./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product44.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_970114fb-508a-459d-8dbc-c4bd60f4741b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_970114fb-508a-459d-8dbc-c4bd60f4741b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_970114fb-508a-459d-8dbc-c4bd60f4741b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_970114fb-508a-459d-8dbc-c4bd60f4741b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_970114fb-508a-459d-8dbc-c4bd60f4741b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_970114fb-508a-459d-8dbc-c4bd60f4741b/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 29fd7ebbcc9514a740018fa1c2ef695c1d81ea72 ........................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:35:56,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:35:56,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:35:56,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:35:56,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:35:56,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:35:56,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:35:56,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:35:56,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:35:56,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:35:56,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:35:56,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:35:56,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:35:56,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:35:56,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:35:56,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:35:56,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:35:56,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:35:56,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:35:56,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:35:56,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:35:56,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:35:56,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:35:56,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:35:56,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:35:56,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:35:56,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:35:56,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:35:56,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:35:56,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:35:56,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:35:56,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:35:56,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:35:56,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:35:56,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:35:56,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:35:56,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:35:56,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:35:56,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:35:56,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:35:56,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:35:56,346 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_970114fb-508a-459d-8dbc-c4bd60f4741b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 23:35:56,398 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:35:56,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:35:56,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:35:56,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:35:56,400 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:35:56,400 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:35:56,401 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:35:56,401 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:35:56,401 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:35:56,401 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:35:56,402 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:35:56,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:35:56,403 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:35:56,403 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:35:56,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:35:56,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:35:56,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:35:56,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:35:56,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:35:56,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:35:56,404 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:35:56,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:35:56,404 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:35:56,405 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:35:56,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:35:56,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:35:56,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:35:56,405 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:35:56,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:35:56,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:35:56,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:35:56,406 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:35:56,407 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:35:56,407 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_970114fb-508a-459d-8dbc-c4bd60f4741b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_970114fb-508a-459d-8dbc-c4bd60f4741b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29fd7ebbcc9514a740018fa1c2ef695c1d81ea72 [2020-11-29 23:35:56,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:35:56,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:35:56,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:35:56,810 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:35:56,811 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:35:56,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_970114fb-508a-459d-8dbc-c4bd60f4741b/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c [2020-11-29 23:35:56,917 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_970114fb-508a-459d-8dbc-c4bd60f4741b/bin/uautomizer/data/9789bbc00/f4a4f13ddce64153925d52f9f7c5d828/FLAG36a14b02a [2020-11-29 23:35:57,496 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:35:57,496 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_970114fb-508a-459d-8dbc-c4bd60f4741b/sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c [2020-11-29 23:35:57,511 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_970114fb-508a-459d-8dbc-c4bd60f4741b/bin/uautomizer/data/9789bbc00/f4a4f13ddce64153925d52f9f7c5d828/FLAG36a14b02a [2020-11-29 23:35:57,801 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_970114fb-508a-459d-8dbc-c4bd60f4741b/bin/uautomizer/data/9789bbc00/f4a4f13ddce64153925d52f9f7c5d828 [2020-11-29 23:35:57,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:35:57,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:35:57,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:35:57,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:35:57,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:35:57,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:35:57" (1/1) ... [2020-11-29 23:35:57,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@360fc8a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:57, skipping insertion in model container [2020-11-29 23:35:57,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:35:57" (1/1) ... [2020-11-29 23:35:57,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:35:57,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:35:58,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:35:58,264 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:35:58,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:35:58,486 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:35:58,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:58 WrapperNode [2020-11-29 23:35:58,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:35:58,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:35:58,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:35:58,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:35:58,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:58" (1/1) ... [2020-11-29 23:35:58,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:58" (1/1) ... [2020-11-29 23:35:58,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:35:58,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:35:58,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:35:58,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:35:58,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:58" (1/1) ... [2020-11-29 23:35:58,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:58" (1/1) ... [2020-11-29 23:35:58,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:58" (1/1) ... [2020-11-29 23:35:58,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:58" (1/1) ... [2020-11-29 23:35:58,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:58" (1/1) ... [2020-11-29 23:35:58,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:58" (1/1) ... [2020-11-29 23:35:58,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:58" (1/1) ... [2020-11-29 23:35:58,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:35:58,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:35:58,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:35:58,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:35:58,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_970114fb-508a-459d-8dbc-c4bd60f4741b/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 23:35:58,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:35:58,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:35:58,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:35:58,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:35:59,906 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:35:59,907 INFO L298 CfgBuilder]: Removed 126 assume(true) statements. [2020-11-29 23:35:59,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:35:59 BoogieIcfgContainer [2020-11-29 23:35:59,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:35:59,918 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:35:59,918 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:35:59,921 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:35:59,922 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:35:59,922 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:35:57" (1/3) ... [2020-11-29 23:35:59,923 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3da90dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:35:59, skipping insertion in model container [2020-11-29 23:35:59,923 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:35:59,924 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:58" (2/3) ... [2020-11-29 23:35:59,925 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3da90dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:35:59, skipping insertion in model container [2020-11-29 23:35:59,925 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:35:59,925 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:35:59" (3/3) ... [2020-11-29 23:35:59,927 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product44.cil.c [2020-11-29 23:35:59,974 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:35:59,975 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:35:59,975 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:35:59,975 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:35:59,975 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:35:59,975 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:35:59,976 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:35:59,976 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:35:59,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states. [2020-11-29 23:36:00,018 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2020-11-29 23:36:00,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:36:00,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:36:00,027 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:36:00,027 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:00,028 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:36:00,028 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states. [2020-11-29 23:36:00,035 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2020-11-29 23:36:00,036 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:36:00,036 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:36:00,037 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:36:00,037 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:00,051 INFO L794 eck$LassoCheckResult]: Stem: 37#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 10#L-1true havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 47#L462true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 73#L470true main_#t~ret69 := valid_product_#res;main_~tmp~8 := main_#t~ret69;havoc main_#t~ret69; 13#L841true assume 0 != main_~tmp~8; 82#L818true havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 56#L53-1true [2020-11-29 23:36:00,061 INFO L796 eck$LassoCheckResult]: Loop: 56#L53-1true assume !false; 71#L492true assume test_~splverifierCounter~0 < 4; 5#L493true test_~tmp~4 := test_#t~nondet45;havoc test_#t~nondet45; 33#L501true assume !(0 != test_~tmp~4); 11#L501-1true test_~tmp___0~1 := test_#t~nondet46;havoc test_#t~nondet46; 9#L511true assume !(0 != test_~tmp___0~1); 79#L511-1true test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 58#L521true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 88#L529-1true assume !(0 != ~pumpRunning~0); 36#L564true assume !(0 != ~systemActive~0); 43#L571true havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 49#L930true __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 80#L53true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 56#L53-1true [2020-11-29 23:36:00,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:00,066 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 23:36:00,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:00,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075064508] [2020-11-29 23:36:00,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:36:00,333 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:36:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:36:00,493 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:36:00,550 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:36:00,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:00,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1671648178, now seen corresponding path program 1 times [2020-11-29 23:36:00,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:00,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033863912] [2020-11-29 23:36:00,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:00,630 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 23:36:00,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033863912] [2020-11-29 23:36:00,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:36:00,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:36:00,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220395698] [2020-11-29 23:36:00,638 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 23:36:00,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:00,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:36:00,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:36:00,659 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 3 states. [2020-11-29 23:36:00,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:00,754 INFO L93 Difference]: Finished difference Result 166 states and 234 transitions. [2020-11-29 23:36:00,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:36:00,758 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 234 transitions. [2020-11-29 23:36:00,771 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 106 [2020-11-29 23:36:00,785 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 152 states and 219 transitions. [2020-11-29 23:36:00,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 152 [2020-11-29 23:36:00,788 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 152 [2020-11-29 23:36:00,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 152 states and 219 transitions. [2020-11-29 23:36:00,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:36:00,790 INFO L691 BuchiCegarLoop]: Abstraction has 152 states and 219 transitions. [2020-11-29 23:36:00,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states and 219 transitions. [2020-11-29 23:36:00,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2020-11-29 23:36:00,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-11-29 23:36:00,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2020-11-29 23:36:00,845 INFO L714 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2020-11-29 23:36:00,846 INFO L594 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2020-11-29 23:36:00,846 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:36:00,846 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 216 transitions. [2020-11-29 23:36:00,850 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2020-11-29 23:36:00,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:36:00,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:36:00,852 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:36:00,852 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:00,852 INFO L794 eck$LassoCheckResult]: Stem: 311#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 278#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 279#L462 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 323#L470 main_#t~ret69 := valid_product_#res;main_~tmp~8 := main_#t~ret69;havoc main_#t~ret69; 284#L841 assume 0 != main_~tmp~8; 285#L818 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 336#L53-1 [2020-11-29 23:36:00,853 INFO L796 eck$LassoCheckResult]: Loop: 336#L53-1 assume !false; 337#L492 assume test_~splverifierCounter~0 < 4; 365#L493 test_~tmp~4 := test_#t~nondet45;havoc test_#t~nondet45; 384#L501 assume !(0 != test_~tmp~4); 382#L501-1 test_~tmp___0~1 := test_#t~nondet46;havoc test_#t~nondet46; 381#L511 assume !(0 != test_~tmp___0~1); 379#L511-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 378#L521 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 339#L529-1 assume !(0 != ~pumpRunning~0); 310#L564 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 281#L596 assume !(0 == ~pumpRunning~0); 283#L571 havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 326#L930 __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 327#L53 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 336#L53-1 [2020-11-29 23:36:00,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:00,854 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 23:36:00,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:00,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586424690] [2020-11-29 23:36:00,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:36:00,937 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:36:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:36:01,038 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:36:01,104 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:36:01,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:01,117 INFO L82 PathProgramCache]: Analyzing trace with hash -323255267, now seen corresponding path program 1 times [2020-11-29 23:36:01,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:01,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574008569] [2020-11-29 23:36:01,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:01,147 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 23:36:01,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574008569] [2020-11-29 23:36:01,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:36:01,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:36:01,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150301122] [2020-11-29 23:36:01,149 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 23:36:01,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:01,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:36:01,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:36:01,150 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. cyclomatic complexity: 69 Second operand 3 states. [2020-11-29 23:36:01,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:01,265 INFO L93 Difference]: Finished difference Result 233 states and 322 transitions. [2020-11-29 23:36:01,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:36:01,271 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 233 states and 322 transitions. [2020-11-29 23:36:01,278 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 167 [2020-11-29 23:36:01,284 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 233 states to 233 states and 322 transitions. [2020-11-29 23:36:01,284 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 233 [2020-11-29 23:36:01,285 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 233 [2020-11-29 23:36:01,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 233 states and 322 transitions. [2020-11-29 23:36:01,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:36:01,288 INFO L691 BuchiCegarLoop]: Abstraction has 233 states and 322 transitions. [2020-11-29 23:36:01,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states and 322 transitions. [2020-11-29 23:36:01,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2020-11-29 23:36:01,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-11-29 23:36:01,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 322 transitions. [2020-11-29 23:36:01,307 INFO L714 BuchiCegarLoop]: Abstraction has 233 states and 322 transitions. [2020-11-29 23:36:01,307 INFO L594 BuchiCegarLoop]: Abstraction has 233 states and 322 transitions. [2020-11-29 23:36:01,307 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 23:36:01,307 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 233 states and 322 transitions. [2020-11-29 23:36:01,313 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 167 [2020-11-29 23:36:01,314 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:36:01,316 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:36:01,317 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:36:01,317 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] [2020-11-29 23:36:01,317 INFO L794 eck$LassoCheckResult]: Stem: 706#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 671#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 672#L462 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 714#L470 main_#t~ret69 := valid_product_#res;main_~tmp~8 := main_#t~ret69;havoc main_#t~ret69; 673#L841 assume 0 != main_~tmp~8; 674#L818 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 751#L53-1 [2020-11-29 23:36:01,317 INFO L796 eck$LassoCheckResult]: Loop: 751#L53-1 assume !false; 773#L492 assume test_~splverifierCounter~0 < 4; 770#L493 test_~tmp~4 := test_#t~nondet45;havoc test_#t~nondet45; 771#L501 assume !(0 != test_~tmp~4); 822#L501-1 test_~tmp___0~1 := test_#t~nondet46;havoc test_#t~nondet46; 762#L511 assume !(0 != test_~tmp___0~1); 760#L511-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 759#L521 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 754#L529-1 assume !(0 != ~pumpRunning~0); 703#L564 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 669#L596 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 670#L938 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 810#L943 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 807#L716 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 663#L716-2 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 664#L722 processEnvironment_#t~ret49 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret49;havoc processEnvironment_#t~ret49; 692#L600 assume !(0 != processEnvironment_~tmp~5); 688#L571 havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 785#L930 __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 778#L53 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 751#L53-1 [2020-11-29 23:36:01,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:01,318 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 23:36:01,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:01,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068606434] [2020-11-29 23:36:01,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:36:01,399 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:36:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:36:01,465 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:36:01,492 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:36:01,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:01,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1551152023, now seen corresponding path program 1 times [2020-11-29 23:36:01,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:01,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342877239] [2020-11-29 23:36:01,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:36:01,504 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:36:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:36:01,512 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:36:01,521 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:36:01,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:01,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1536440049, now seen corresponding path program 1 times [2020-11-29 23:36:01,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:01,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534583631] [2020-11-29 23:36:01,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:36:01,585 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:36:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:36:01,621 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:36:01,668 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:36:01,847 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-29 23:37:30,966 WARN L193 SmtUtils]: Spent 1.48 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 23:38:26,917 WARN L193 SmtUtils]: Spent 55.94 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 23:38:27,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:38:27 BoogieIcfgContainer [2020-11-29 23:38:27,235 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:38:27,235 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:38:27,236 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:38:27,236 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:38:27,236 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:35:59" (3/4) ... [2020-11-29 23:38:27,239 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 23:38:27,300 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_970114fb-508a-459d-8dbc-c4bd60f4741b/bin/uautomizer/witness.graphml [2020-11-29 23:38:27,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:38:27,301 INFO L168 Benchmark]: Toolchain (without parser) took 149495.63 ms. Allocated memory was 92.3 MB in the beginning and 142.6 MB in the end (delta: 50.3 MB). Free memory was 60.4 MB in the beginning and 42.3 MB in the end (delta: 18.0 MB). Peak memory consumption was 67.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:27,301 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 73.4 MB. Free memory was 35.3 MB in the beginning and 35.2 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:38:27,302 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.29 ms. Allocated memory is still 92.3 MB. Free memory was 60.2 MB in the beginning and 59.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:27,302 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.57 ms. Allocated memory is still 92.3 MB. Free memory was 58.6 MB in the beginning and 55.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:27,302 INFO L168 Benchmark]: Boogie Preprocessor took 53.47 ms. Allocated memory is still 92.3 MB. Free memory was 55.9 MB in the beginning and 53.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:27,303 INFO L168 Benchmark]: RCFGBuilder took 1260.90 ms. Allocated memory is still 92.3 MB. Free memory was 53.3 MB in the beginning and 40.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:27,303 INFO L168 Benchmark]: BuchiAutomizer took 147317.36 ms. Allocated memory was 92.3 MB in the beginning and 142.6 MB in the end (delta: 50.3 MB). Free memory was 40.3 MB in the beginning and 44.4 MB in the end (delta: -4.2 MB). Peak memory consumption was 65.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:27,303 INFO L168 Benchmark]: Witness Printer took 64.48 ms. Allocated memory is still 142.6 MB. Free memory was 44.4 MB in the beginning and 42.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:27,305 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 73.4 MB. Free memory was 35.3 MB in the beginning and 35.2 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 673.29 ms. Allocated memory is still 92.3 MB. Free memory was 60.2 MB in the beginning and 59.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.57 ms. Allocated memory is still 92.3 MB. Free memory was 58.6 MB in the beginning and 55.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.47 ms. Allocated memory is still 92.3 MB. Free memory was 55.9 MB in the beginning and 53.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1260.90 ms. Allocated memory is still 92.3 MB. Free memory was 53.3 MB in the beginning and 40.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 147317.36 ms. Allocated memory was 92.3 MB in the beginning and 142.6 MB in the end (delta: 50.3 MB). Free memory was 40.3 MB in the beginning and 44.4 MB in the end (delta: -4.2 MB). Peak memory consumption was 65.2 MB. Max. memory is 16.1 GB. * Witness Printer took 64.48 ms. Allocated memory is still 142.6 MB. Free memory was 44.4 MB in the beginning and 42.3 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 233 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 147.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 146.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 233 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 230 SDtfs, 210 SDslu, 158 SDs, 0 SdLazy, 32 SolverSat, 17 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: 491]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=22378} State at position 1 is {NULL=0, NULL=22383, NULL=0, retValue_acc=1, NULL=22378, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@447027eb=0, NULL=22387, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fec6bda=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1eb3cb98=64, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25d76c1e=0, NULL=0, NULL=22386, NULL=22399, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74ce6c7=0, NULL=22381, methaneLevelCritical=0, NULL=22395, tmp___0=0, NULL=0, tmp=0, NULL=22404, NULL=0, retValue_acc=0, tmp___1=0, NULL=22392, NULL=0, NULL=0, tmp___0=0, NULL=22405, NULL=22384, NULL=22393, cleanupTimeShifts=4, NULL=22398, NULL=22396, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ba7d764=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a00947f=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c6003ff=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32dad2e0=0, NULL=0, NULL=0, NULL=22380, \result=1, head=0, pumpRunning=0, NULL=22402, \result=0, NULL=0, tmp=1, \result=1, retValue_acc=1, NULL=22403, NULL=22391, tmp=1, NULL=0, NULL=0, NULL=0, NULL=22397, NULL=22382, NULL=0, NULL=22390, tmp=1, tmp___2=64, NULL=0, retValue_acc=1, NULL=22389, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=22388, NULL=22401, NULL=22400, head=0, NULL=0, tmp=0, NULL=22406, NULL=22394, NULL=0, NULL=0, NULL=0, NULL=22379, NULL=22385} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L240] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L557] int pumpRunning = 0; [L558] int systemActive = 1; [L759] int cleanupTimeShifts = 4; [L855] int waterLevel = 1; [L856] int methaneLevelCritical = 0; [L832] int retValue_acc ; [L833] int tmp ; [L466] int retValue_acc ; [L469] retValue_acc = 1 [L470] return (retValue_acc); [L839] tmp = valid_product() [L841] COND TRUE \read(tmp) [L482] int splverifierCounter ; [L483] int tmp ; [L484] int tmp___0 ; [L485] int tmp___1 ; [L486] int tmp___2 ; [L489] splverifierCounter = 0 Loop: [L491] COND TRUE 1 [L493] COND TRUE splverifierCounter < 4 [L499] tmp = __VERIFIER_nondet_int() [L501] COND FALSE !(\read(tmp)) [L509] tmp___0 = __VERIFIER_nondet_int() [L511] COND FALSE !(\read(tmp___0)) [L519] tmp___2 = __VERIFIER_nondet_int() [L521] COND TRUE \read(tmp___2) [L745] systemActive = 1 [L564] COND FALSE !(\read(pumpRunning)) [L571] COND TRUE \read(systemActive) [L593] int tmp ; [L596] COND TRUE ! pumpRunning [L708] int retValue_acc ; [L709] int tmp ; [L710] int tmp___0 ; [L935] int retValue_acc ; [L938] COND TRUE waterLevel < 2 [L939] retValue_acc = 1 [L940] return (retValue_acc); [L714] tmp = isHighWaterSensorDry() [L716] COND TRUE \read(tmp) [L717] tmp___0 = 0 [L721] retValue_acc = tmp___0 [L722] return (retValue_acc); [L598] tmp = isHighWaterLevel() [L600] COND FALSE !(\read(tmp)) [L46] int tmp ; [L47] int tmp___0 ; [L926] int retValue_acc ; [L929] retValue_acc = waterLevel [L930] return (retValue_acc); [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...