./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product03.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_5b7928fd-e69a-407a-926e-e1f72a1b1162/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5b7928fd-e69a-407a-926e-e1f72a1b1162/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5b7928fd-e69a-407a-926e-e1f72a1b1162/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5b7928fd-e69a-407a-926e-e1f72a1b1162/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5b7928fd-e69a-407a-926e-e1f72a1b1162/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5b7928fd-e69a-407a-926e-e1f72a1b1162/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 274cb202d29433d0217a25907d4511df826f0eca .................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:51:26,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:51:26,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:51:26,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:51:26,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:51:26,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:51:26,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:51:26,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:51:26,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:51:26,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:51:26,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:51:26,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:51:26,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:51:26,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:51:26,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:51:26,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:51:26,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:51:26,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:51:26,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:51:26,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:51:26,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:51:26,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:51:26,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:51:26,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:51:26,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:51:26,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:51:26,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:51:26,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:51:26,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:51:26,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:51:26,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:51:26,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:51:26,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:51:26,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:51:26,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:51:26,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:51:26,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:51:26,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:51:26,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:51:26,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:51:26,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:51:26,450 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5b7928fd-e69a-407a-926e-e1f72a1b1162/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:51:26,477 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:51:26,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:51:26,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:51:26,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:51:26,480 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:51:26,480 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:51:26,480 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:51:26,480 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:51:26,481 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:51:26,481 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:51:26,481 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:51:26,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:51:26,482 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:51:26,482 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:51:26,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:51:26,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:51:26,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:51:26,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:51:26,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:51:26,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:51:26,484 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:51:26,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:51:26,484 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:51:26,484 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:51:26,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:51:26,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:51:26,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:51:26,485 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:51:26,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:51:26,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:51:26,486 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:51:26,486 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:51:26,487 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:51:26,488 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_5b7928fd-e69a-407a-926e-e1f72a1b1162/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5b7928fd-e69a-407a-926e-e1f72a1b1162/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 274cb202d29433d0217a25907d4511df826f0eca [2020-11-29 19:51:26,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:51:26,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:51:26,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:51:26,793 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:51:26,794 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:51:26,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5b7928fd-e69a-407a-926e-e1f72a1b1162/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c [2020-11-29 19:51:26,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b7928fd-e69a-407a-926e-e1f72a1b1162/bin/uautomizer/data/7ef1545a5/c66826a7141243fca43eb5b6c67b08d9/FLAG3b43b444f [2020-11-29 19:51:27,509 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:51:27,509 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5b7928fd-e69a-407a-926e-e1f72a1b1162/sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c [2020-11-29 19:51:27,530 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b7928fd-e69a-407a-926e-e1f72a1b1162/bin/uautomizer/data/7ef1545a5/c66826a7141243fca43eb5b6c67b08d9/FLAG3b43b444f [2020-11-29 19:51:27,806 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5b7928fd-e69a-407a-926e-e1f72a1b1162/bin/uautomizer/data/7ef1545a5/c66826a7141243fca43eb5b6c67b08d9 [2020-11-29 19:51:27,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:51:27,811 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:51:27,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:51:27,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:51:27,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:51:27,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:51:27" (1/1) ... [2020-11-29 19:51:27,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@604422c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:27, skipping insertion in model container [2020-11-29 19:51:27,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:51:27" (1/1) ... [2020-11-29 19:51:27,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:51:27,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:51:28,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:51:28,464 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:51:28,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:51:28,627 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:51:28,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:28 WrapperNode [2020-11-29 19:51:28,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:51:28,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:51:28,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:51:28,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:51:28,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:28" (1/1) ... [2020-11-29 19:51:28,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:28" (1/1) ... [2020-11-29 19:51:28,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:51:28,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:51:28,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:51:28,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:51:28,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:28" (1/1) ... [2020-11-29 19:51:28,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:28" (1/1) ... [2020-11-29 19:51:28,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:28" (1/1) ... [2020-11-29 19:51:28,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:28" (1/1) ... [2020-11-29 19:51:28,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:28" (1/1) ... [2020-11-29 19:51:28,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:28" (1/1) ... [2020-11-29 19:51:28,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:28" (1/1) ... [2020-11-29 19:51:28,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:51:28,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:51:28,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:51:28,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:51:28,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b7928fd-e69a-407a-926e-e1f72a1b1162/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:51:28,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:51:28,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:51:28,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:51:28,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:51:29,749 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:51:29,750 INFO L298 CfgBuilder]: Removed 82 assume(true) statements. [2020-11-29 19:51:29,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:51:29 BoogieIcfgContainer [2020-11-29 19:51:29,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:51:29,753 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:51:29,753 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:51:29,761 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:51:29,762 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:51:29,763 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:51:27" (1/3) ... [2020-11-29 19:51:29,764 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@462ab2fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:51:29, skipping insertion in model container [2020-11-29 19:51:29,765 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:51:29,765 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:28" (2/3) ... [2020-11-29 19:51:29,765 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@462ab2fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:51:29, skipping insertion in model container [2020-11-29 19:51:29,766 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:51:29,766 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:51:29" (3/3) ... [2020-11-29 19:51:29,770 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product03.cil.c [2020-11-29 19:51:29,831 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:51:29,831 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:51:29,831 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:51:29,832 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:51:29,832 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:51:29,833 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:51:29,833 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:51:29,833 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:51:29,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states. [2020-11-29 19:51:29,886 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2020-11-29 19:51:29,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:51:29,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:51:29,895 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:51:29,895 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:51:29,895 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:51:29,896 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states. [2020-11-29 19:51:29,913 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2020-11-29 19:51:29,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:51:29,914 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:51:29,916 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:51:29,916 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:51:29,931 INFO L794 eck$LassoCheckResult]: Stem: 31#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #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(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 5#L-1true havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~7, main_~tmp~5;havoc main_~retValue_acc~7;havoc main_~tmp~5; 66#L635true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 4#L643true main_#t~ret67 := valid_product_#res;main_~tmp~5 := main_#t~ret67;havoc main_#t~ret67; 65#L774true assume 0 != main_~tmp~5; 61#L751true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 26#L673-1true [2020-11-29 19:51:29,932 INFO L796 eck$LassoCheckResult]: Loop: 26#L673-1true assume !false; 3#L58true assume test_~splverifierCounter~0 < 4; 19#L59true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 60#L67true assume !(0 != test_~tmp~0); 57#L67-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 35#L77true assume !(0 != test_~tmp___0~0); 34#L77-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 13#L87true assume 0 != test_~tmp___2~0; 44#L93-1true assume !(0 != ~pumpRunning~0); 56#L129true assume !(0 != ~systemActive~0); 25#L136true havoc __utac_acc__Specification3_spec__1_#t~ret64, __utac_acc__Specification3_spec__1_#t~ret65, __utac_acc__Specification3_spec__1_#t~ret66, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 53#L831true __utac_acc__Specification3_spec__1_#t~ret64 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret64;havoc __utac_acc__Specification3_spec__1_#t~ret64; 59#L667true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 26#L673-1true [2020-11-29 19:51:29,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:29,940 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 19:51:29,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:29,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159920819] [2020-11-29 19:51:29,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:30,339 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:30,517 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:30,558 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:51:30,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:30,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1673895426, now seen corresponding path program 1 times [2020-11-29 19:51:30,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:30,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469638778] [2020-11-29 19:51:30,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:30,568 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:30,573 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:30,579 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:51:30,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:30,581 INFO L82 PathProgramCache]: Analyzing trace with hash 40383512, now seen corresponding path program 1 times [2020-11-29 19:51:30,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:30,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370808088] [2020-11-29 19:51:30,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:51:30,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:51:30,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370808088] [2020-11-29 19:51:30,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:51:30,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:51:30,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696682553] [2020-11-29 19:51:30,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:51:30,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:51:30,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:51:30,853 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 6 states. [2020-11-29 19:51:31,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:51:31,209 INFO L93 Difference]: Finished difference Result 174 states and 237 transitions. [2020-11-29 19:51:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:51:31,212 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 174 states and 237 transitions. [2020-11-29 19:51:31,219 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 109 [2020-11-29 19:51:31,226 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 174 states to 153 states and 216 transitions. [2020-11-29 19:51:31,227 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 153 [2020-11-29 19:51:31,229 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 153 [2020-11-29 19:51:31,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 153 states and 216 transitions. [2020-11-29 19:51:31,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:51:31,231 INFO L691 BuchiCegarLoop]: Abstraction has 153 states and 216 transitions. [2020-11-29 19:51:31,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states and 216 transitions. [2020-11-29 19:51:31,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 102. [2020-11-29 19:51:31,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-29 19:51:31,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions. [2020-11-29 19:51:31,279 INFO L714 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2020-11-29 19:51:31,279 INFO L594 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2020-11-29 19:51:31,279 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:51:31,279 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states and 144 transitions. [2020-11-29 19:51:31,281 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 72 [2020-11-29 19:51:31,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:51:31,282 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:51:31,283 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:51:31,283 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:51:31,283 INFO L794 eck$LassoCheckResult]: Stem: 294#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #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(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 262#L-1 havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~7, main_~tmp~5;havoc main_~retValue_acc~7;havoc main_~tmp~5; 263#L635 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 260#L643 main_#t~ret67 := valid_product_#res;main_~tmp~5 := main_#t~ret67;havoc main_#t~ret67; 261#L774 assume 0 != main_~tmp~5; 312#L751 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 286#L673-1 [2020-11-29 19:51:31,284 INFO L796 eck$LassoCheckResult]: Loop: 286#L673-1 assume !false; 257#L58 assume test_~splverifierCounter~0 < 4; 258#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 278#L67 assume !(0 != test_~tmp~0); 310#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 298#L77 assume !(0 != test_~tmp___0~0); 297#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 274#L87 assume 0 != test_~tmp___2~0; 275#L93-1 assume !(0 != ~pumpRunning~0); 302#L129 assume 0 != ~systemActive~0; 289#L136 havoc __utac_acc__Specification3_spec__1_#t~ret64, __utac_acc__Specification3_spec__1_#t~ret65, __utac_acc__Specification3_spec__1_#t~ret66, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 290#L831 __utac_acc__Specification3_spec__1_#t~ret64 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret64;havoc __utac_acc__Specification3_spec__1_#t~ret64; 308#L667 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 286#L673-1 [2020-11-29 19:51:31,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:31,284 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 19:51:31,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:31,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267165541] [2020-11-29 19:51:31,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:31,368 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:31,446 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:31,481 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:51:31,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:31,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1673984799, now seen corresponding path program 1 times [2020-11-29 19:51:31,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:31,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371666950] [2020-11-29 19:51:31,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:31,497 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:31,507 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:31,513 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:51:31,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:31,515 INFO L82 PathProgramCache]: Analyzing trace with hash 40294139, now seen corresponding path program 1 times [2020-11-29 19:51:31,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:31,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367186194] [2020-11-29 19:51:31,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:51:31,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:51:31,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367186194] [2020-11-29 19:51:31,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:51:31,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:51:31,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984393024] [2020-11-29 19:51:31,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:51:31,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:51:31,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:51:31,700 INFO L87 Difference]: Start difference. First operand 102 states and 144 transitions. cyclomatic complexity: 45 Second operand 5 states. [2020-11-29 19:51:31,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:51:31,839 INFO L93 Difference]: Finished difference Result 319 states and 461 transitions. [2020-11-29 19:51:31,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 19:51:31,840 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 461 transitions. [2020-11-29 19:51:31,847 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 240 [2020-11-29 19:51:31,860 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 319 states and 461 transitions. [2020-11-29 19:51:31,861 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 319 [2020-11-29 19:51:31,862 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 319 [2020-11-29 19:51:31,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 319 states and 461 transitions. [2020-11-29 19:51:31,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:51:31,868 INFO L691 BuchiCegarLoop]: Abstraction has 319 states and 461 transitions. [2020-11-29 19:51:31,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states and 461 transitions. [2020-11-29 19:51:31,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 198. [2020-11-29 19:51:31,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-11-29 19:51:31,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 274 transitions. [2020-11-29 19:51:31,888 INFO L714 BuchiCegarLoop]: Abstraction has 198 states and 274 transitions. [2020-11-29 19:51:31,888 INFO L594 BuchiCegarLoop]: Abstraction has 198 states and 274 transitions. [2020-11-29 19:51:31,888 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:51:31,888 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 198 states and 274 transitions. [2020-11-29 19:51:31,890 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 144 [2020-11-29 19:51:31,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:51:31,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:51:31,891 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:51:31,892 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:51:31,892 INFO L794 eck$LassoCheckResult]: Stem: 738#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #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(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 703#L-1 havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~7, main_~tmp~5;havoc main_~retValue_acc~7;havoc main_~tmp~5; 704#L635 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 699#L643 main_#t~ret67 := valid_product_#res;main_~tmp~5 := main_#t~ret67;havoc main_#t~ret67; 700#L774 assume 0 != main_~tmp~5; 769#L751 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 731#L673-1 [2020-11-29 19:51:31,892 INFO L796 eck$LassoCheckResult]: Loop: 731#L673-1 assume !false; 696#L58 assume test_~splverifierCounter~0 < 4; 697#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 718#L67 assume !(0 != test_~tmp~0); 767#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 744#L77 assume !(0 != test_~tmp___0~0); 743#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 714#L87 assume 0 != test_~tmp___2~0; 715#L93-1 assume !(0 != ~pumpRunning~0); 748#L129 assume 0 != ~systemActive~0; 766#L136 havoc __utac_acc__Specification3_spec__1_#t~ret64, __utac_acc__Specification3_spec__1_#t~ret65, __utac_acc__Specification3_spec__1_#t~ret66, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 862#L831 __utac_acc__Specification3_spec__1_#t~ret64 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret64;havoc __utac_acc__Specification3_spec__1_#t~ret64; 861#L667 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 860#L863 __utac_acc__Specification3_spec__1_#t~ret65 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~1 := __utac_acc__Specification3_spec__1_#t~ret65;havoc __utac_acc__Specification3_spec__1_#t~ret65; 859#L673 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~1); 731#L673-1 [2020-11-29 19:51:31,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:31,893 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 19:51:31,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:31,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837011359] [2020-11-29 19:51:31,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:31,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:31,988 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:32,000 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:51:32,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:32,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1913349525, now seen corresponding path program 1 times [2020-11-29 19:51:32,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:32,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141771577] [2020-11-29 19:51:32,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:32,006 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:32,009 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:32,013 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:51:32,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:32,014 INFO L82 PathProgramCache]: Analyzing trace with hash 67967279, now seen corresponding path program 1 times [2020-11-29 19:51:32,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:32,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73304078] [2020-11-29 19:51:32,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:32,077 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:32,133 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:32,153 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:51:32,356 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-11-29 19:53:05,149 WARN L193 SmtUtils]: Spent 1.55 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 19:54:07,547 WARN L193 SmtUtils]: Spent 1.04 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 19:54:07,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:54:07 BoogieIcfgContainer [2020-11-29 19:54:07,858 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:54:07,858 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:54:07,858 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:54:07,859 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:54:07,859 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:51:29" (3/4) ... [2020-11-29 19:54:07,862 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:54:07,972 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5b7928fd-e69a-407a-926e-e1f72a1b1162/bin/uautomizer/witness.graphml [2020-11-29 19:54:07,972 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:54:07,981 INFO L168 Benchmark]: Toolchain (without parser) took 160169.71 ms. Allocated memory was 107.0 MB in the beginning and 169.9 MB in the end (delta: 62.9 MB). Free memory was 78.9 MB in the beginning and 82.0 MB in the end (delta: -3.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:54:07,982 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 107.0 MB. Free memory was 65.8 MB in the beginning and 65.8 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:54:07,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 789.73 ms. Allocated memory was 107.0 MB in the beginning and 140.5 MB in the end (delta: 33.6 MB). Free memory was 78.7 MB in the beginning and 106.5 MB in the end (delta: -27.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:54:07,983 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.66 ms. Allocated memory is still 140.5 MB. Free memory was 106.5 MB in the beginning and 103.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:54:07,983 INFO L168 Benchmark]: Boogie Preprocessor took 39.77 ms. Allocated memory is still 140.5 MB. Free memory was 103.8 MB in the beginning and 102.1 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:54:07,984 INFO L168 Benchmark]: RCFGBuilder took 1001.01 ms. Allocated memory is still 140.5 MB. Free memory was 101.7 MB in the beginning and 96.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:54:07,986 INFO L168 Benchmark]: BuchiAutomizer took 158104.60 ms. Allocated memory was 140.5 MB in the beginning and 169.9 MB in the end (delta: 29.4 MB). Free memory was 96.6 MB in the beginning and 84.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 84.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:54:07,991 INFO L168 Benchmark]: Witness Printer took 121.25 ms. Allocated memory is still 169.9 MB. Free memory was 84.1 MB in the beginning and 82.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:54:07,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 107.0 MB. Free memory was 65.8 MB in the beginning and 65.8 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 789.73 ms. Allocated memory was 107.0 MB in the beginning and 140.5 MB in the end (delta: 33.6 MB). Free memory was 78.7 MB in the beginning and 106.5 MB in the end (delta: -27.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.66 ms. Allocated memory is still 140.5 MB. Free memory was 106.5 MB in the beginning and 103.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.77 ms. Allocated memory is still 140.5 MB. Free memory was 103.8 MB in the beginning and 102.1 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1001.01 ms. Allocated memory is still 140.5 MB. Free memory was 101.7 MB in the beginning and 96.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 158104.60 ms. Allocated memory was 140.5 MB in the beginning and 169.9 MB in the end (delta: 29.4 MB). Free memory was 96.6 MB in the beginning and 84.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 84.8 MB. Max. memory is 16.1 GB. * Witness Printer took 121.25 ms. Allocated memory is still 169.9 MB. Free memory was 84.1 MB in the beginning and 82.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 198 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 157.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 157.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 172 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 198 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 183 SDtfs, 567 SDslu, 697 SDs, 0 SdLazy, 82 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 57]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=23911} State at position 1 is {NULL=23932, NULL=0, NULL=0, NULL=23916, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1340584f=69, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d458d6e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d8e1548=0, NULL=23911, NULL=23930, NULL=23915, NULL=0, retValue_acc=0, NULL=23920, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13c6d1a1=0, NULL=23919, methaneLevelCritical=0, NULL=0, tmp___1=0, NULL=23934, NULL=0, NULL=0, cleanupTimeShifts=4, tmp=0, NULL=23928, tmp=0, NULL=23933, NULL=23929, tmp___0=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=23914, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b6fcc17=0, NULL=23927, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@599bdb2=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b4282ca=0, NULL=0, NULL=23924, tmp___0=0, NULL=0, NULL=23918, NULL=0, NULL=0, NULL=0, NULL=0, NULL=23931, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f67ebb7=0, \result=1, head=0, pumpRunning=0, NULL=23936, NULL=23935, \result=0, NULL=23921, NULL=0, NULL=0, NULL=0, tmp=1, NULL=0, NULL=23938, retValue_acc=1, NULL=0, NULL=0, NULL=23912, NULL=0, retValue_acc=1, NULL=23923, tmp___2=69, NULL=0, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=23917, NULL=23922, NULL=23913, tmp___1=0, head=0, NULL=23937, NULL=23926, NULL=0, NULL=23925, NULL=0, NULL=23939} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L121] int pumpRunning = 0; [L122] int systemActive = 1; [L413] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L692] int cleanupTimeShifts = 4; [L788] int waterLevel = 1; [L789] int methaneLevelCritical = 0; [L765] int retValue_acc ; [L766] int tmp ; [L639] int retValue_acc ; [L642] retValue_acc = 1 [L643] return (retValue_acc); [L772] tmp = valid_product() [L774] COND TRUE \read(tmp) [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 Loop: [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L129] COND FALSE !(\read(pumpRunning)) [L136] COND TRUE \read(systemActive) [L659] int tmp ; [L660] int tmp___0 ; [L661] int tmp___1 ; [L827] int retValue_acc ; [L830] retValue_acc = methaneLevelCritical [L831] return (retValue_acc); [L665] tmp = isMethaneLevelCritical() [L667] COND FALSE !(\read(tmp)) [L859] int retValue_acc ; [L862] retValue_acc = waterLevel [L863] return (retValue_acc); [L671] tmp___0 = getWaterLevel() [L673] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...