./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product29.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_e37066b3-2b0c-45b0-b37a-f64f2b690af0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e37066b3-2b0c-45b0-b37a-f64f2b690af0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e37066b3-2b0c-45b0-b37a-f64f2b690af0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e37066b3-2b0c-45b0-b37a-f64f2b690af0/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product29.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e37066b3-2b0c-45b0-b37a-f64f2b690af0/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e37066b3-2b0c-45b0-b37a-f64f2b690af0/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 7e4f86dc48d359b31b3ab5f4412d745c46cabdc6 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:14:16,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:14:16,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:14:16,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:14:16,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:14:16,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:14:16,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:14:16,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:14:16,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:14:16,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:14:16,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:14:16,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:14:16,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:14:16,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:14:16,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:14:16,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:14:16,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:14:16,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:14:16,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:14:16,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:14:16,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:14:16,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:14:16,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:14:16,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:14:16,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:14:16,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:14:16,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:14:16,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:14:16,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:14:16,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:14:16,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:14:16,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:14:16,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:14:16,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:14:16,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:14:16,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:14:16,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:14:16,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:14:16,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:14:16,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:14:16,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:14:16,474 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e37066b3-2b0c-45b0-b37a-f64f2b690af0/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:14:16,505 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:14:16,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:14:16,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:14:16,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:14:16,508 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:14:16,509 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:14:16,509 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:14:16,509 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:14:16,510 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:14:16,510 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:14:16,511 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:14:16,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:14:16,512 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:14:16,512 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:14:16,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:14:16,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:14:16,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:14:16,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:14:16,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:14:16,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:14:16,515 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:14:16,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:14:16,516 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:14:16,516 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:14:16,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:14:16,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:14:16,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:14:16,518 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:14:16,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:14:16,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:14:16,519 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:14:16,520 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:14:16,521 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:14:16,521 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_e37066b3-2b0c-45b0-b37a-f64f2b690af0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e37066b3-2b0c-45b0-b37a-f64f2b690af0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e4f86dc48d359b31b3ab5f4412d745c46cabdc6 [2020-11-29 19:14:16,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:14:16,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:14:16,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:14:16,856 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:14:16,857 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:14:16,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e37066b3-2b0c-45b0-b37a-f64f2b690af0/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product29.cil.c [2020-11-29 19:14:16,933 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e37066b3-2b0c-45b0-b37a-f64f2b690af0/bin/uautomizer/data/e4bdbc3e5/403f03eb300849fcbb244250e0f2f20f/FLAG059195db1 [2020-11-29 19:14:17,467 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:14:17,467 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e37066b3-2b0c-45b0-b37a-f64f2b690af0/sv-benchmarks/c/product-lines/minepump_spec5_product29.cil.c [2020-11-29 19:14:17,481 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e37066b3-2b0c-45b0-b37a-f64f2b690af0/bin/uautomizer/data/e4bdbc3e5/403f03eb300849fcbb244250e0f2f20f/FLAG059195db1 [2020-11-29 19:14:17,790 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e37066b3-2b0c-45b0-b37a-f64f2b690af0/bin/uautomizer/data/e4bdbc3e5/403f03eb300849fcbb244250e0f2f20f [2020-11-29 19:14:17,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:14:17,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:14:17,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:14:17,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:14:17,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:14:17,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:14:17" (1/1) ... [2020-11-29 19:14:17,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ac4c29f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:14:17, skipping insertion in model container [2020-11-29 19:14:17,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:14:17" (1/1) ... [2020-11-29 19:14:17,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:14:17,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:14:18,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:14:18,226 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:14:18,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:14:18,402 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:14:18,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:14:18 WrapperNode [2020-11-29 19:14:18,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:14:18,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:14:18,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:14:18,406 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:14:18,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:14:18" (1/1) ... [2020-11-29 19:14:18,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:14:18" (1/1) ... [2020-11-29 19:14:18,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:14:18,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:14:18,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:14:18,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:14:18,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:14:18" (1/1) ... [2020-11-29 19:14:18,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:14:18" (1/1) ... [2020-11-29 19:14:18,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:14:18" (1/1) ... [2020-11-29 19:14:18,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:14:18" (1/1) ... [2020-11-29 19:14:18,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:14:18" (1/1) ... [2020-11-29 19:14:18,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:14:18" (1/1) ... [2020-11-29 19:14:18,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:14:18" (1/1) ... [2020-11-29 19:14:18,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:14:18,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:14:18,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:14:18,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:14:18,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:14:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e37066b3-2b0c-45b0-b37a-f64f2b690af0/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:14:18,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:14:18,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:14:18,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:14:18,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:14:19,709 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:14:19,713 INFO L298 CfgBuilder]: Removed 176 assume(true) statements. [2020-11-29 19:14:19,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:14:19 BoogieIcfgContainer [2020-11-29 19:14:19,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:14:19,717 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:14:19,717 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:14:19,720 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:14:19,721 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:14:19,721 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:14:17" (1/3) ... [2020-11-29 19:14:19,722 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@323f340f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:14:19, skipping insertion in model container [2020-11-29 19:14:19,722 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:14:19,723 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:14:18" (2/3) ... [2020-11-29 19:14:19,723 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@323f340f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:14:19, skipping insertion in model container [2020-11-29 19:14:19,723 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:14:19,723 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:14:19" (3/3) ... [2020-11-29 19:14:19,725 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product29.cil.c [2020-11-29 19:14:19,774 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:14:19,774 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:14:19,774 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:14:19,775 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:14:19,775 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:14:19,775 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:14:19,775 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:14:19,775 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:14:19,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states. [2020-11-29 19:14:19,836 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-29 19:14:19,836 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:14:19,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:14:19,846 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:14:19,846 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:14:19,846 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:14:19,846 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states. [2020-11-29 19:14:19,865 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-29 19:14:19,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:14:19,865 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:14:19,866 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:14:19,866 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:14:19,878 INFO L794 eck$LassoCheckResult]: Stem: 81#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);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(21);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(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 10#L-1true havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~5, main_~tmp~0;havoc main_~retValue_acc~5;havoc main_~tmp~0; 42#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 44#L75true main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 89#L272true assume 0 != main_~tmp~0; 39#L246true ~switchedOnBeforeTS~0 := 0; 28#L926true havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 57#L947-1true [2020-11-29 19:14:19,878 INFO L796 eck$LassoCheckResult]: Loop: 57#L947-1true assume !false; 113#L500true assume test_~splverifierCounter~0 < 4; 75#L501true test_~tmp~5 := test_#t~nondet40;havoc test_#t~nondet40; 84#L509true assume !(0 != test_~tmp~5); 86#L509-1true test_~tmp___0~1 := test_#t~nondet41;havoc test_#t~nondet41; 12#L519true assume !(0 != test_~tmp___0~1); 13#L519-1true test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 45#L529true assume 0 != test_~tmp___2~0; 37#L535-2true havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 92#L429true __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 54#L936true assume !(0 != ~pumpRunning~0); 41#L301true assume !(0 != ~systemActive~0); 77#L308true havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 55#L171true __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 52#L947true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 57#L947-1true [2020-11-29 19:14:19,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:14:19,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 19:14:19,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:14:19,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960985982] [2020-11-29 19:14:19,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:14:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:14:20,194 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:14:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:14:20,361 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:14:20,416 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:14:20,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:14:20,420 INFO L82 PathProgramCache]: Analyzing trace with hash 95582190, now seen corresponding path program 1 times [2020-11-29 19:14:20,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:14:20,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218690962] [2020-11-29 19:14:20,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:14:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:14:20,437 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:14:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:14:20,446 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:14:20,457 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:14:20,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:14:20,459 INFO L82 PathProgramCache]: Analyzing trace with hash 2029607400, now seen corresponding path program 1 times [2020-11-29 19:14:20,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:14:20,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354519664] [2020-11-29 19:14:20,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:14:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:14:20,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:14:20,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354519664] [2020-11-29 19:14:20,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:14:20,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:14:20,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802662135] [2020-11-29 19:14:20,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:14:20,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:14:20,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:14:20,771 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 6 states. [2020-11-29 19:14:21,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:14:21,004 INFO L93 Difference]: Finished difference Result 111 states and 154 transitions. [2020-11-29 19:14:21,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:14:21,008 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 154 transitions. [2020-11-29 19:14:21,012 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2020-11-29 19:14:21,017 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 104 states and 147 transitions. [2020-11-29 19:14:21,018 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2020-11-29 19:14:21,019 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2020-11-29 19:14:21,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 147 transitions. [2020-11-29 19:14:21,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:14:21,021 INFO L691 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2020-11-29 19:14:21,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 147 transitions. [2020-11-29 19:14:21,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-11-29 19:14:21,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-11-29 19:14:21,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 147 transitions. [2020-11-29 19:14:21,056 INFO L714 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2020-11-29 19:14:21,056 INFO L594 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2020-11-29 19:14:21,057 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:14:21,057 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 147 transitions. [2020-11-29 19:14:21,059 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2020-11-29 19:14:21,059 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:14:21,059 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:14:21,060 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:14:21,060 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:14:21,060 INFO L794 eck$LassoCheckResult]: Stem: 334#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);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(21);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(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 250#L-1 havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~5, main_~tmp~0;havoc main_~retValue_acc~5;havoc main_~tmp~0; 251#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 306#L75 main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 309#L272 assume 0 != main_~tmp~0; 303#L246 ~switchedOnBeforeTS~0 := 0; 287#L926 havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 273#L947-1 [2020-11-29 19:14:21,061 INFO L796 eck$LassoCheckResult]: Loop: 273#L947-1 assume !false; 322#L500 assume test_~splverifierCounter~0 < 4; 332#L501 test_~tmp~5 := test_#t~nondet40;havoc test_#t~nondet40; 333#L509 assume !(0 != test_~tmp~5); 276#L509-1 test_~tmp___0~1 := test_#t~nondet41;havoc test_#t~nondet41; 255#L519 assume !(0 != test_~tmp___0~1); 257#L519-1 test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 258#L529 assume 0 != test_~tmp___2~0; 300#L535-2 havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 301#L429 __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 320#L936 assume !(0 != ~pumpRunning~0); 305#L301 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret20, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 289#L359 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret19, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 290#L333-1 assume !(0 != ~pumpRunning~0); 292#L308 havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 321#L171 __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 317#L947 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 273#L947-1 [2020-11-29 19:14:21,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:14:21,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 19:14:21,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:14:21,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89464025] [2020-11-29 19:14:21,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:14:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:14:21,113 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:14:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:14:21,159 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:14:21,175 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:14:21,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:14:21,176 INFO L82 PathProgramCache]: Analyzing trace with hash -489209280, now seen corresponding path program 1 times [2020-11-29 19:14:21,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:14:21,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670077360] [2020-11-29 19:14:21,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:14:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:14:21,182 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:14:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:14:21,186 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:14:21,189 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:14:21,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:14:21,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1611821638, now seen corresponding path program 1 times [2020-11-29 19:14:21,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:14:21,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078251711] [2020-11-29 19:14:21,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:14:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:14:21,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:14:21,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078251711] [2020-11-29 19:14:21,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:14:21,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:14:21,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503066742] [2020-11-29 19:14:21,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:14:21,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:14:21,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:14:21,384 INFO L87 Difference]: Start difference. First operand 104 states and 147 transitions. cyclomatic complexity: 45 Second operand 5 states. [2020-11-29 19:14:21,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:14:21,622 INFO L93 Difference]: Finished difference Result 320 states and 453 transitions. [2020-11-29 19:14:21,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:14:21,623 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 320 states and 453 transitions. [2020-11-29 19:14:21,629 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2020-11-29 19:14:21,633 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 320 states to 320 states and 453 transitions. [2020-11-29 19:14:21,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 320 [2020-11-29 19:14:21,635 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 320 [2020-11-29 19:14:21,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 320 states and 453 transitions. [2020-11-29 19:14:21,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:14:21,643 INFO L691 BuchiCegarLoop]: Abstraction has 320 states and 453 transitions. [2020-11-29 19:14:21,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states and 453 transitions. [2020-11-29 19:14:21,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 201. [2020-11-29 19:14:21,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-11-29 19:14:21,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 280 transitions. [2020-11-29 19:14:21,672 INFO L714 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2020-11-29 19:14:21,672 INFO L594 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2020-11-29 19:14:21,672 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:14:21,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 280 transitions. [2020-11-29 19:14:21,674 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2020-11-29 19:14:21,675 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:14:21,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:14:21,675 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:14:21,676 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] [2020-11-29 19:14:21,676 INFO L794 eck$LassoCheckResult]: Stem: 788#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);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(21);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(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 690#L-1 havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~5, main_~tmp~0;havoc main_~retValue_acc~5;havoc main_~tmp~0; 691#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 749#L75 main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 752#L272 assume 0 != main_~tmp~0; 745#L246 ~switchedOnBeforeTS~0 := 0; 727#L926 havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 728#L947-1 [2020-11-29 19:14:21,676 INFO L796 eck$LassoCheckResult]: Loop: 728#L947-1 assume !false; 769#L500 assume test_~splverifierCounter~0 < 4; 782#L501 test_~tmp~5 := test_#t~nondet40;havoc test_#t~nondet40; 783#L509 assume !(0 != test_~tmp~5); 789#L509-1 test_~tmp___0~1 := test_#t~nondet41;havoc test_#t~nondet41; 695#L519 assume !(0 != test_~tmp___0~1); 697#L519-1 test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 698#L529 assume 0 != test_~tmp___2~0; 742#L535-2 havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 743#L429 __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 766#L936 assume !(0 != ~pumpRunning~0); 747#L301 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret20, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 748#L359 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret19, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 778#L333-1 assume !(0 != ~pumpRunning~0); 734#L308 havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 786#L171 __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 763#L947 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 764#L429-1 __utac_acc__Specification5_spec__3_#t~ret81 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret81;havoc __utac_acc__Specification5_spec__3_#t~ret81; 856#L951 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 728#L947-1 [2020-11-29 19:14:21,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:14:21,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 19:14:21,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:14:21,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618127653] [2020-11-29 19:14:21,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:14:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:14:21,725 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:14:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:14:21,797 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:14:21,807 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:14:21,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:14:21,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1978697445, now seen corresponding path program 1 times [2020-11-29 19:14:21,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:14:21,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532316895] [2020-11-29 19:14:21,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:14:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:14:21,841 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:14:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:14:21,845 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:14:21,850 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:14:21,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:14:21,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1522585109, now seen corresponding path program 1 times [2020-11-29 19:14:21,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:14:21,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709620410] [2020-11-29 19:14:21,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:14:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:14:21,900 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:14:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:14:21,947 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:14:21,961 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:15:36,618 WARN L193 SmtUtils]: Spent 1.24 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 19:16:35,191 WARN L193 SmtUtils]: Spent 58.55 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 19:16:35,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:16:35 BoogieIcfgContainer [2020-11-29 19:16:35,495 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:16:35,499 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:16:35,499 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:16:35,499 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:16:35,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:14:19" (3/4) ... [2020-11-29 19:16:35,506 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:16:35,559 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e37066b3-2b0c-45b0-b37a-f64f2b690af0/bin/uautomizer/witness.graphml [2020-11-29 19:16:35,560 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:16:35,562 INFO L168 Benchmark]: Toolchain (without parser) took 137767.24 ms. Allocated memory was 77.6 MB in the beginning and 148.9 MB in the end (delta: 71.3 MB). Free memory was 44.3 MB in the beginning and 68.6 MB in the end (delta: -24.3 MB). Peak memory consumption was 46.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:16:35,563 INFO L168 Benchmark]: CDTParser took 0.84 ms. Allocated memory is still 77.6 MB. Free memory was 50.7 MB in the beginning and 50.7 MB in the end (delta: 30.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:16:35,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 607.91 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 44.0 MB in the beginning and 61.8 MB in the end (delta: -17.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:16:35,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.99 ms. Allocated memory is still 94.4 MB. Free memory was 61.8 MB in the beginning and 58.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:16:35,565 INFO L168 Benchmark]: Boogie Preprocessor took 80.32 ms. Allocated memory is still 94.4 MB. Free memory was 58.2 MB in the beginning and 55.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:16:35,565 INFO L168 Benchmark]: RCFGBuilder took 1118.84 ms. Allocated memory is still 94.4 MB. Free memory was 55.5 MB in the beginning and 55.0 MB in the end (delta: 539.9 kB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:16:35,566 INFO L168 Benchmark]: BuchiAutomizer took 135778.92 ms. Allocated memory was 94.4 MB in the beginning and 148.9 MB in the end (delta: 54.5 MB). Free memory was 54.4 MB in the beginning and 71.6 MB in the end (delta: -17.2 MB). Peak memory consumption was 80.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:16:35,567 INFO L168 Benchmark]: Witness Printer took 61.46 ms. Allocated memory is still 148.9 MB. Free memory was 71.6 MB in the beginning and 68.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:16:35,570 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84 ms. Allocated memory is still 77.6 MB. Free memory was 50.7 MB in the beginning and 50.7 MB in the end (delta: 30.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 607.91 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 44.0 MB in the beginning and 61.8 MB in the end (delta: -17.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.99 ms. Allocated memory is still 94.4 MB. Free memory was 61.8 MB in the beginning and 58.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.32 ms. Allocated memory is still 94.4 MB. Free memory was 58.2 MB in the beginning and 55.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1118.84 ms. Allocated memory is still 94.4 MB. Free memory was 55.5 MB in the beginning and 55.0 MB in the end (delta: 539.9 kB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 135778.92 ms. Allocated memory was 94.4 MB in the beginning and 148.9 MB in the end (delta: 54.5 MB). Free memory was 54.4 MB in the beginning and 71.6 MB in the end (delta: -17.2 MB). Peak memory consumption was 80.7 MB. Max. memory is 16.1 GB. * Witness Printer took 61.46 ms. Allocated memory is still 148.9 MB. Free memory was 71.6 MB in the beginning and 68.6 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 201 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 135.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 135.0s. Construction of modules took 0.2s. 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, 119 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 201 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 390 SDtfs, 999 SDslu, 470 SDs, 0 SdLazy, 105 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 499]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1076} State at position 1 is {NULL=14018, NULL=0, NULL=0, NULL=0, NULL=0, NULL=1076, NULL=14021, retValue_acc=0, NULL=1081, NULL=14010, NULL=14015, NULL=14023, NULL=14029, methaneLevelCritical=0, tmp=1, NULL=0, tmp=0, NULL=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=14027, NULL=14009, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7686efc9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14f71eba=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a89cbf6=0, cleanupTimeShifts=4, NULL=14020, switchedOnBeforeTS=0, \result=0, NULL=14030, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e9d5f09=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a67b76e=46, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7dc74a4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b88c31d=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=14025, \result=1, head=0, pumpRunning=0, tmp___0=0, tmp=1, \result=0, NULL=14013, NULL=0, NULL=14011, NULL=0, NULL=0, NULL=0, NULL=14012, NULL=0, NULL=0, NULL=14028, NULL=0, NULL=0, NULL=14026, NULL=0, retValue_acc=1, tmp___2=46, NULL=0, NULL=14008, tmp___0=0, NULL=1080, splverifierCounter=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b5fda9e=0, NULL=14016, NULL=14019, NULL=14014, NULL=1078, tmp=0, head=0, tmp=0, NULL=0, NULL=0, NULL=14024, NULL=0, NULL=14022, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ca65b0c=0, NULL=0, NULL=0, NULL=14017, NULL=1079, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@181e86dd=0, NULL=1077} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L185] int cleanupTimeShifts = 4; [L289] int pumpRunning = 0; [L290] int systemActive = 1; [L723] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L920] int switchedOnBeforeTS ; [L263] int retValue_acc ; [L264] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L270] tmp = valid_product() [L272] COND TRUE \read(tmp) [L925] switchedOnBeforeTS = 0 [L490] int splverifierCounter ; [L491] int tmp ; [L492] int tmp___0 ; [L493] int tmp___1 ; [L494] int tmp___2 ; [L497] splverifierCounter = 0 Loop: [L499] COND TRUE 1 [L501] COND TRUE splverifierCounter < 4 [L507] tmp = __VERIFIER_nondet_int() [L509] COND FALSE !(\read(tmp)) [L517] tmp___0 = __VERIFIER_nondet_int() [L519] COND FALSE !(\read(tmp___0)) [L527] tmp___2 = __VERIFIER_nondet_int() [L529] COND TRUE \read(tmp___2) [L425] int retValue_acc ; [L428] retValue_acc = pumpRunning [L429] return (retValue_acc); [L934] switchedOnBeforeTS = isPumpRunning() [L301] COND FALSE !(\read(pumpRunning)) [L308] COND TRUE \read(systemActive) [L356] int tmp ; [L359] COND FALSE !(\read(pumpRunning)) [L330] int tmp ; [L333] COND FALSE !(\read(pumpRunning)) [L940] int tmp ; [L941] int tmp___0 ; [L167] int retValue_acc ; [L170] retValue_acc = waterLevel [L171] return (retValue_acc); [L945] tmp = getWaterLevel() [L947] COND TRUE tmp != 2 [L425] int retValue_acc ; [L428] retValue_acc = pumpRunning [L429] return (retValue_acc); [L949] tmp___0 = isPumpRunning() [L951] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...