./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product58.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_3c2ca9ca-8f02-4c99-8a3d-44003564941b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3c2ca9ca-8f02-4c99-8a3d-44003564941b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3c2ca9ca-8f02-4c99-8a3d-44003564941b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3c2ca9ca-8f02-4c99-8a3d-44003564941b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3c2ca9ca-8f02-4c99-8a3d-44003564941b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3c2ca9ca-8f02-4c99-8a3d-44003564941b/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 f34e156823368e08bfaeac3b7f4488efc17d7ca6 ............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:38:26,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:38:26,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:38:26,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:38:26,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:38:26,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:38:26,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:38:26,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:38:26,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:38:26,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:38:26,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:38:26,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:38:26,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:38:26,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:38:26,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:38:26,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:38:26,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:38:26,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:38:26,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:38:26,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:38:26,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:38:26,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:38:26,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:38:26,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:38:26,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:38:26,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:38:26,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:38:26,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:38:26,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:38:26,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:38:26,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:38:26,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:38:26,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:38:26,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:38:26,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:38:26,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:38:26,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:38:26,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:38:26,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:38:26,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:38:26,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:38:26,416 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3c2ca9ca-8f02-4c99-8a3d-44003564941b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 21:38:26,457 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:38:26,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:38:26,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:38:26,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:38:26,459 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:38:26,460 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 21:38:26,460 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 21:38:26,460 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 21:38:26,460 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 21:38:26,461 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 21:38:26,461 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 21:38:26,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:38:26,461 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:38:26,462 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 21:38:26,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:38:26,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:38:26,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:38:26,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 21:38:26,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 21:38:26,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 21:38:26,463 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:38:26,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:38:26,464 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 21:38:26,464 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:38:26,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 21:38:26,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:38:26,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:38:26,465 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 21:38:26,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:38:26,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:38:26,466 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:38:26,466 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 21:38:26,467 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 21:38:26,467 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_3c2ca9ca-8f02-4c99-8a3d-44003564941b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3c2ca9ca-8f02-4c99-8a3d-44003564941b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f34e156823368e08bfaeac3b7f4488efc17d7ca6 [2020-11-29 21:38:26,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:38:26,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:38:26,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:38:26,794 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:38:26,795 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:38:26,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3c2ca9ca-8f02-4c99-8a3d-44003564941b/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2020-11-29 21:38:26,894 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c2ca9ca-8f02-4c99-8a3d-44003564941b/bin/uautomizer/data/9985053cf/aae9b04430114f4fb8b7aac7ebb91af8/FLAGa8b55d465 [2020-11-29 21:38:27,454 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:38:27,455 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3c2ca9ca-8f02-4c99-8a3d-44003564941b/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2020-11-29 21:38:27,468 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c2ca9ca-8f02-4c99-8a3d-44003564941b/bin/uautomizer/data/9985053cf/aae9b04430114f4fb8b7aac7ebb91af8/FLAGa8b55d465 [2020-11-29 21:38:27,739 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3c2ca9ca-8f02-4c99-8a3d-44003564941b/bin/uautomizer/data/9985053cf/aae9b04430114f4fb8b7aac7ebb91af8 [2020-11-29 21:38:27,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:38:27,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:38:27,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:38:27,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:38:27,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:38:27,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:38:27" (1/1) ... [2020-11-29 21:38:27,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55b193cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:38:27, skipping insertion in model container [2020-11-29 21:38:27,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:38:27" (1/1) ... [2020-11-29 21:38:27,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:38:27,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:38:28,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:38:28,148 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:38:28,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:38:28,303 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:38:28,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:38:28 WrapperNode [2020-11-29 21:38:28,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:38:28,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:38:28,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:38:28,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:38:28,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:38:28" (1/1) ... [2020-11-29 21:38:28,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:38:28" (1/1) ... [2020-11-29 21:38:28,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:38:28,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:38:28,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:38:28,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:38:28,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:38:28" (1/1) ... [2020-11-29 21:38:28,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:38:28" (1/1) ... [2020-11-29 21:38:28,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:38:28" (1/1) ... [2020-11-29 21:38:28,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:38:28" (1/1) ... [2020-11-29 21:38:28,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:38:28" (1/1) ... [2020-11-29 21:38:28,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:38:28" (1/1) ... [2020-11-29 21:38:28,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:38:28" (1/1) ... [2020-11-29 21:38:28,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:38:28,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:38:28,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:38:28,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:38:28,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:38:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c2ca9ca-8f02-4c99-8a3d-44003564941b/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 21:38:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:38:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:38:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:38:28,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:38:29,691 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:38:29,691 INFO L298 CfgBuilder]: Removed 200 assume(true) statements. [2020-11-29 21:38:29,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:38:29 BoogieIcfgContainer [2020-11-29 21:38:29,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:38:29,699 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 21:38:29,700 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 21:38:29,703 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 21:38:29,704 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:38:29,704 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 09:38:27" (1/3) ... [2020-11-29 21:38:29,706 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2080aebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 09:38:29, skipping insertion in model container [2020-11-29 21:38:29,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:38:29,706 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:38:28" (2/3) ... [2020-11-29 21:38:29,707 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2080aebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 09:38:29, skipping insertion in model container [2020-11-29 21:38:29,707 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:38:29,707 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:38:29" (3/3) ... [2020-11-29 21:38:29,722 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2020-11-29 21:38:29,776 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 21:38:29,776 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 21:38:29,776 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 21:38:29,776 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:38:29,776 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:38:29,777 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 21:38:29,777 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:38:29,777 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 21:38:29,791 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states. [2020-11-29 21:38:29,816 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2020-11-29 21:38:29,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:38:29,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:38:29,824 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:38:29,825 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:38:29,825 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 21:38:29,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states. [2020-11-29 21:38:29,833 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2020-11-29 21:38:29,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:38:29,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:38:29,835 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:38:29,835 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:38:29,840 INFO L794 eck$LassoCheckResult]: Stem: 107#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~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.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; 5#L-1true havoc main_#res;havoc main_#t~ret54, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 79#L680true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 114#L688true main_#t~ret54 := valid_product_#res;main_~tmp~4 := main_#t~ret54;havoc main_#t~ret54; 93#L644true assume 0 != main_~tmp~4; 55#L617true havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 41#L419-1true [2020-11-29 21:38:29,841 INFO L796 eck$LassoCheckResult]: Loop: 41#L419-1true assume !false; 118#L930true assume test_~splverifierCounter~0 < 4; 35#L931true test_~tmp~10 := test_#t~nondet78;havoc test_#t~nondet78; 70#L939true assume !(0 != test_~tmp~10); 72#L939-1true test_~tmp___0~3 := test_#t~nondet79;havoc test_#t~nondet79; 134#L949true assume !(0 != test_~tmp___0~3); 119#L949-1true test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 24#L959true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 32#L967-2true assume !(0 != ~pumpRunning~0); 25#L703true assume !(0 != ~systemActive~0); 112#L710true havoc __utac_acc__Specification4_spec__1_#t~ret42, __utac_acc__Specification4_spec__1_#t~ret43, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 125#L528true __utac_acc__Specification4_spec__1_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret42;havoc __utac_acc__Specification4_spec__1_#t~ret42; 36#L419true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 41#L419-1true [2020-11-29 21:38:29,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:29,847 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 21:38:29,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:29,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235432927] [2020-11-29 21:38:29,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:30,158 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:30,286 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:30,346 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:38:30,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:30,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1678143611, now seen corresponding path program 1 times [2020-11-29 21:38:30,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:30,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223021816] [2020-11-29 21:38:30,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:38:30,419 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 21:38:30,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223021816] [2020-11-29 21:38:30,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:38:30,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:38:30,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349620955] [2020-11-29 21:38:30,428 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 21:38:30,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:38:30,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:38:30,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:38:30,448 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 3 states. [2020-11-29 21:38:30,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:38:30,507 INFO L93 Difference]: Finished difference Result 132 states and 188 transitions. [2020-11-29 21:38:30,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:38:30,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 188 transitions. [2020-11-29 21:38:30,515 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-11-29 21:38:30,526 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 125 states and 180 transitions. [2020-11-29 21:38:30,541 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2020-11-29 21:38:30,541 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2020-11-29 21:38:30,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 180 transitions. [2020-11-29 21:38:30,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:38:30,543 INFO L691 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2020-11-29 21:38:30,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 180 transitions. [2020-11-29 21:38:30,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-29 21:38:30,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-29 21:38:30,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 180 transitions. [2020-11-29 21:38:30,585 INFO L714 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2020-11-29 21:38:30,585 INFO L594 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2020-11-29 21:38:30,585 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 21:38:30,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 180 transitions. [2020-11-29 21:38:30,594 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-11-29 21:38:30,594 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:38:30,594 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:38:30,596 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:38:30,596 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:38:30,596 INFO L794 eck$LassoCheckResult]: Stem: 394#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~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.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; 280#L-1 havoc main_#res;havoc main_#t~ret54, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 281#L680 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 377#L688 main_#t~ret54 := valid_product_#res;main_~tmp~4 := main_#t~ret54;havoc main_#t~ret54; 385#L644 assume 0 != main_~tmp~4; 354#L617 havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 338#L419-1 [2020-11-29 21:38:30,597 INFO L796 eck$LassoCheckResult]: Loop: 338#L419-1 assume !false; 341#L930 assume test_~splverifierCounter~0 < 4; 335#L931 test_~tmp~10 := test_#t~nondet78;havoc test_#t~nondet78; 336#L939 assume !(0 != test_~tmp~10); 368#L939-1 test_~tmp___0~3 := test_#t~nondet79;havoc test_#t~nondet79; 369#L949 assume !(0 != test_~tmp___0~3); 297#L949-1 test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 322#L959 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 323#L967-2 assume !(0 != ~pumpRunning~0); 325#L703 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 293#L761 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 294#L735-1 assume !(0 == ~pumpRunning~0); 299#L710 havoc __utac_acc__Specification4_spec__1_#t~ret42, __utac_acc__Specification4_spec__1_#t~ret43, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 396#L528 __utac_acc__Specification4_spec__1_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret42;havoc __utac_acc__Specification4_spec__1_#t~ret42; 337#L419 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 338#L419-1 [2020-11-29 21:38:30,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:30,598 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 21:38:30,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:30,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358715413] [2020-11-29 21:38:30,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:30,690 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:30,751 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:30,767 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:38:30,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:30,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1068993906, now seen corresponding path program 1 times [2020-11-29 21:38:30,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:30,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941697548] [2020-11-29 21:38:30,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:38:30,793 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 21:38:30,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941697548] [2020-11-29 21:38:30,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:38:30,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:38:30,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719782856] [2020-11-29 21:38:30,794 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 21:38:30,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:38:30,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:38:30,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:38:30,795 INFO L87 Difference]: Start difference. First operand 125 states and 180 transitions. cyclomatic complexity: 57 Second operand 3 states. [2020-11-29 21:38:30,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:38:30,918 INFO L93 Difference]: Finished difference Result 166 states and 228 transitions. [2020-11-29 21:38:30,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:38:30,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 228 transitions. [2020-11-29 21:38:30,922 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2020-11-29 21:38:30,924 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 166 states and 228 transitions. [2020-11-29 21:38:30,925 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 166 [2020-11-29 21:38:30,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 166 [2020-11-29 21:38:30,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 166 states and 228 transitions. [2020-11-29 21:38:30,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:38:30,927 INFO L691 BuchiCegarLoop]: Abstraction has 166 states and 228 transitions. [2020-11-29 21:38:30,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states and 228 transitions. [2020-11-29 21:38:30,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-11-29 21:38:30,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-11-29 21:38:30,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 228 transitions. [2020-11-29 21:38:30,936 INFO L714 BuchiCegarLoop]: Abstraction has 166 states and 228 transitions. [2020-11-29 21:38:30,937 INFO L594 BuchiCegarLoop]: Abstraction has 166 states and 228 transitions. [2020-11-29 21:38:30,937 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 21:38:30,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 166 states and 228 transitions. [2020-11-29 21:38:30,939 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2020-11-29 21:38:30,939 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:38:30,939 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:38:30,940 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:38:30,940 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:38:30,940 INFO L794 eck$LassoCheckResult]: Stem: 692#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~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.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; 577#L-1 havoc main_#res;havoc main_#t~ret54, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 578#L680 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 673#L688 main_#t~ret54 := valid_product_#res;main_~tmp~4 := main_#t~ret54;havoc main_#t~ret54; 684#L644 assume 0 != main_~tmp~4; 649#L617 havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 630#L419-1 [2020-11-29 21:38:30,941 INFO L796 eck$LassoCheckResult]: Loop: 630#L419-1 assume !false; 633#L930 assume test_~splverifierCounter~0 < 4; 627#L931 test_~tmp~10 := test_#t~nondet78;havoc test_#t~nondet78; 628#L939 assume !(0 != test_~tmp~10); 663#L939-1 test_~tmp___0~3 := test_#t~nondet79;havoc test_#t~nondet79; 666#L949 assume !(0 != test_~tmp___0~3); 596#L949-1 test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 615#L959 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 616#L967-2 assume !(0 != ~pumpRunning~0); 618#L703 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 590#L761 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 591#L735-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret76, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 670#L536-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 584#L541-1 isHighWaterLevel_#t~ret76 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret76;havoc isHighWaterLevel_#t~ret76; 585#L881-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 661#L881-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 640#L887-1 processEnvironment__wrappee__highWaterSensor_#t~ret56 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret56;havoc processEnvironment__wrappee__highWaterSensor_#t~ret56; 599#L739-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 593#L710 havoc __utac_acc__Specification4_spec__1_#t~ret42, __utac_acc__Specification4_spec__1_#t~ret43, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 694#L528 __utac_acc__Specification4_spec__1_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret42;havoc __utac_acc__Specification4_spec__1_#t~ret42; 629#L419 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 630#L419-1 [2020-11-29 21:38:30,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:30,941 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 21:38:30,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:30,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754756539] [2020-11-29 21:38:30,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:31,001 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:31,063 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:31,076 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:38:31,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:31,077 INFO L82 PathProgramCache]: Analyzing trace with hash 87587066, now seen corresponding path program 1 times [2020-11-29 21:38:31,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:31,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646052277] [2020-11-29 21:38:31,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:31,084 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:31,089 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:31,094 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:38:31,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:31,095 INFO L82 PathProgramCache]: Analyzing trace with hash 543658260, now seen corresponding path program 1 times [2020-11-29 21:38:31,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:31,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476279152] [2020-11-29 21:38:31,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:31,157 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:31,200 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:31,221 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:38:31,354 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-29 21:39:51,239 WARN L193 SmtUtils]: Spent 1.33 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 21:40:47,629 WARN L193 SmtUtils]: Spent 56.38 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 21:40:47,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 09:40:47 BoogieIcfgContainer [2020-11-29 21:40:47,959 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 21:40:47,962 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:40:47,962 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:40:47,962 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:40:47,963 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:38:29" (3/4) ... [2020-11-29 21:40:47,968 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 21:40:48,022 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3c2ca9ca-8f02-4c99-8a3d-44003564941b/bin/uautomizer/witness.graphml [2020-11-29 21:40:48,022 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:40:48,024 INFO L168 Benchmark]: Toolchain (without parser) took 140280.26 ms. Allocated memory was 92.3 MB in the beginning and 136.3 MB in the end (delta: 44.0 MB). Free memory was 61.1 MB in the beginning and 47.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 57.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:40:48,024 INFO L168 Benchmark]: CDTParser took 0.85 ms. Allocated memory is still 92.3 MB. Free memory is still 49.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:40:48,025 INFO L168 Benchmark]: CACSL2BoogieTranslator took 559.28 ms. Allocated memory is still 92.3 MB. Free memory was 60.9 MB in the beginning and 58.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:40:48,026 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.00 ms. Allocated memory is still 92.3 MB. Free memory was 58.7 MB in the beginning and 54.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:40:48,026 INFO L168 Benchmark]: Boogie Preprocessor took 48.23 ms. Allocated memory is still 92.3 MB. Free memory was 54.9 MB in the beginning and 52.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:40:48,027 INFO L168 Benchmark]: RCFGBuilder took 1240.13 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 52.2 MB in the beginning and 44.8 MB in the end (delta: 7.4 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:40:48,028 INFO L168 Benchmark]: BuchiAutomizer took 138259.74 ms. Allocated memory was 111.1 MB in the beginning and 136.3 MB in the end (delta: 25.2 MB). Free memory was 44.8 MB in the beginning and 50.9 MB in the end (delta: -6.1 MB). Peak memory consumption was 44.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:40:48,039 INFO L168 Benchmark]: Witness Printer took 60.83 ms. Allocated memory is still 136.3 MB. Free memory was 49.8 MB in the beginning and 47.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:40:48,048 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85 ms. Allocated memory is still 92.3 MB. Free memory is still 49.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 559.28 ms. Allocated memory is still 92.3 MB. Free memory was 60.9 MB in the beginning and 58.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 104.00 ms. Allocated memory is still 92.3 MB. Free memory was 58.7 MB in the beginning and 54.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.23 ms. Allocated memory is still 92.3 MB. Free memory was 54.9 MB in the beginning and 52.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1240.13 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 52.2 MB in the beginning and 44.8 MB in the end (delta: 7.4 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 138259.74 ms. Allocated memory was 111.1 MB in the beginning and 136.3 MB in the end (delta: 25.2 MB). Free memory was 44.8 MB in the beginning and 50.9 MB in the end (delta: -6.1 MB). Peak memory consumption was 44.2 MB. Max. memory is 16.1 GB. * Witness Printer took 60.83 ms. Allocated memory is still 136.3 MB. Free memory was 49.8 MB in the beginning and 47.7 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 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 3 locations. The remainder module has 166 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 138.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 137.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 166 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 350 SDtfs, 313 SDslu, 66 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 929]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=24944} State at position 1 is {NULL=0, NULL=0, NULL=24944, NULL=69080, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2530edd8=0, NULL=0, tmp___1=0, NULL=24946, NULL=0, NULL=69082, NULL=69079, cleanupTimeShifts=4, NULL=41145, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a0ead52=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75db228f=0, NULL=0, waterLevel=1, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, tmp=1, NULL=0, NULL=0, NULL=0, \result=1, NULL=69094, NULL=0, retValue_acc=0, tmp=1, NULL=69100, NULL=0, tmp___0=0, tmp=1, NULL=0, retValue_acc=1, NULL=69096, NULL=69088, NULL=69092, head=0, NULL=0, NULL=0, tmp=0, NULL=69087, NULL=0, NULL=0, NULL=0, NULL=0, NULL=69099, retValue_acc=0, NULL=69083, NULL=69081, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c92d139=0, tmp___0=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ac0eef9=0, NULL=0, tmp___0=0, NULL=24945, NULL=24948, NULL=69101, tmp=0, NULL=69091, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66840a4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21522bfd=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=69093, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@671e505d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@172f030f=78, \result=0, NULL=24947, NULL=0, NULL=69084, NULL=69098, \result=0, NULL=0, NULL=69089, NULL=69090, retValue_acc=1, NULL=69085, tmp=0, tmp___2=78, splverifierCounter=0, NULL=0, NULL=69086, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@377f698c=0, NULL=69095, NULL=69097} - 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; [L453] int waterLevel = 1; [L454] int methaneLevelCritical = 0; [L556] int cleanupTimeShifts = 4; [L696] int pumpRunning = 0; [L697] int systemActive = 1; [L635] int retValue_acc ; [L636] int tmp ; [L684] int retValue_acc ; [L687] retValue_acc = 1 [L688] return (retValue_acc); [L642] tmp = valid_product() [L644] COND TRUE \read(tmp) [L920] int splverifierCounter ; [L921] int tmp ; [L922] int tmp___0 ; [L923] int tmp___1 ; [L924] int tmp___2 ; [L927] splverifierCounter = 0 Loop: [L929] COND TRUE 1 [L931] COND TRUE splverifierCounter < 4 [L937] tmp = __VERIFIER_nondet_int() [L939] COND FALSE !(\read(tmp)) [L947] tmp___0 = __VERIFIER_nondet_int() [L949] COND FALSE !(\read(tmp___0)) [L957] tmp___2 = __VERIFIER_nondet_int() [L959] COND TRUE \read(tmp___2) [L914] systemActive = 1 [L703] COND FALSE !(\read(pumpRunning)) [L710] COND TRUE \read(systemActive) [L758] int tmp ; [L761] COND FALSE !(\read(pumpRunning)) [L732] int tmp ; [L735] COND TRUE ! pumpRunning [L873] int retValue_acc ; [L874] int tmp ; [L875] int tmp___0 ; [L533] int retValue_acc ; [L536] COND TRUE waterLevel < 2 [L537] retValue_acc = 1 [L538] return (retValue_acc); [L879] tmp = isHighWaterSensorDry() [L881] COND TRUE \read(tmp) [L882] tmp___0 = 0 [L886] retValue_acc = tmp___0 [L887] return (retValue_acc); [L737] tmp = isHighWaterLevel() [L739] COND FALSE !(\read(tmp)) [L412] int tmp ; [L413] int tmp___0 ; [L524] int retValue_acc ; [L527] retValue_acc = waterLevel [L528] return (retValue_acc); [L417] tmp = getWaterLevel() [L419] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...