, NULL=30675, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@179f5451=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c9f485f=0, NULL=30693, tmp=0, NULL=30684, NULL=0, systemActive=1, NULL=30680, NULL=0, NULL=30674, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=30667, \result=0, NULL=30689, NULL=0, NULL=0, retValue_acc=1, NULL=30685, NULL=30669, tmp___0=0, tmp___2=60, splverifierCounter=0, NULL=0, \result=0, NULL=30668, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fac3b16=0, NULL=30673, NULL=30681, NULL=30687, NULL=30690} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int waterLevel = 1; [L51] int methaneLevelCritical = 0; [L162] int cleanupTimeShifts = 4; [L541] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L741] int pumpRunning = 0; [L742] int systemActive = 1; [L980] int methAndRunningLastTime ; [L243] int retValue_acc ; [L244] int tmp ; [L292] int retValue_acc ; [L295] retValue_acc = 1 [L296] return (retValue_acc); [L250] tmp = valid_product() [L252] COND TRUE \read(tmp) [L985] methAndRunningLastTime = 0 [L304] int splverifierCounter ; [L305] int tmp ; [L306] int tmp___0 ; [L307] int tmp___1 ; [L308] int tmp___2 ; [L311] splverifierCounter = 0 Loop: [L313] COND TRUE 1 [L315] COND TRUE splverifierCounter < 4 [L321] tmp = __VERIFIER_nondet_int() [L323] COND FALSE !(\read(tmp)) [L331] tmp___0 = __VERIFIER_nondet_int() [L333] COND FALSE !(\read(tmp___0)) [L341] tmp___2 = __VERIFIER_nondet_int() [L343] COND TRUE \read(tmp___2) [L975] systemActive = 1 [L749] COND FALSE !(\read(pumpRunning)) [L756] COND TRUE \read(systemActive) [L804] int tmp ; [L807] COND FALSE !(\read(pumpRunning)) [L778] int tmp ; [L781] COND TRUE ! pumpRunning [L919] int retValue_acc ; [L920] int tmp ; [L921] int tmp___0 ; [L130] int retValue_acc ; [L133] COND TRUE waterLevel < 2 [L134] retValue_acc = 1 [L135] return (retValue_acc); [L925] tmp = isHighWaterSensorDry() [L927] COND TRUE \read(tmp) [L928] tmp___0 = 0 [L932] retValue_acc = tmp___0 [L933] return (retValue_acc); [L783] tmp = isHighWaterLevel() [L785] COND FALSE !(\read(tmp)) [L990] int tmp ; [L991] int tmp___0 ; [L89] int retValue_acc ; [L92] retValue_acc = methaneLevelCritical [L93] return (retValue_acc); [L995] tmp = isMethaneLevelCritical() [L997] COND FALSE !(\read(tmp)) [L1013] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...