./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product42.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_629d89a0-42ff-4e27-8a4c-0b82ab276a99/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_629d89a0-42ff-4e27-8a4c-0b82ab276a99/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_629d89a0-42ff-4e27-8a4c-0b82ab276a99/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_629d89a0-42ff-4e27-8a4c-0b82ab276a99/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_629d89a0-42ff-4e27-8a4c-0b82ab276a99/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_629d89a0-42ff-4e27-8a4c-0b82ab276a99/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 cb3c160aa6739f38466ec4be21f196ba4a934feb ............................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:18:55,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:18:55,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:18:55,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:18:55,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:18:55,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:18:55,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:18:55,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:18:55,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:18:55,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:18:55,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:18:55,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:18:55,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:18:55,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:18:55,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:18:55,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:18:55,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:18:55,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:18:55,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:18:55,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:18:55,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:18:55,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:18:55,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:18:55,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:18:55,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:18:55,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:18:55,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:18:55,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:18:55,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:18:55,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:18:55,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:18:55,509 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:18:55,510 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:18:55,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:18:55,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:18:55,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:18:55,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:18:55,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:18:55,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:18:55,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:18:55,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:18:55,519 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_629d89a0-42ff-4e27-8a4c-0b82ab276a99/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 20:18:55,547 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:18:55,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:18:55,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:18:55,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:18:55,549 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:18:55,549 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:18:55,549 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:18:55,550 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:18:55,550 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:18:55,550 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:18:55,550 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:18:55,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:18:55,551 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:18:55,551 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:18:55,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:18:55,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:18:55,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:18:55,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:18:55,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:18:55,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:18:55,552 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:18:55,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:18:55,553 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:18:55,553 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:18:55,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:18:55,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:18:55,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:18:55,554 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:18:55,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:18:55,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:18:55,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:18:55,555 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:18:55,556 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:18:55,556 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_629d89a0-42ff-4e27-8a4c-0b82ab276a99/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_629d89a0-42ff-4e27-8a4c-0b82ab276a99/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb3c160aa6739f38466ec4be21f196ba4a934feb [2020-11-29 20:18:55,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:18:55,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:18:55,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:18:55,935 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:18:55,936 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:18:55,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_629d89a0-42ff-4e27-8a4c-0b82ab276a99/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2020-11-29 20:18:56,015 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_629d89a0-42ff-4e27-8a4c-0b82ab276a99/bin/uautomizer/data/87de19a43/8e626c2c259649f3b278334a9e1dca51/FLAGb126d06fc [2020-11-29 20:18:56,705 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:18:56,706 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_629d89a0-42ff-4e27-8a4c-0b82ab276a99/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2020-11-29 20:18:56,730 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_629d89a0-42ff-4e27-8a4c-0b82ab276a99/bin/uautomizer/data/87de19a43/8e626c2c259649f3b278334a9e1dca51/FLAGb126d06fc [2020-11-29 20:18:56,920 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_629d89a0-42ff-4e27-8a4c-0b82ab276a99/bin/uautomizer/data/87de19a43/8e626c2c259649f3b278334a9e1dca51 [2020-11-29 20:18:56,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:18:56,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:18:56,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:18:56,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:18:56,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:18:56,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:18:56" (1/1) ... [2020-11-29 20:18:56,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63676ec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:18:56, skipping insertion in model container [2020-11-29 20:18:56,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:18:56" (1/1) ... [2020-11-29 20:18:56,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:18:57,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:18:57,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:18:57,378 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:18:57,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:18:57,589 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:18:57,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:18:57 WrapperNode [2020-11-29 20:18:57,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:18:57,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:18:57,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:18:57,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:18:57,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:18:57" (1/1) ... [2020-11-29 20:18:57,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:18:57" (1/1) ... [2020-11-29 20:18:57,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:18:57,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:18:57,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:18:57,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:18:57,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:18:57" (1/1) ... [2020-11-29 20:18:57,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:18:57" (1/1) ... [2020-11-29 20:18:57,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:18:57" (1/1) ... [2020-11-29 20:18:57,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:18:57" (1/1) ... [2020-11-29 20:18:57,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:18:57" (1/1) ... [2020-11-29 20:18:57,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:18:57" (1/1) ... [2020-11-29 20:18:57,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:18:57" (1/1) ... [2020-11-29 20:18:57,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:18:57,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:18:57,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:18:57,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:18:57,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:18:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_629d89a0-42ff-4e27-8a4c-0b82ab276a99/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 20:18:57,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:18:57,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:18:57,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:18:57,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:18:59,094 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:18:59,096 INFO L298 CfgBuilder]: Removed 124 assume(true) statements. [2020-11-29 20:18:59,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:18:59 BoogieIcfgContainer [2020-11-29 20:18:59,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:18:59,103 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:18:59,104 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:18:59,108 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:18:59,109 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:18:59,109 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:18:56" (1/3) ... [2020-11-29 20:18:59,111 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e0047ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:18:59, skipping insertion in model container [2020-11-29 20:18:59,111 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:18:59,111 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:18:57" (2/3) ... [2020-11-29 20:18:59,112 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e0047ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:18:59, skipping insertion in model container [2020-11-29 20:18:59,112 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:18:59,112 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:18:59" (3/3) ... [2020-11-29 20:18:59,115 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2020-11-29 20:18:59,184 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:18:59,184 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:18:59,185 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:18:59,185 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:18:59,185 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:18:59,185 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:18:59,185 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:18:59,186 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:18:59,213 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states. [2020-11-29 20:18:59,243 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2020-11-29 20:18:59,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:18:59,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:18:59,253 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:18:59,254 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:18:59,254 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:18:59,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states. [2020-11-29 20:18:59,262 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2020-11-29 20:18:59,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:18:59,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:18:59,264 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:18:59,264 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:18:59,269 INFO L794 eck$LassoCheckResult]: Stem: 35#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 14#L-1true havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 39#L732true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 44#L740true main_#t~ret69 := valid_product_#res;main_~tmp~8 := main_#t~ret69;havoc main_#t~ret69; 63#L828true assume 0 != main_~tmp~8; 3#L804true ~methAndRunningLastTime~0 := 0; 52#L674true havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 53#L685-1true [2020-11-29 20:18:59,270 INFO L796 eck$LassoCheckResult]: Loop: 53#L685-1true assume !false; 15#L424true assume test_~splverifierCounter~0 < 4; 33#L425true test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 64#L433true assume !(0 != test_~tmp~3); 68#L433-1true test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 41#L443true assume !(0 != test_~tmp___0~0); 43#L443-1true test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 23#L453true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 29#L461-2true assume !(0 != ~pumpRunning~0); 89#L496true assume !(0 != ~systemActive~0); 76#L503true havoc __utac_acc__Specification2_spec__2_#t~ret66, __utac_acc__Specification2_spec__2_#t~ret67, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 80#L895-1true __utac_acc__Specification2_spec__2_#t~ret66 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret66;havoc __utac_acc__Specification2_spec__2_#t~ret66; 50#L685true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 53#L685-1true [2020-11-29 20:18:59,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:18:59,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 20:18:59,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:18:59,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770441262] [2020-11-29 20:18:59,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:18:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:18:59,602 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:18:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:18:59,784 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:18:59,834 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:18:59,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:18:59,836 INFO L82 PathProgramCache]: Analyzing trace with hash 4046093, now seen corresponding path program 1 times [2020-11-29 20:18:59,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:18:59,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453352780] [2020-11-29 20:18:59,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:18:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:18:59,919 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 20:18:59,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453352780] [2020-11-29 20:18:59,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:18:59,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:18:59,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726588204] [2020-11-29 20:18:59,931 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:18:59,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:18:59,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:18:59,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:18:59,956 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 3 states. [2020-11-29 20:19:00,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:19:00,029 INFO L93 Difference]: Finished difference Result 88 states and 123 transitions. [2020-11-29 20:19:00,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:19:00,036 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 123 transitions. [2020-11-29 20:19:00,047 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2020-11-29 20:19:00,063 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 81 states and 115 transitions. [2020-11-29 20:19:00,065 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 81 [2020-11-29 20:19:00,066 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 81 [2020-11-29 20:19:00,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 81 states and 115 transitions. [2020-11-29 20:19:00,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:19:00,068 INFO L691 BuchiCegarLoop]: Abstraction has 81 states and 115 transitions. [2020-11-29 20:19:00,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states and 115 transitions. [2020-11-29 20:19:00,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-11-29 20:19:00,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-11-29 20:19:00,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 115 transitions. [2020-11-29 20:19:00,110 INFO L714 BuchiCegarLoop]: Abstraction has 81 states and 115 transitions. [2020-11-29 20:19:00,110 INFO L594 BuchiCegarLoop]: Abstraction has 81 states and 115 transitions. [2020-11-29 20:19:00,110 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:19:00,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states and 115 transitions. [2020-11-29 20:19:00,115 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2020-11-29 20:19:00,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:19:00,117 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:19:00,118 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:19:00,120 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:19:00,121 INFO L794 eck$LassoCheckResult]: Stem: 233#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 210#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 211#L732 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 238#L740 main_#t~ret69 := valid_product_#res;main_~tmp~8 := main_#t~ret69;havoc main_#t~ret69; 240#L828 assume 0 != main_~tmp~8; 188#L804 ~methAndRunningLastTime~0 := 0; 189#L674 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 246#L685-1 [2020-11-29 20:19:00,121 INFO L796 eck$LassoCheckResult]: Loop: 246#L685-1 assume !false; 212#L424 assume test_~splverifierCounter~0 < 4; 213#L425 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 232#L433 assume !(0 != test_~tmp~3); 215#L433-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 239#L443 assume !(0 != test_~tmp___0~0); 237#L443-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 216#L453 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 218#L461-2 assume !(0 != ~pumpRunning~0); 226#L496 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 259#L528 assume !(0 == ~pumpRunning~0); 254#L503 havoc __utac_acc__Specification2_spec__2_#t~ret66, __utac_acc__Specification2_spec__2_#t~ret67, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 265#L895-1 __utac_acc__Specification2_spec__2_#t~ret66 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret66;havoc __utac_acc__Specification2_spec__2_#t~ret66; 245#L685 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 246#L685-1 [2020-11-29 20:19:00,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:19:00,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 20:19:00,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:19:00,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890733927] [2020-11-29 20:19:00,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:19:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:19:00,242 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:19:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:19:00,343 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:19:00,365 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:19:00,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:19:00,366 INFO L82 PathProgramCache]: Analyzing trace with hash 83659395, now seen corresponding path program 1 times [2020-11-29 20:19:00,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:19:00,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549188480] [2020-11-29 20:19:00,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:19:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:19:00,387 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 20:19:00,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549188480] [2020-11-29 20:19:00,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:19:00,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:19:00,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530175093] [2020-11-29 20:19:00,389 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:19:00,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:19:00,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:19:00,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:19:00,391 INFO L87 Difference]: Start difference. First operand 81 states and 115 transitions. cyclomatic complexity: 36 Second operand 3 states. [2020-11-29 20:19:00,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:19:00,511 INFO L93 Difference]: Finished difference Result 125 states and 172 transitions. [2020-11-29 20:19:00,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:19:00,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 172 transitions. [2020-11-29 20:19:00,516 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 86 [2020-11-29 20:19:00,518 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 125 states and 172 transitions. [2020-11-29 20:19:00,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2020-11-29 20:19:00,519 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2020-11-29 20:19:00,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 172 transitions. [2020-11-29 20:19:00,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:19:00,529 INFO L691 BuchiCegarLoop]: Abstraction has 125 states and 172 transitions. [2020-11-29 20:19:00,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 172 transitions. [2020-11-29 20:19:00,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-29 20:19:00,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-29 20:19:00,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 172 transitions. [2020-11-29 20:19:00,547 INFO L714 BuchiCegarLoop]: Abstraction has 125 states and 172 transitions. [2020-11-29 20:19:00,547 INFO L594 BuchiCegarLoop]: Abstraction has 125 states and 172 transitions. [2020-11-29 20:19:00,547 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 20:19:00,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 172 transitions. [2020-11-29 20:19:00,552 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 86 [2020-11-29 20:19:00,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:19:00,553 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:19:00,555 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:19:00,555 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] [2020-11-29 20:19:00,555 INFO L794 eck$LassoCheckResult]: Stem: 444#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 422#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 423#L732 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 450#L740 main_#t~ret69 := valid_product_#res;main_~tmp~8 := main_#t~ret69;havoc main_#t~ret69; 452#L828 assume 0 != main_~tmp~8; 400#L804 ~methAndRunningLastTime~0 := 0; 401#L674 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 459#L685-1 [2020-11-29 20:19:00,556 INFO L796 eck$LassoCheckResult]: Loop: 459#L685-1 assume !false; 424#L424 assume test_~splverifierCounter~0 < 4; 425#L425 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 441#L433 assume !(0 != test_~tmp~3); 427#L433-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 451#L443 assume !(0 != test_~tmp___0~0); 449#L443-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 428#L453 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 430#L461-2 assume !(0 != ~pumpRunning~0); 438#L496 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 475#L528 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret65, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 476#L935 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 434#L940 isHighWaterLevel_#t~ret65 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret65;havoc isHighWaterLevel_#t~ret65; 435#L648 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 445#L648-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 402#L654 processEnvironment_#t~ret46 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret46;havoc processEnvironment_#t~ret46; 403#L532 assume !(0 != processEnvironment_~tmp~4); 465#L503 havoc __utac_acc__Specification2_spec__2_#t~ret66, __utac_acc__Specification2_spec__2_#t~ret67, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 481#L895-1 __utac_acc__Specification2_spec__2_#t~ret66 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret66;havoc __utac_acc__Specification2_spec__2_#t~ret66; 458#L685 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 459#L685-1 [2020-11-29 20:19:00,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:19:00,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 20:19:00,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:19:00,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523257989] [2020-11-29 20:19:00,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:19:00,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:19:00,636 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:19:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:19:00,725 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:19:00,748 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:19:00,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:19:00,749 INFO L82 PathProgramCache]: Analyzing trace with hash -160550865, now seen corresponding path program 1 times [2020-11-29 20:19:00,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:19:00,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694692983] [2020-11-29 20:19:00,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:19:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:19:00,760 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:19:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:19:00,764 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:19:00,769 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:19:00,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:19:00,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1005025909, now seen corresponding path program 1 times [2020-11-29 20:19:00,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:19:00,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170470927] [2020-11-29 20:19:00,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:19:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:19:00,808 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:19:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:19:00,844 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:19:00,860 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:19:01,031 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-11-29 20:19:01,135 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-11-29 20:20:33,854 WARN L193 SmtUtils]: Spent 1.55 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 20:21:35,724 WARN L193 SmtUtils]: Spent 1.03 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 20:21:36,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:21:36 BoogieIcfgContainer [2020-11-29 20:21:36,003 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:21:36,003 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:21:36,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:21:36,004 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:21:36,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:18:59" (3/4) ... [2020-11-29 20:21:36,010 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 20:21:36,081 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_629d89a0-42ff-4e27-8a4c-0b82ab276a99/bin/uautomizer/witness.graphml [2020-11-29 20:21:36,081 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:21:36,083 INFO L168 Benchmark]: Toolchain (without parser) took 159158.41 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 66.7 MB in the beginning and 44.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 47.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:21:36,084 INFO L168 Benchmark]: CDTParser took 1.09 ms. Allocated memory is still 75.5 MB. Free memory was 44.5 MB in the beginning and 44.5 MB in the end (delta: 35.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:21:36,085 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.13 ms. Allocated memory is still 92.3 MB. Free memory was 66.5 MB in the beginning and 45.4 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:21:36,086 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.46 ms. Allocated memory is still 92.3 MB. Free memory was 45.3 MB in the beginning and 42.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:21:36,086 INFO L168 Benchmark]: Boogie Preprocessor took 51.69 ms. Allocated memory is still 92.3 MB. Free memory was 42.2 MB in the beginning and 39.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:21:36,087 INFO L168 Benchmark]: RCFGBuilder took 1352.60 ms. Allocated memory is still 92.3 MB. Free memory was 39.9 MB in the beginning and 50.0 MB in the end (delta: -10.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:21:36,088 INFO L168 Benchmark]: BuchiAutomizer took 156899.31 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 49.5 MB in the beginning and 46.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 58.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:21:36,089 INFO L168 Benchmark]: Witness Printer took 78.23 ms. Allocated memory is still 117.4 MB. Free memory was 46.9 MB in the beginning and 44.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:21:36,093 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.09 ms. Allocated memory is still 75.5 MB. Free memory was 44.5 MB in the beginning and 44.5 MB in the end (delta: 35.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 668.13 ms. Allocated memory is still 92.3 MB. Free memory was 66.5 MB in the beginning and 45.4 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.46 ms. Allocated memory is still 92.3 MB. Free memory was 45.3 MB in the beginning and 42.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.69 ms. Allocated memory is still 92.3 MB. Free memory was 42.2 MB in the beginning and 39.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1352.60 ms. Allocated memory is still 92.3 MB. Free memory was 39.9 MB in the beginning and 50.0 MB in the end (delta: -10.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 156899.31 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 49.5 MB in the beginning and 46.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 58.0 MB. Max. memory is 16.1 GB. * Witness Printer took 78.23 ms. Allocated memory is still 117.4 MB. Free memory was 46.9 MB in the beginning and 44.8 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 125 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 156.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 156.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 125 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 235 SDtfs, 217 SDslu, 54 SDs, 0 SdLazy, 24 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 423]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=31312} State at position 1 is {NULL=0, NULL=0, NULL=31312, NULL=31316, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@411b28d8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49284b90=86, NULL=31315, NULL=31317, methaneLevelCritical=0, retValue_acc=0, tmp=0, tmp___1=0, NULL=31323, NULL=0, NULL=31326, NULL=31319, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f4b2cfd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@341ba877=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ddd90af=0, waterLevel=1, NULL=0, NULL=0, NULL=31318, tmp___0=0, NULL=31332, \result=1, head=0, pumpRunning=0, NULL=0, NULL=0, tmp=1, NULL=0, \result=1, NULL=0, NULL=0, NULL=0, NULL=31341, NULL=0, NULL=0, NULL=31331, NULL=31330, tmp=1, methAndRunningLastTime=0, NULL=31313, head=0, tmp=0, NULL=0, NULL=0, NULL=31327, NULL=0, NULL=0, NULL=31329, NULL=0, NULL=31324, retValue_acc=0, NULL=31314, NULL=31325, tmp___0=0, NULL=0, NULL=31322, NULL=31340, NULL=31335, NULL=31321, NULL=0, NULL=0, NULL=0, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c690637=0, retValue_acc=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b3d56b0=0, NULL=0, NULL=31339, \result=0, NULL=31320, NULL=31333, retValue_acc=1, NULL=31338, NULL=31337, tmp___2=86, retValue_acc=1, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, NULL=31336, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c20273c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@705a61d5=0, NULL=31328, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L488] int pumpRunning = 0; [L489] int systemActive = 1; [L668] int methAndRunningLastTime ; [L745] int cleanupTimeShifts = 4; [L852] int waterLevel = 1; [L853] int methaneLevelCritical = 0; [L819] int retValue_acc ; [L820] int tmp ; [L736] int retValue_acc ; [L739] retValue_acc = 1 [L740] return (retValue_acc); [L826] tmp = valid_product() [L828] COND TRUE \read(tmp) [L673] methAndRunningLastTime = 0 [L414] int splverifierCounter ; [L415] int tmp ; [L416] int tmp___0 ; [L417] int tmp___1 ; [L418] int tmp___2 ; [L421] splverifierCounter = 0 Loop: [L423] COND TRUE 1 [L425] COND TRUE splverifierCounter < 4 [L431] tmp = __VERIFIER_nondet_int() [L433] COND FALSE !(\read(tmp)) [L441] tmp___0 = __VERIFIER_nondet_int() [L443] COND FALSE !(\read(tmp___0)) [L451] tmp___2 = __VERIFIER_nondet_int() [L453] COND TRUE \read(tmp___2) [L662] systemActive = 1 [L496] COND FALSE !(\read(pumpRunning)) [L503] COND TRUE \read(systemActive) [L525] int tmp ; [L528] COND TRUE ! pumpRunning [L640] int retValue_acc ; [L641] int tmp ; [L642] int tmp___0 ; [L932] int retValue_acc ; [L935] COND TRUE waterLevel < 2 [L936] retValue_acc = 1 [L937] return (retValue_acc); [L646] tmp = isHighWaterSensorDry() [L648] COND TRUE \read(tmp) [L649] tmp___0 = 0 [L653] retValue_acc = tmp___0 [L654] return (retValue_acc); [L530] tmp = isHighWaterLevel() [L532] COND FALSE !(\read(tmp)) [L678] int tmp ; [L679] int tmp___0 ; [L891] int retValue_acc ; [L894] retValue_acc = methaneLevelCritical [L895] return (retValue_acc); [L683] tmp = isMethaneLevelCritical() [L685] COND FALSE !(\read(tmp)) [L701] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...