./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product63.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_3ea590a1-2ea6-4d85-a6cf-36f8f149a6f7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3ea590a1-2ea6-4d85-a6cf-36f8f149a6f7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3ea590a1-2ea6-4d85-a6cf-36f8f149a6f7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3ea590a1-2ea6-4d85-a6cf-36f8f149a6f7/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3ea590a1-2ea6-4d85-a6cf-36f8f149a6f7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3ea590a1-2ea6-4d85-a6cf-36f8f149a6f7/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 4934f434020ea5812d4fa6d4f597788b669b23a9 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:51:45,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:51:45,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:51:45,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:51:45,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:51:45,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:51:45,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:51:45,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:51:45,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:51:45,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:51:45,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:51:45,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:51:45,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:51:45,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:51:45,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:51:45,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:51:45,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:51:45,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:51:45,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:51:45,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:51:45,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:51:45,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:51:45,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:51:45,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:51:45,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:51:45,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:51:45,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:51:45,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:51:45,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:51:45,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:51:45,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:51:45,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:51:45,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:51:45,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:51:45,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:51:45,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:51:45,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:51:45,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:51:45,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:51:45,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:51:45,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:51:45,559 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3ea590a1-2ea6-4d85-a6cf-36f8f149a6f7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:51:45,600 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:51:45,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:51:45,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:51:45,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:51:45,607 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:51:45,607 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:51:45,607 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:51:45,607 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:51:45,608 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:51:45,608 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:51:45,609 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:51:45,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:51:45,610 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:51:45,610 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:51:45,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:51:45,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:51:45,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:51:45,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:51:45,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:51:45,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:51:45,612 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:51:45,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:51:45,612 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:51:45,612 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:51:45,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:51:45,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:51:45,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:51:45,613 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:51:45,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:51:45,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:51:45,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:51:45,616 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:51:45,617 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:51:45,618 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_3ea590a1-2ea6-4d85-a6cf-36f8f149a6f7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3ea590a1-2ea6-4d85-a6cf-36f8f149a6f7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4934f434020ea5812d4fa6d4f597788b669b23a9 [2020-11-29 18:51:45,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:51:45,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:51:45,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:51:45,922 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:51:45,923 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:51:45,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3ea590a1-2ea6-4d85-a6cf-36f8f149a6f7/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c [2020-11-29 18:51:45,987 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ea590a1-2ea6-4d85-a6cf-36f8f149a6f7/bin/uautomizer/data/40fcc0768/bdeee74245d945428bb6f1130d3155e5/FLAGda6379e05 [2020-11-29 18:51:46,533 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:51:46,534 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3ea590a1-2ea6-4d85-a6cf-36f8f149a6f7/sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c [2020-11-29 18:51:46,554 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ea590a1-2ea6-4d85-a6cf-36f8f149a6f7/bin/uautomizer/data/40fcc0768/bdeee74245d945428bb6f1130d3155e5/FLAGda6379e05 [2020-11-29 18:51:46,853 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3ea590a1-2ea6-4d85-a6cf-36f8f149a6f7/bin/uautomizer/data/40fcc0768/bdeee74245d945428bb6f1130d3155e5 [2020-11-29 18:51:46,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:51:46,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:51:46,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:51:46,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:51:46,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:51:46,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:51:46" (1/1) ... [2020-11-29 18:51:46,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd4b94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:46, skipping insertion in model container [2020-11-29 18:51:46,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:51:46" (1/1) ... [2020-11-29 18:51:46,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:51:46,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:51:47,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:51:47,273 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:51:47,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:51:47,450 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:51:47,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:47 WrapperNode [2020-11-29 18:51:47,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:51:47,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:51:47,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:51:47,456 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:51:47,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:47" (1/1) ... [2020-11-29 18:51:47,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:47" (1/1) ... [2020-11-29 18:51:47,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:51:47,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:51:47,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:51:47,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:51:47,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:47" (1/1) ... [2020-11-29 18:51:47,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:47" (1/1) ... [2020-11-29 18:51:47,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:47" (1/1) ... [2020-11-29 18:51:47,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:47" (1/1) ... [2020-11-29 18:51:47,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:47" (1/1) ... [2020-11-29 18:51:47,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:47" (1/1) ... [2020-11-29 18:51:47,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:47" (1/1) ... [2020-11-29 18:51:47,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:51:47,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:51:47,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:51:47,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:51:47,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3ea590a1-2ea6-4d85-a6cf-36f8f149a6f7/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 18:51:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:51:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:51:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:51:47,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:51:49,168 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:51:49,168 INFO L298 CfgBuilder]: Removed 358 assume(true) statements. [2020-11-29 18:51:49,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:51:49 BoogieIcfgContainer [2020-11-29 18:51:49,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:51:49,172 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:51:49,172 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:51:49,175 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:51:49,176 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:51:49,176 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:51:46" (1/3) ... [2020-11-29 18:51:49,177 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fee106d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:51:49, skipping insertion in model container [2020-11-29 18:51:49,178 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:51:49,178 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:47" (2/3) ... [2020-11-29 18:51:49,178 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fee106d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:51:49, skipping insertion in model container [2020-11-29 18:51:49,178 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:51:49,179 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:51:49" (3/3) ... [2020-11-29 18:51:49,180 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product63.cil.c [2020-11-29 18:51:49,223 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:51:49,223 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:51:49,224 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:51:49,224 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:51:49,224 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:51:49,224 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:51:49,225 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:51:49,225 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:51:49,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 227 states. [2020-11-29 18:51:49,302 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2020-11-29 18:51:49,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:51:49,302 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:51:49,313 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:51:49,314 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:51:49,314 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:51:49,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 227 states. [2020-11-29 18:51:49,329 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2020-11-29 18:51:49,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:51:49,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:51:49,337 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:51:49,338 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:51:49,343 INFO L794 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 4#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 95#L534true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 197#L542true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 198#L498true assume 0 != main_~tmp~3; 166#L471true havoc test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 214#L558-1true [2020-11-29 18:51:49,344 INFO L796 eck$LassoCheckResult]: Loop: 214#L558-1true assume !false; 8#L962true assume test_~splverifierCounter~0 < 4; 109#L963true test_~tmp~11 := test_#t~nondet79;havoc test_#t~nondet79; 219#L971true assume !(0 != test_~tmp~11); 222#L971-1true test_~tmp___0~3 := test_#t~nondet80;havoc test_#t~nondet80; 132#L981true assume !(0 != test_~tmp___0~3); 130#L981-1true test_~tmp___2~0 := test_#t~nondet81;havoc test_#t~nondet81; 96#L991true assume 0 != test_~tmp___2~0; 136#L997-1true assume !(0 != ~pumpRunning~0); 40#L703true assume !(0 != ~systemActive~0); 103#L710true havoc __utac_acc__Specification4_spec__1_#t~ret44, __utac_acc__Specification4_spec__1_#t~ret45, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 134#L656true __utac_acc__Specification4_spec__1_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret44;havoc __utac_acc__Specification4_spec__1_#t~ret44; 211#L558true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 214#L558-1true [2020-11-29 18:51:49,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:51:49,350 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 18:51:49,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:51:49,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758584272] [2020-11-29 18:51:49,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:51:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:51:49,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:51:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:51:49,801 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:51:49,852 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:51:49,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:51:49,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1666538035, now seen corresponding path program 1 times [2020-11-29 18:51:49,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:51:49,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929581741] [2020-11-29 18:51:49,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:51:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:51:49,867 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:51:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:51:49,872 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:51:49,877 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:51:49,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:51:49,879 INFO L82 PathProgramCache]: Analyzing trace with hash 47740903, now seen corresponding path program 1 times [2020-11-29 18:51:49,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:51:49,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767769693] [2020-11-29 18:51:49,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:51:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:51:50,071 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 18:51:50,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767769693] [2020-11-29 18:51:50,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:51:50,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:51:50,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730152936] [2020-11-29 18:51:50,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:51:50,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:51:50,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:51:50,203 INFO L87 Difference]: Start difference. First operand 227 states. Second operand 6 states. [2020-11-29 18:51:50,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:51:50,551 INFO L93 Difference]: Finished difference Result 492 states and 714 transitions. [2020-11-29 18:51:50,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:51:50,553 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 492 states and 714 transitions. [2020-11-29 18:51:50,567 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 321 [2020-11-29 18:51:50,593 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 492 states to 471 states and 693 transitions. [2020-11-29 18:51:50,594 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 471 [2020-11-29 18:51:50,597 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 471 [2020-11-29 18:51:50,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 471 states and 693 transitions. [2020-11-29 18:51:50,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:51:50,609 INFO L691 BuchiCegarLoop]: Abstraction has 471 states and 693 transitions. [2020-11-29 18:51:50,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states and 693 transitions. [2020-11-29 18:51:50,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 258. [2020-11-29 18:51:50,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-11-29 18:51:50,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 378 transitions. [2020-11-29 18:51:50,675 INFO L714 BuchiCegarLoop]: Abstraction has 258 states and 378 transitions. [2020-11-29 18:51:50,676 INFO L594 BuchiCegarLoop]: Abstraction has 258 states and 378 transitions. [2020-11-29 18:51:50,676 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:51:50,676 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 258 states and 378 transitions. [2020-11-29 18:51:50,679 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2020-11-29 18:51:50,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:51:50,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:51:50,682 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:51:50,682 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:51:50,682 INFO L794 eck$LassoCheckResult]: Stem: 880#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 739#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 740#L534 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 876#L542 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 954#L498 assume 0 != main_~tmp~3; 950#L471 havoc test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 942#L558-1 [2020-11-29 18:51:50,683 INFO L796 eck$LassoCheckResult]: Loop: 942#L558-1 assume !false; 746#L962 assume test_~splverifierCounter~0 < 4; 747#L963 test_~tmp~11 := test_#t~nondet79;havoc test_#t~nondet79; 897#L971 assume !(0 != test_~tmp~11); 738#L971-1 test_~tmp___0~3 := test_#t~nondet80;havoc test_#t~nondet80; 924#L981 assume !(0 != test_~tmp___0~3); 873#L981-1 test_~tmp___2~0 := test_#t~nondet81;havoc test_#t~nondet81; 877#L991 assume 0 != test_~tmp___2~0; 878#L997-1 assume !(0 != ~pumpRunning~0); 802#L703 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 803#L787 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~6;havoc processEnvironment__wrappee__methaneQuery_~tmp~6; 882#L761-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 911#L735-3 assume !(0 == ~pumpRunning~0); 786#L710 havoc __utac_acc__Specification4_spec__1_#t~ret44, __utac_acc__Specification4_spec__1_#t~ret45, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 891#L656 __utac_acc__Specification4_spec__1_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret44;havoc __utac_acc__Specification4_spec__1_#t~ret44; 926#L558 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 942#L558-1 [2020-11-29 18:51:50,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:51:50,687 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 18:51:50,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:51:50,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091263979] [2020-11-29 18:51:50,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:51:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:51:50,757 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:51:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:51:50,799 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:51:50,825 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:51:50,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:51:50,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1439331005, now seen corresponding path program 1 times [2020-11-29 18:51:50,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:51:50,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264297799] [2020-11-29 18:51:50,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:51:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:51:50,849 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 18:51:50,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264297799] [2020-11-29 18:51:50,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:51:50,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:51:50,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065885517] [2020-11-29 18:51:50,850 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:51:50,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:51:50,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:51:50,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:51:50,851 INFO L87 Difference]: Start difference. First operand 258 states and 378 transitions. cyclomatic complexity: 123 Second operand 3 states. [2020-11-29 18:51:51,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:51:51,013 INFO L93 Difference]: Finished difference Result 252 states and 346 transitions. [2020-11-29 18:51:51,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:51:51,014 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 252 states and 346 transitions. [2020-11-29 18:51:51,017 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2020-11-29 18:51:51,019 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 252 states to 252 states and 346 transitions. [2020-11-29 18:51:51,020 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 252 [2020-11-29 18:51:51,020 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 252 [2020-11-29 18:51:51,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 252 states and 346 transitions. [2020-11-29 18:51:51,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:51:51,021 INFO L691 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2020-11-29 18:51:51,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states and 346 transitions. [2020-11-29 18:51:51,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-11-29 18:51:51,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-11-29 18:51:51,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 346 transitions. [2020-11-29 18:51:51,033 INFO L714 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2020-11-29 18:51:51,033 INFO L594 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2020-11-29 18:51:51,033 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 18:51:51,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 252 states and 346 transitions. [2020-11-29 18:51:51,058 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2020-11-29 18:51:51,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:51:51,058 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:51:51,059 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:51:51,059 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:51:51,059 INFO L794 eck$LassoCheckResult]: Stem: 1428#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1262#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 1263#L534 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1424#L542 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 1426#L498 assume 0 != main_~tmp~3; 1407#L471 havoc test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1390#L558-1 [2020-11-29 18:51:51,060 INFO L796 eck$LassoCheckResult]: Loop: 1390#L558-1 assume !false; 1481#L962 assume test_~splverifierCounter~0 < 4; 1482#L963 test_~tmp~11 := test_#t~nondet79;havoc test_#t~nondet79; 1484#L971 assume !(0 != test_~tmp~11); 1480#L971-1 test_~tmp___0~3 := test_#t~nondet80;havoc test_#t~nondet80; 1478#L981 assume !(0 != test_~tmp___0~3); 1475#L981-1 test_~tmp___2~0 := test_#t~nondet81;havoc test_#t~nondet81; 1473#L991 assume 0 != test_~tmp___2~0; 1472#L997-1 assume !(0 != ~pumpRunning~0); 1437#L703 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1427#L787 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~6;havoc processEnvironment__wrappee__methaneQuery_~tmp~6; 1284#L761-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1285#L735-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret77, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1381#L664-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1382#L669-3 isHighWaterLevel_#t~ret77 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret77;havoc isHighWaterLevel_#t~ret77; 1375#L906-9 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~1 := 0; 1376#L906-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1325#L912-3 processEnvironment__wrappee__highWaterSensor_#t~ret56 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret56;havoc processEnvironment__wrappee__highWaterSensor_#t~ret56; 1297#L739-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 1282#L710 havoc __utac_acc__Specification4_spec__1_#t~ret44, __utac_acc__Specification4_spec__1_#t~ret45, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 1350#L656 __utac_acc__Specification4_spec__1_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret44;havoc __utac_acc__Specification4_spec__1_#t~ret44; 1351#L558 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 1390#L558-1 [2020-11-29 18:51:51,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:51:51,060 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 18:51:51,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:51:51,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938262840] [2020-11-29 18:51:51,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:51:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:51:51,102 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:51:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:51:51,140 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:51:51,154 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:51:51,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:51:51,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1579572239, now seen corresponding path program 1 times [2020-11-29 18:51:51,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:51:51,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939302836] [2020-11-29 18:51:51,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:51:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:51:51,162 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:51:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:51:51,167 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:51:51,172 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:51:51,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:51:51,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1462089931, now seen corresponding path program 1 times [2020-11-29 18:51:51,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:51:51,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828028956] [2020-11-29 18:51:51,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:51:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:51:51,211 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:51:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:51:51,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:51:51,262 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:51:51,432 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-29 18:52:59,143 WARN L193 SmtUtils]: Spent 1.13 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 18:53:45,279 WARN L193 SmtUtils]: Spent 46.13 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 18:53:45,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:53:45 BoogieIcfgContainer [2020-11-29 18:53:45,423 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:53:45,424 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:53:45,424 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:53:45,424 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:53:45,425 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:51:49" (3/4) ... [2020-11-29 18:53:45,427 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 18:53:45,490 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3ea590a1-2ea6-4d85-a6cf-36f8f149a6f7/bin/uautomizer/witness.graphml [2020-11-29 18:53:45,490 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:53:45,492 INFO L168 Benchmark]: Toolchain (without parser) took 118631.90 ms. Allocated memory was 100.7 MB in the beginning and 167.8 MB in the end (delta: 67.1 MB). Free memory was 71.2 MB in the beginning and 121.1 MB in the end (delta: -49.9 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:53:45,494 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory was 57.7 MB in the beginning and 57.6 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:53:45,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 590.80 ms. Allocated memory is still 100.7 MB. Free memory was 71.2 MB in the beginning and 65.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:53:45,495 INFO L168 Benchmark]: Boogie Procedure Inliner took 141.32 ms. Allocated memory is still 100.7 MB. Free memory was 65.8 MB in the beginning and 60.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:53:45,496 INFO L168 Benchmark]: Boogie Preprocessor took 82.71 ms. Allocated memory is still 100.7 MB. Free memory was 60.1 MB in the beginning and 56.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:53:45,496 INFO L168 Benchmark]: RCFGBuilder took 1490.85 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 56.3 MB in the beginning and 59.0 MB in the end (delta: -2.8 MB). Peak memory consumption was 23.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:53:45,497 INFO L168 Benchmark]: BuchiAutomizer took 116251.53 ms. Allocated memory was 121.6 MB in the beginning and 167.8 MB in the end (delta: 46.1 MB). Free memory was 58.3 MB in the beginning and 123.2 MB in the end (delta: -64.9 MB). Peak memory consumption was 65.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:53:45,497 INFO L168 Benchmark]: Witness Printer took 66.10 ms. Allocated memory is still 167.8 MB. Free memory was 123.2 MB in the beginning and 121.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:53:45,501 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory was 57.7 MB in the beginning and 57.6 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 590.80 ms. Allocated memory is still 100.7 MB. Free memory was 71.2 MB in the beginning and 65.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 141.32 ms. Allocated memory is still 100.7 MB. Free memory was 65.8 MB in the beginning and 60.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.71 ms. Allocated memory is still 100.7 MB. Free memory was 60.1 MB in the beginning and 56.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1490.85 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 56.3 MB in the beginning and 59.0 MB in the end (delta: -2.8 MB). Peak memory consumption was 23.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 116251.53 ms. Allocated memory was 121.6 MB in the beginning and 167.8 MB in the end (delta: 46.1 MB). Free memory was 58.3 MB in the beginning and 123.2 MB in the end (delta: -64.9 MB). Peak memory consumption was 65.8 MB. Max. memory is 16.1 GB. * Witness Printer took 66.10 ms. Allocated memory is still 167.8 MB. Free memory was 123.2 MB in the beginning and 121.1 MB in the end (delta: 2.1 MB). There was no memory consumed. 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 252 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 116.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 115.3s. 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, 213 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 258 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 550 SDtfs, 1755 SDslu, 1211 SDs, 0 SdLazy, 81 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 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: 961]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=15278} State at position 1 is {NULL=0, NULL=0, NULL=15304, NULL=15278, NULL=15301, methaneLevelCritical=0, NULL=0, NULL=15303, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@240d3757=0, tmp___1=0, NULL=15287, NULL=0, NULL=15291, NULL=15292, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28b3f297=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@717a825=0, NULL=0, waterLevel=1, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, tmp=1, NULL=15298, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=0, retValue_acc=0, tmp=1, NULL=0, NULL=0, tmp___0=0, retValue_acc=1, NULL=15305, NULL=15283, tmp=1, NULL=15296, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55ff54c7=0, head=0, NULL=0, NULL=0, NULL=15286, tmp=0, NULL=0, NULL=0, NULL=15302, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b2b13c7=0, NULL=0, NULL=0, retValue_acc=0, NULL=15285, NULL=15300, NULL=15289, tmp___0=0, NULL=0, NULL=0, tmp___0=0, NULL=15290, NULL=15294, NULL=15282, tmp=0, NULL=15306, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53172f0=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fc72bf3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d60313c=64, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74a96ebc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56a0e91f=0, \result=0, NULL=15288, NULL=0, NULL=0, NULL=15280, NULL=15284, \result=0, NULL=15297, NULL=0, NULL=15293, retValue_acc=1, NULL=15279, tmp___2=64, tmp=0, splverifierCounter=0, NULL=0, NULL=15281, NULL=15299, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48db7d20=0, NULL=15295} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L408] int cleanupTimeShifts = 4; [L581] int waterLevel = 1; [L582] int methaneLevelCritical = 0; [L696] int pumpRunning = 0; [L697] int systemActive = 1; [L489] int retValue_acc ; [L490] int tmp ; [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L952] int splverifierCounter ; [L953] int tmp ; [L954] int tmp___0 ; [L955] int tmp___1 ; [L956] int tmp___2 ; [L959] splverifierCounter = 0 Loop: [L961] COND TRUE 1 [L963] COND TRUE splverifierCounter < 4 [L969] tmp = __VERIFIER_nondet_int() [L971] COND FALSE !(\read(tmp)) [L979] tmp___0 = __VERIFIER_nondet_int() [L981] COND FALSE !(\read(tmp___0)) [L989] tmp___2 = __VERIFIER_nondet_int() [L991] COND TRUE \read(tmp___2) [L703] COND FALSE !(\read(pumpRunning)) [L710] COND TRUE \read(systemActive) [L784] int tmp ; [L787] COND FALSE !(\read(pumpRunning)) [L758] int tmp ; [L761] COND FALSE !(\read(pumpRunning)) [L732] int tmp ; [L735] COND TRUE ! pumpRunning [L898] int retValue_acc ; [L899] int tmp ; [L900] int tmp___0 ; [L661] int retValue_acc ; [L664] COND TRUE waterLevel < 2 [L665] retValue_acc = 1 [L666] return (retValue_acc); [L904] tmp = isHighWaterSensorDry() [L906] COND TRUE \read(tmp) [L907] tmp___0 = 0 [L911] retValue_acc = tmp___0 [L912] return (retValue_acc); [L737] tmp = isHighWaterLevel() [L739] COND FALSE !(\read(tmp)) [L551] int tmp ; [L552] int tmp___0 ; [L652] int retValue_acc ; [L655] retValue_acc = waterLevel [L656] return (retValue_acc); [L556] tmp = getWaterLevel() [L558] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...