./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product24.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_56d2af05-e5a4-4383-821c-68115a523b9e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_56d2af05-e5a4-4383-821c-68115a523b9e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_56d2af05-e5a4-4383-821c-68115a523b9e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_56d2af05-e5a4-4383-821c-68115a523b9e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product24.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_56d2af05-e5a4-4383-821c-68115a523b9e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_56d2af05-e5a4-4383-821c-68115a523b9e/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 ed5636201ca86e4c0316e1914010795451711e2b .......................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-30 00:00:31,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:00:31,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:00:31,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:00:31,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:00:31,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:00:31,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:00:31,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:00:31,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:00:31,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:00:31,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:00:31,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:00:31,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:00:31,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:00:31,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:00:31,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:00:31,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:00:31,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:00:31,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:00:31,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:00:31,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:00:31,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:00:31,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:00:31,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:00:31,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:00:31,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:00:31,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:00:31,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:00:31,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:00:31,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:00:31,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:00:31,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:00:31,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:00:31,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:00:31,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:00:31,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:00:31,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:00:31,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:00:31,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:00:31,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:00:31,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:00:31,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_56d2af05-e5a4-4383-821c-68115a523b9e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:00:31,526 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:00:31,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:00:31,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:00:31,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:00:31,532 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:00:31,533 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:00:31,533 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:00:31,533 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:00:31,533 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:00:31,534 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:00:31,535 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:00:31,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:00:31,535 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:00:31,536 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:00:31,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:00:31,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:00:31,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:00:31,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:00:31,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:00:31,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:00:31,537 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:00:31,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:00:31,538 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:00:31,538 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:00:31,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:00:31,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:00:31,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:00:31,539 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:00:31,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:00:31,541 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:00:31,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:00:31,542 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:00:31,543 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:00:31,543 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_56d2af05-e5a4-4383-821c-68115a523b9e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_56d2af05-e5a4-4383-821c-68115a523b9e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed5636201ca86e4c0316e1914010795451711e2b [2020-11-30 00:00:31,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:00:31,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:00:31,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:00:31,861 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:00:31,862 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:00:31,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_56d2af05-e5a4-4383-821c-68115a523b9e/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product24.cil.c [2020-11-30 00:00:31,945 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_56d2af05-e5a4-4383-821c-68115a523b9e/bin/uautomizer/data/944261f68/7e29f76e980d4974b1345d196ecb9153/FLAG64f734e12 [2020-11-30 00:00:32,442 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:00:32,443 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_56d2af05-e5a4-4383-821c-68115a523b9e/sv-benchmarks/c/product-lines/minepump_spec1_product24.cil.c [2020-11-30 00:00:32,467 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_56d2af05-e5a4-4383-821c-68115a523b9e/bin/uautomizer/data/944261f68/7e29f76e980d4974b1345d196ecb9153/FLAG64f734e12 [2020-11-30 00:00:32,748 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_56d2af05-e5a4-4383-821c-68115a523b9e/bin/uautomizer/data/944261f68/7e29f76e980d4974b1345d196ecb9153 [2020-11-30 00:00:32,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:00:32,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:00:32,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:00:32,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:00:32,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:00:32,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:00:32" (1/1) ... [2020-11-30 00:00:32,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@423111c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:32, skipping insertion in model container [2020-11-30 00:00:32,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:00:32" (1/1) ... [2020-11-30 00:00:32,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:00:32,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:00:33,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:00:33,118 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:00:33,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:00:33,245 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:00:33,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33 WrapperNode [2020-11-30 00:00:33,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:00:33,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:00:33,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:00:33,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:00:33,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... [2020-11-30 00:00:33,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... [2020-11-30 00:00:33,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:00:33,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:00:33,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:00:33,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:00:33,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... [2020-11-30 00:00:33,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... [2020-11-30 00:00:33,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... [2020-11-30 00:00:33,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... [2020-11-30 00:00:33,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... [2020-11-30 00:00:33,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... [2020-11-30 00:00:33,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... [2020-11-30 00:00:33,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:00:33,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:00:33,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:00:33,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:00:33,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56d2af05-e5a4-4383-821c-68115a523b9e/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 [2020-11-30 00:00:33,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:00:33,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:00:33,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:00:33,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:00:34,507 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:00:34,510 INFO L298 CfgBuilder]: Removed 168 assume(true) statements. [2020-11-30 00:00:34,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:00:34 BoogieIcfgContainer [2020-11-30 00:00:34,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:00:34,514 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:00:34,514 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:00:34,518 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:00:34,519 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:00:34,519 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:00:32" (1/3) ... [2020-11-30 00:00:34,520 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36e9a5b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:00:34, skipping insertion in model container [2020-11-30 00:00:34,520 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:00:34,521 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:33" (2/3) ... [2020-11-30 00:00:34,522 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36e9a5b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:00:34, skipping insertion in model container [2020-11-30 00:00:34,522 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:00:34,522 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:00:34" (3/3) ... [2020-11-30 00:00:34,525 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product24.cil.c [2020-11-30 00:00:34,583 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:00:34,583 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:00:34,583 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:00:34,584 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:00:34,584 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:00:34,584 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:00:34,584 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:00:34,584 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:00:34,599 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states. [2020-11-30 00:00:34,621 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2020-11-30 00:00:34,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:34,622 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:34,629 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:00:34,630 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:34,630 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:00:34,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states. [2020-11-30 00:00:34,637 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2020-11-30 00:00:34,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:34,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:34,638 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:00:34,638 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:34,642 INFO L794 eck$LassoCheckResult]: Stem: 67#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~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 3#L-1true havoc main_#res;havoc main_#t~ret58, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 44#L939true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 46#L947true main_#t~ret58 := valid_product_#res;main_~tmp~5 := main_#t~ret58;havoc main_#t~ret58; 25#L700true assume 0 != main_~tmp~5; 74#L674true havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 98#L514-1true [2020-11-30 00:00:34,643 INFO L796 eck$LassoCheckResult]: Loop: 98#L514-1true assume !false; 60#L556true assume test_~splverifierCounter~0 < 4; 18#L557true test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 38#L565true assume !(0 != test_~tmp~4); 20#L565-1true test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 79#L575true assume !(0 != test_~tmp___0~1); 66#L575-1true test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 5#L585true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 14#L593-1true assume !(0 != ~pumpRunning~0); 105#L723true assume !(0 != ~systemActive~0); 42#L730true havoc __utac_acc__Specification1_spec__1_#t~ret52, __utac_acc__Specification1_spec__1_#t~ret53, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 8#L458-1true __utac_acc__Specification1_spec__1_#t~ret52 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret52;havoc __utac_acc__Specification1_spec__1_#t~ret52; 93#L514true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 98#L514-1true [2020-11-30 00:00:34,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:34,649 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 00:00:34,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:34,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390605502] [2020-11-30 00:00:34,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:34,888 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:34,969 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:35,045 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:35,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:35,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1670755442, now seen corresponding path program 1 times [2020-11-30 00:00:35,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:35,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129782964] [2020-11-30 00:00:35,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:35,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:00:35,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129782964] [2020-11-30 00:00:35,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:00:35,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:00:35,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123890014] [2020-11-30 00:00:35,126 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:00:35,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:00:35,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:00:35,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:00:35,145 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 3 states. [2020-11-30 00:00:35,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:00:35,233 INFO L93 Difference]: Finished difference Result 202 states and 288 transitions. [2020-11-30 00:00:35,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:00:35,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 202 states and 288 transitions. [2020-11-30 00:00:35,243 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2020-11-30 00:00:35,253 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 202 states to 188 states and 273 transitions. [2020-11-30 00:00:35,254 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 188 [2020-11-30 00:00:35,255 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 188 [2020-11-30 00:00:35,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 188 states and 273 transitions. [2020-11-30 00:00:35,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:00:35,258 INFO L691 BuchiCegarLoop]: Abstraction has 188 states and 273 transitions. [2020-11-30 00:00:35,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states and 273 transitions. [2020-11-30 00:00:35,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 186. [2020-11-30 00:00:35,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-11-30 00:00:35,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 270 transitions. [2020-11-30 00:00:35,318 INFO L714 BuchiCegarLoop]: Abstraction has 186 states and 270 transitions. [2020-11-30 00:00:35,318 INFO L594 BuchiCegarLoop]: Abstraction has 186 states and 270 transitions. [2020-11-30 00:00:35,318 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:00:35,318 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 186 states and 270 transitions. [2020-11-30 00:00:35,329 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 128 [2020-11-30 00:00:35,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:35,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:35,332 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:00:35,332 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:35,332 INFO L794 eck$LassoCheckResult]: Stem: 407#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~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 321#L-1 havoc main_#res;havoc main_#t~ret58, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 322#L939 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 382#L947 main_#t~ret58 := valid_product_#res;main_~tmp~5 := main_#t~ret58;havoc main_#t~ret58; 360#L700 assume 0 != main_~tmp~5; 361#L674 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 379#L514-1 [2020-11-30 00:00:35,333 INFO L796 eck$LassoCheckResult]: Loop: 379#L514-1 assume !false; 397#L556 assume test_~splverifierCounter~0 < 4; 347#L557 test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 348#L565 assume !(0 != test_~tmp~4); 351#L565-1 test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 352#L575 assume !(0 != test_~tmp___0~1); 406#L575-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 323#L585 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 324#L593-1 assume !(0 != ~pumpRunning~0); 423#L723 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 418#L781 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret59, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 357#L755-1 assume !(0 != ~pumpRunning~0); 354#L730 havoc __utac_acc__Specification1_spec__1_#t~ret52, __utac_acc__Specification1_spec__1_#t~ret53, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 328#L458-1 __utac_acc__Specification1_spec__1_#t~ret52 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret52;havoc __utac_acc__Specification1_spec__1_#t~ret52; 329#L514 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 379#L514-1 [2020-11-30 00:00:35,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:35,343 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 00:00:35,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:35,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347210385] [2020-11-30 00:00:35,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:35,445 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:35,539 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:35,570 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:35,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:35,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1427585824, now seen corresponding path program 1 times [2020-11-30 00:00:35,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:35,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197696337] [2020-11-30 00:00:35,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:35,580 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:35,585 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:35,589 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:35,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:35,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1021999226, now seen corresponding path program 1 times [2020-11-30 00:00:35,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:35,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614705592] [2020-11-30 00:00:35,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:35,706 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:35,783 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:35,798 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:01:43,404 WARN L193 SmtUtils]: Spent 1.12 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 00:02:28,937 WARN L193 SmtUtils]: Spent 45.53 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 00:02:29,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:02:29 BoogieIcfgContainer [2020-11-30 00:02:29,148 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:02:29,149 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:02:29,149 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:02:29,149 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:02:29,150 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:00:34" (3/4) ... [2020-11-30 00:02:29,152 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:02:29,196 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_56d2af05-e5a4-4383-821c-68115a523b9e/bin/uautomizer/witness.graphml [2020-11-30 00:02:29,196 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:02:29,198 INFO L168 Benchmark]: Toolchain (without parser) took 116445.41 ms. Allocated memory was 83.9 MB in the beginning and 132.1 MB in the end (delta: 48.2 MB). Free memory was 57.6 MB in the beginning and 90.2 MB in the end (delta: -32.6 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:02:29,198 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 83.9 MB. Free memory is still 41.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:02:29,199 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.25 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 57.3 MB in the beginning and 68.9 MB in the end (delta: -11.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:02:29,200 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.29 ms. Allocated memory is still 100.7 MB. Free memory was 68.9 MB in the beginning and 65.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:02:29,200 INFO L168 Benchmark]: Boogie Preprocessor took 79.85 ms. Allocated memory is still 100.7 MB. Free memory was 65.1 MB in the beginning and 62.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:02:29,201 INFO L168 Benchmark]: RCFGBuilder took 1104.13 ms. Allocated memory is still 100.7 MB. Free memory was 62.6 MB in the beginning and 65.8 MB in the end (delta: -3.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:02:29,201 INFO L168 Benchmark]: BuchiAutomizer took 114634.17 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 65.8 MB in the beginning and 92.3 MB in the end (delta: -26.5 MB). Peak memory consumption was 71.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:02:29,202 INFO L168 Benchmark]: Witness Printer took 47.56 ms. Allocated memory is still 132.1 MB. Free memory was 92.3 MB in the beginning and 90.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:02:29,205 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 83.9 MB. Free memory is still 41.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 491.25 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 57.3 MB in the beginning and 68.9 MB in the end (delta: -11.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.29 ms. Allocated memory is still 100.7 MB. Free memory was 68.9 MB in the beginning and 65.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.85 ms. Allocated memory is still 100.7 MB. Free memory was 65.1 MB in the beginning and 62.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1104.13 ms. Allocated memory is still 100.7 MB. Free memory was 62.6 MB in the beginning and 65.8 MB in the end (delta: -3.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 114634.17 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 65.8 MB in the beginning and 92.3 MB in the end (delta: -26.5 MB). Peak memory consumption was 71.9 MB. Max. memory is 16.1 GB. * Witness Printer took 47.56 ms. Allocated memory is still 132.1 MB. Free memory was 92.3 MB in the beginning and 90.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 186 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 114.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 114.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 186 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 146 SDtfs, 142 SDslu, 134 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 555]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=20186} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=20186, NULL=20187, NULL=0, retValue_acc=0, NULL=20206, NULL=20190, NULL=0, NULL=20199, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@472fc0fa=0, methaneLevelCritical=0, NULL=20202, retValue_acc=1, NULL=0, tmp=0, NULL=0, NULL=0, tmp=0, tmp___1=0, NULL=20200, NULL=0, NULL=0, tmp___0=0, NULL=20194, NULL=20191, NULL=20209, cleanupTimeShifts=4, NULL=20193, NULL=20203, NULL=20196, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=20192, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d331404=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a83aa2a=0, NULL=0, NULL=0, retValue_acc=0, NULL=20188, NULL=20214, \result=1, head=0, pumpRunning=0, NULL=20195, \result=0, NULL=0, NULL=0, tmp=0, NULL=0, NULL=0, tmp=1, NULL=20213, NULL=20211, NULL=0, NULL=0, NULL=20212, NULL=0, NULL=20207, tmp___2=70, NULL=0, NULL=20201, tmp___0=0, NULL=20198, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4451d7a3=0, NULL=0, \result=0, NULL=20210, NULL=20204, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4785b312=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f48844d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@364a5532=70, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73ffd66d=0, head=0, NULL=0, NULL=0, NULL=20197, tmp=0, NULL=0, NULL=0, NULL=20208, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@557cba62=0, NULL=20205, NULL=20189} - 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; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L614] int cleanupTimeShifts = 4; [L716] int pumpRunning = 0; [L717] int systemActive = 1; [L691] int retValue_acc ; [L692] int tmp ; [L943] int retValue_acc ; [L946] retValue_acc = 1 [L947] return (retValue_acc); [L698] tmp = valid_product() [L700] COND TRUE \read(tmp) [L546] int splverifierCounter ; [L547] int tmp ; [L548] int tmp___0 ; [L549] int tmp___1 ; [L550] int tmp___2 ; [L553] splverifierCounter = 0 Loop: [L555] COND TRUE 1 [L557] COND TRUE splverifierCounter < 4 [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) [L912] systemActive = 1 [L723] COND FALSE !(\read(pumpRunning)) [L730] COND TRUE \read(systemActive) [L778] int tmp ; [L781] COND FALSE !(\read(pumpRunning)) [L752] int tmp ; [L755] COND FALSE !(\read(pumpRunning)) [L507] int tmp ; [L508] int tmp___0 ; [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); [L512] tmp = isMethaneLevelCritical() [L514] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...