./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_14043ce0-bc33-4906-ba44-4d0c79ed395f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_14043ce0-bc33-4906-ba44-4d0c79ed395f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_14043ce0-bc33-4906-ba44-4d0c79ed395f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_14043ce0-bc33-4906-ba44-4d0c79ed395f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_14043ce0-bc33-4906-ba44-4d0c79ed395f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_14043ce0-bc33-4906-ba44-4d0c79ed395f/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 2d7e0a730b4d799fc1a50a54053b5e66ba5f6d84 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-69874e2 [2020-12-01 15:53:56,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:53:56,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:53:56,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:53:56,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:53:56,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:53:56,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:53:56,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:53:56,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:53:56,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:53:56,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:53:56,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:53:56,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:53:56,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:53:56,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:53:56,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:53:56,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:53:56,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:53:56,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:53:56,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:53:56,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:53:56,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:53:56,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:53:56,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:53:56,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:53:56,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:53:56,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:53:56,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:53:56,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:53:56,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:53:56,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:53:56,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:53:56,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:53:56,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:53:56,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:53:56,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:53:56,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:53:56,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:53:56,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:53:56,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:53:56,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:53:56,418 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_14043ce0-bc33-4906-ba44-4d0c79ed395f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:53:56,461 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:53:56,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:53:56,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:53:56,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:53:56,464 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:53:56,465 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:53:56,465 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:53:56,465 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:53:56,465 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:53:56,466 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:53:56,467 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:53:56,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:53:56,468 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:53:56,468 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:53:56,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:53:56,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:53:56,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:53:56,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:53:56,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:53:56,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:53:56,469 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:53:56,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:53:56,470 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:53:56,470 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:53:56,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:53:56,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:53:56,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:53:56,471 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:53:56,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:53:56,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:53:56,474 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:53:56,474 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:53:56,475 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:53:56,476 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_14043ce0-bc33-4906-ba44-4d0c79ed395f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_14043ce0-bc33-4906-ba44-4d0c79ed395f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d7e0a730b4d799fc1a50a54053b5e66ba5f6d84 [2020-12-01 15:53:56,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:53:56,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:53:56,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:53:56,907 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:53:56,908 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:53:56,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_14043ce0-bc33-4906-ba44-4d0c79ed395f/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2020-12-01 15:53:57,007 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_14043ce0-bc33-4906-ba44-4d0c79ed395f/bin/uautomizer/data/ca974dc8a/b6096d60c3f042c9a2b5ae07373695ed/FLAG436c3d604 [2020-12-01 15:53:57,733 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:53:57,734 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_14043ce0-bc33-4906-ba44-4d0c79ed395f/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2020-12-01 15:53:57,748 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_14043ce0-bc33-4906-ba44-4d0c79ed395f/bin/uautomizer/data/ca974dc8a/b6096d60c3f042c9a2b5ae07373695ed/FLAG436c3d604 [2020-12-01 15:53:57,999 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_14043ce0-bc33-4906-ba44-4d0c79ed395f/bin/uautomizer/data/ca974dc8a/b6096d60c3f042c9a2b5ae07373695ed [2020-12-01 15:53:58,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:53:58,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:53:58,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:53:58,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:53:58,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:53:58,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:53:58" (1/1) ... [2020-12-01 15:53:58,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1268bc2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:58, skipping insertion in model container [2020-12-01 15:53:58,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:53:58" (1/1) ... [2020-12-01 15:53:58,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:53:58,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:53:58,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:53:58,441 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:53:58,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:53:58,619 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:53:58,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:58 WrapperNode [2020-12-01 15:53:58,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:53:58,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:53:58,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:53:58,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:53:58,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:58" (1/1) ... [2020-12-01 15:53:58,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:58" (1/1) ... [2020-12-01 15:53:58,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:53:58,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:53:58,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:53:58,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:53:58,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:58" (1/1) ... [2020-12-01 15:53:58,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:58" (1/1) ... [2020-12-01 15:53:58,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:58" (1/1) ... [2020-12-01 15:53:58,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:58" (1/1) ... [2020-12-01 15:53:58,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:58" (1/1) ... [2020-12-01 15:53:58,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:58" (1/1) ... [2020-12-01 15:53:58,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:58" (1/1) ... [2020-12-01 15:53:58,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:53:58,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:53:58,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:53:58,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:53:58,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14043ce0-bc33-4906-ba44-4d0c79ed395f/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 [2020-12-01 15:53:58,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:53:58,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:53:58,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:53:58,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:53:59,853 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:53:59,853 INFO L298 CfgBuilder]: Removed 112 assume(true) statements. [2020-12-01 15:53:59,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:53:59 BoogieIcfgContainer [2020-12-01 15:53:59,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:53:59,856 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:53:59,856 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:53:59,862 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:53:59,871 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:53:59,872 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:53:58" (1/3) ... [2020-12-01 15:53:59,874 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2bf4c836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:53:59, skipping insertion in model container [2020-12-01 15:53:59,874 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:53:59,875 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:58" (2/3) ... [2020-12-01 15:53:59,875 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2bf4c836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:53:59, skipping insertion in model container [2020-12-01 15:53:59,875 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:53:59,875 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:53:59" (3/3) ... [2020-12-01 15:53:59,878 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2020-12-01 15:53:59,940 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:53:59,940 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:53:59,940 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:53:59,941 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:53:59,941 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:53:59,941 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:53:59,941 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:53:59,941 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:53:59,959 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states. [2020-12-01 15:53:59,982 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2020-12-01 15:53:59,982 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:53:59,982 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:53:59,991 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:53:59,991 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:59,991 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:53:59,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states. [2020-12-01 15:53:59,997 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2020-12-01 15:53:59,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:53:59,998 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:53:59,998 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:53:59,999 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:00,004 INFO L794 eck$LassoCheckResult]: Stem: 38#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 17#L-1true havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 67#L378true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 70#L386true main_#t~ret80 := valid_product_#res;main_~tmp~8 := main_#t~ret80;havoc main_#t~ret80; 11#L928true assume 0 != main_~tmp~8; 58#L905true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3#L325-1true [2020-12-01 15:54:00,004 INFO L796 eck$LassoCheckResult]: Loop: 3#L325-1true assume !false; 4#L58true assume test_~splverifierCounter~0 < 4; 35#L59true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 66#L67true assume !(0 != test_~tmp~0); 64#L67-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 44#L77true assume !(0 != test_~tmp___0~0); 41#L77-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 28#L87true assume 0 != test_~tmp___2~0; 52#L93-1true assume !(0 != ~pumpRunning~0); 83#L130true assume !(0 != ~systemActive~0); 56#L137true havoc __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 12#L800true __utac_acc__Specification3_spec__1_#t~ret31 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret31;havoc __utac_acc__Specification3_spec__1_#t~ret31; 57#L319true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 3#L325-1true [2020-12-01 15:54:00,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:00,010 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-12-01 15:54:00,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:00,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461804483] [2020-12-01 15:54:00,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:00,338 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:00,477 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:00,535 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:00,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:00,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1673095042, now seen corresponding path program 1 times [2020-12-01 15:54:00,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:00,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412087432] [2020-12-01 15:54:00,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:00,569 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:00,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:00,587 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:00,592 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:00,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:00,597 INFO L82 PathProgramCache]: Analyzing trace with hash 41183896, now seen corresponding path program 1 times [2020-12-01 15:54:00,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:00,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004646585] [2020-12-01 15:54:00,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:00,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:54:00,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004646585] [2020-12-01 15:54:00,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:54:00,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:54:00,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584451797] [2020-12-01 15:54:00,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:00,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:54:00,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:54:00,912 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 6 states. [2020-12-01 15:54:01,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:01,347 INFO L93 Difference]: Finished difference Result 210 states and 291 transitions. [2020-12-01 15:54:01,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:54:01,349 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 291 transitions. [2020-12-01 15:54:01,367 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 133 [2020-12-01 15:54:01,381 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 189 states and 270 transitions. [2020-12-01 15:54:01,382 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 189 [2020-12-01 15:54:01,386 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 189 [2020-12-01 15:54:01,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 189 states and 270 transitions. [2020-12-01 15:54:01,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:54:01,390 INFO L692 BuchiCegarLoop]: Abstraction has 189 states and 270 transitions. [2020-12-01 15:54:01,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states and 270 transitions. [2020-12-01 15:54:01,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 120. [2020-12-01 15:54:01,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-12-01 15:54:01,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 171 transitions. [2020-12-01 15:54:01,443 INFO L715 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2020-12-01 15:54:01,443 INFO L595 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2020-12-01 15:54:01,443 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:54:01,443 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 171 transitions. [2020-12-01 15:54:01,446 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2020-12-01 15:54:01,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:54:01,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:54:01,447 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:54:01,447 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:01,447 INFO L794 eck$LassoCheckResult]: Stem: 358#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 334#L-1 havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 335#L378 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 380#L386 main_#t~ret80 := valid_product_#res;main_~tmp~8 := main_#t~ret80;havoc main_#t~ret80; 327#L928 assume 0 != main_~tmp~8; 328#L905 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 311#L325-1 [2020-12-01 15:54:01,448 INFO L796 eck$LassoCheckResult]: Loop: 311#L325-1 assume !false; 312#L58 assume test_~splverifierCounter~0 < 4; 313#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 356#L67 assume !(0 != test_~tmp~0); 348#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 362#L77 assume !(0 != test_~tmp___0~0); 360#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 349#L87 assume 0 != test_~tmp___2~0; 350#L93-1 assume !(0 != ~pumpRunning~0); 369#L130 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 379#L162 assume !(0 != ~pumpRunning~0); 366#L137 havoc __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 329#L800 __utac_acc__Specification3_spec__1_#t~ret31 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret31;havoc __utac_acc__Specification3_spec__1_#t~ret31; 330#L319 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 311#L325-1 [2020-12-01 15:54:01,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:01,448 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-12-01 15:54:01,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:01,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318575173] [2020-12-01 15:54:01,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:01,498 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:01,565 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:01,581 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:01,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:01,582 INFO L82 PathProgramCache]: Analyzing trace with hash -353331282, now seen corresponding path program 1 times [2020-12-01 15:54:01,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:01,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910052217] [2020-12-01 15:54:01,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:01,587 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:01,591 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:01,595 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:01,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:01,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1249708244, now seen corresponding path program 1 times [2020-12-01 15:54:01,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:01,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319556972] [2020-12-01 15:54:01,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:01,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:54:01,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319556972] [2020-12-01 15:54:01,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:54:01,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:54:01,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617133062] [2020-12-01 15:54:01,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:01,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:54:01,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:54:01,737 INFO L87 Difference]: Start difference. First operand 120 states and 171 transitions. cyclomatic complexity: 54 Second operand 5 states. [2020-12-01 15:54:01,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:01,879 INFO L93 Difference]: Finished difference Result 397 states and 578 transitions. [2020-12-01 15:54:01,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 15:54:01,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 397 states and 578 transitions. [2020-12-01 15:54:01,890 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 294 [2020-12-01 15:54:01,903 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 397 states to 397 states and 578 transitions. [2020-12-01 15:54:01,903 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 397 [2020-12-01 15:54:01,905 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 397 [2020-12-01 15:54:01,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 397 states and 578 transitions. [2020-12-01 15:54:01,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:54:01,910 INFO L692 BuchiCegarLoop]: Abstraction has 397 states and 578 transitions. [2020-12-01 15:54:01,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states and 578 transitions. [2020-12-01 15:54:01,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 234. [2020-12-01 15:54:01,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-12-01 15:54:01,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 328 transitions. [2020-12-01 15:54:01,944 INFO L715 BuchiCegarLoop]: Abstraction has 234 states and 328 transitions. [2020-12-01 15:54:01,944 INFO L595 BuchiCegarLoop]: Abstraction has 234 states and 328 transitions. [2020-12-01 15:54:01,944 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:54:01,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 234 states and 328 transitions. [2020-12-01 15:54:01,946 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 168 [2020-12-01 15:54:01,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:54:01,946 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:54:01,947 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:54:01,947 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:01,947 INFO L794 eck$LassoCheckResult]: Stem: 895#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 870#L-1 havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 871#L378 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 935#L386 main_#t~ret80 := valid_product_#res;main_~tmp~8 := main_#t~ret80;havoc main_#t~ret80; 863#L928 assume 0 != main_~tmp~8; 864#L905 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 920#L325-1 [2020-12-01 15:54:01,948 INFO L796 eck$LassoCheckResult]: Loop: 920#L325-1 assume !false; 983#L58 assume test_~splverifierCounter~0 < 4; 892#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 893#L67 assume !(0 != test_~tmp~0); 882#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 902#L77 assume !(0 != test_~tmp___0~0); 900#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 885#L87 assume 0 != test_~tmp___2~0; 886#L93-1 assume !(0 != ~pumpRunning~0); 910#L130 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 934#L162 assume !(0 != ~pumpRunning~0); 908#L137 havoc __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 917#L800 __utac_acc__Specification3_spec__1_#t~ret31 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret31;havoc __utac_acc__Specification3_spec__1_#t~ret31; 918#L319 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 919#L832 __utac_acc__Specification3_spec__1_#t~ret32 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret32;havoc __utac_acc__Specification3_spec__1_#t~ret32; 984#L325 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 920#L325-1 [2020-12-01 15:54:01,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:01,948 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-12-01 15:54:01,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:01,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657704745] [2020-12-01 15:54:01,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:02,002 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:02,076 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:02,085 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:02,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:02,086 INFO L82 PathProgramCache]: Analyzing trace with hash -248939422, now seen corresponding path program 1 times [2020-12-01 15:54:02,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:02,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620072933] [2020-12-01 15:54:02,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:02,103 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:02,107 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:02,111 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:02,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:02,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1621214200, now seen corresponding path program 1 times [2020-12-01 15:54:02,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:02,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592395534] [2020-12-01 15:54:02,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:02,173 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:02,215 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:02,239 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:55:27,885 WARN L197 SmtUtils]: Spent 1.43 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-12-01 15:56:21,881 WARN L197 SmtUtils]: Spent 53.96 s on a formula simplification that was a NOOP. DAG size: 433 [2020-12-01 15:56:22,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:56:22 BoogieIcfgContainer [2020-12-01 15:56:22,104 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:56:22,105 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:56:22,105 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:56:22,105 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:56:22,106 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:53:59" (3/4) ... [2020-12-01 15:56:22,108 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-12-01 15:56:22,213 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_14043ce0-bc33-4906-ba44-4d0c79ed395f/bin/uautomizer/witness.graphml [2020-12-01 15:56:22,213 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:56:22,215 INFO L168 Benchmark]: Toolchain (without parser) took 144210.55 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 77.3 MB in the beginning and 87.7 MB in the end (delta: -10.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:22,215 INFO L168 Benchmark]: CDTParser took 0.96 ms. Allocated memory is still 81.8 MB. Free memory is still 38.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:56:22,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 616.25 ms. Allocated memory is still 107.0 MB. Free memory was 77.3 MB in the beginning and 74.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:22,217 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.13 ms. Allocated memory is still 107.0 MB. Free memory was 74.4 MB in the beginning and 71.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:22,217 INFO L168 Benchmark]: Boogie Preprocessor took 75.01 ms. Allocated memory is still 107.0 MB. Free memory was 71.1 MB in the beginning and 69.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:22,219 INFO L168 Benchmark]: RCFGBuilder took 1068.77 ms. Allocated memory is still 107.0 MB. Free memory was 68.7 MB in the beginning and 64.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:22,220 INFO L168 Benchmark]: BuchiAutomizer took 142248.58 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 63.7 MB in the beginning and 90.7 MB in the end (delta: -27.0 MB). Peak memory consumption was 68.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:22,221 INFO L168 Benchmark]: Witness Printer took 108.36 ms. Allocated memory is still 130.0 MB. Free memory was 90.7 MB in the beginning and 87.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:22,224 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.96 ms. Allocated memory is still 81.8 MB. Free memory is still 38.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 616.25 ms. Allocated memory is still 107.0 MB. Free memory was 77.3 MB in the beginning and 74.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.13 ms. Allocated memory is still 107.0 MB. Free memory was 74.4 MB in the beginning and 71.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.01 ms. Allocated memory is still 107.0 MB. Free memory was 71.1 MB in the beginning and 69.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1068.77 ms. Allocated memory is still 107.0 MB. Free memory was 68.7 MB in the beginning and 64.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 142248.58 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 63.7 MB in the beginning and 90.7 MB in the end (delta: -27.0 MB). Peak memory consumption was 68.3 MB. Max. memory is 16.1 GB. * Witness Printer took 108.36 ms. Allocated memory is still 130.0 MB. Free memory was 90.7 MB in the beginning and 87.7 MB in the end (delta: 3.0 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 6 locations. The remainder module has 234 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 142.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 141.2s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 232 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 234 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 255 SDtfs, 894 SDslu, 949 SDs, 0 SdLazy, 81 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 57]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=4650, NULL=0, NULL=0, NULL=0, NULL=4646, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70f270cf=60, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fac19dd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@796c5e54=0, NULL=1, NULL=4629, NULL=4637, NULL=4638, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5014d0d3=0, NULL=4643, NULL=4645, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@eddba32=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18bad2f2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51a82991=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b31a785=0, NULL=0, NULL=0, tmp___1=0, NULL=4653, NULL=4649, NULL=0, NULL=0, cleanupTimeShifts=4, tmp=0, NULL=4654, tmp=0, NULL=4648, NULL=4634, tmp___0=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=4636, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a69b3de=0, retValue_acc=0, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=4647, \result=1, head=0, pumpRunning=0, NULL=4632, \result=0, NULL=4640, NULL=0, NULL=4652, NULL=0, tmp=1, NULL=0, retValue_acc=1, NULL=4630, NULL=0, NULL=0, NULL=0, NULL=4633, NULL=4628, NULL=0, retValue_acc=1, NULL=4627, tmp___2=60, NULL=0, splverifierCounter=0, NULL=0, \result=0, NULL=4644, NULL=4651, tmp=0, tmp___1=0, head=0, NULL=4639, NULL=4641, NULL=4631, NULL=4635, NULL=4642} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L560] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L757] int waterLevel = 1; [L758] int methaneLevelCritical = 0; [L846] int cleanupTimeShifts = 4; [L919] int retValue_acc ; [L920] int tmp ; [L382] int retValue_acc ; [L385] retValue_acc = 1 [L386] return (retValue_acc); [L926] tmp = valid_product() [L928] COND TRUE \read(tmp) [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 Loop: [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L130] COND FALSE !(\read(pumpRunning)) [L137] COND TRUE \read(systemActive) [L159] int tmp ; [L162] COND FALSE !(\read(pumpRunning)) [L311] int tmp ; [L312] int tmp___0 ; [L313] int tmp___1 ; [L796] int retValue_acc ; [L799] retValue_acc = methaneLevelCritical [L800] return (retValue_acc); [L317] tmp = isMethaneLevelCritical() [L319] COND FALSE !(\read(tmp)) [L828] int retValue_acc ; [L831] retValue_acc = waterLevel [L832] return (retValue_acc); [L323] tmp___0 = getWaterLevel() [L325] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...