./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product47.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_f867446d-24b6-4f75-bff2-b1ed89cf692f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f867446d-24b6-4f75-bff2-b1ed89cf692f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f867446d-24b6-4f75-bff2-b1ed89cf692f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f867446d-24b6-4f75-bff2-b1ed89cf692f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f867446d-24b6-4f75-bff2-b1ed89cf692f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f867446d-24b6-4f75-bff2-b1ed89cf692f/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 01c6094ce00b6bee5e4a1d4107850fe1bcc8c33e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:37:55,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:37:55,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:37:55,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:37:55,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:37:55,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:37:55,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:37:55,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:37:55,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:37:55,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:37:55,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:37:55,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:37:55,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:37:55,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:37:55,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:37:55,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:37:55,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:37:55,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:37:55,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:37:55,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:37:55,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:37:55,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:37:55,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:37:55,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:37:55,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:37:55,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:37:55,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:37:55,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:37:55,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:37:55,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:37:55,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:37:55,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:37:55,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:37:55,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:37:55,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:37:55,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:37:55,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:37:55,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:37:55,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:37:55,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:37:55,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:37:55,930 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f867446d-24b6-4f75-bff2-b1ed89cf692f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 21:37:55,962 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:37:55,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:37:55,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:37:55,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:37:55,965 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:37:55,965 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 21:37:55,965 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 21:37:55,966 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 21:37:55,966 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 21:37:55,966 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 21:37:55,967 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 21:37:55,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:37:55,973 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:37:55,974 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 21:37:55,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:37:55,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:37:55,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:37:55,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 21:37:55,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 21:37:55,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 21:37:55,976 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:37:55,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:37:55,977 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 21:37:55,977 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:37:55,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 21:37:55,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:37:55,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:37:55,979 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 21:37:55,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:37:55,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:37:55,981 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:37:55,981 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 21:37:55,983 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 21:37:55,985 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_f867446d-24b6-4f75-bff2-b1ed89cf692f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f867446d-24b6-4f75-bff2-b1ed89cf692f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01c6094ce00b6bee5e4a1d4107850fe1bcc8c33e [2020-11-29 21:37:56,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:37:56,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:37:56,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:37:56,387 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:37:56,388 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:37:56,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f867446d-24b6-4f75-bff2-b1ed89cf692f/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2020-11-29 21:37:56,538 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f867446d-24b6-4f75-bff2-b1ed89cf692f/bin/uautomizer/data/bb96f49ca/311ddb1a103e4209954409f95d153635/FLAG278cda735 [2020-11-29 21:37:57,203 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:37:57,204 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f867446d-24b6-4f75-bff2-b1ed89cf692f/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2020-11-29 21:37:57,238 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f867446d-24b6-4f75-bff2-b1ed89cf692f/bin/uautomizer/data/bb96f49ca/311ddb1a103e4209954409f95d153635/FLAG278cda735 [2020-11-29 21:37:57,491 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f867446d-24b6-4f75-bff2-b1ed89cf692f/bin/uautomizer/data/bb96f49ca/311ddb1a103e4209954409f95d153635 [2020-11-29 21:37:57,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:37:57,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:37:57,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:37:57,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:37:57,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:37:57,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:37:57" (1/1) ... [2020-11-29 21:37:57,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2900be9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:37:57, skipping insertion in model container [2020-11-29 21:37:57,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:37:57" (1/1) ... [2020-11-29 21:37:57,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:37:57,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:37:58,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:37:58,098 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:37:58,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:37:58,267 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:37:58,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:37:58 WrapperNode [2020-11-29 21:37:58,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:37:58,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:37:58,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:37:58,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:37:58,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:37:58" (1/1) ... [2020-11-29 21:37:58,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:37:58" (1/1) ... [2020-11-29 21:37:58,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:37:58,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:37:58,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:37:58,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:37:58,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:37:58" (1/1) ... [2020-11-29 21:37:58,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:37:58" (1/1) ... [2020-11-29 21:37:58,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:37:58" (1/1) ... [2020-11-29 21:37:58,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:37:58" (1/1) ... [2020-11-29 21:37:58,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:37:58" (1/1) ... [2020-11-29 21:37:58,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:37:58" (1/1) ... [2020-11-29 21:37:58,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:37:58" (1/1) ... [2020-11-29 21:37:58,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:37:58,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:37:58,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:37:58,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:37:58,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:37:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f867446d-24b6-4f75-bff2-b1ed89cf692f/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 21:37:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:37:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:37:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:37:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:37:59,976 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:37:59,979 INFO L298 CfgBuilder]: Removed 208 assume(true) statements. [2020-11-29 21:37:59,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:37:59 BoogieIcfgContainer [2020-11-29 21:37:59,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:37:59,986 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 21:37:59,986 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 21:37:59,991 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 21:37:59,992 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:37:59,992 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 09:37:57" (1/3) ... [2020-11-29 21:37:59,994 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29632cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 09:37:59, skipping insertion in model container [2020-11-29 21:37:59,994 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:37:59,994 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:37:58" (2/3) ... [2020-11-29 21:37:59,995 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29632cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 09:37:59, skipping insertion in model container [2020-11-29 21:37:59,995 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:37:59,995 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:37:59" (3/3) ... [2020-11-29 21:37:59,998 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2020-11-29 21:38:00,083 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 21:38:00,084 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 21:38:00,090 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 21:38:00,090 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:38:00,091 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:38:00,091 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 21:38:00,091 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:38:00,091 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 21:38:00,129 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states. [2020-11-29 21:38:00,186 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2020-11-29 21:38:00,187 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:38:00,187 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:38:00,201 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:38:00,202 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:38:00,202 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 21:38:00,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states. [2020-11-29 21:38:00,222 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2020-11-29 21:38:00,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:38:00,226 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:38:00,227 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:38:00,228 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:38:00,243 INFO L794 eck$LassoCheckResult]: Stem: 100#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~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 12#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 49#L177true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 84#L185true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 83#L141true assume 0 != main_~tmp~0; 24#L114true havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 108#L952-1true [2020-11-29 21:38:00,244 INFO L796 eck$LassoCheckResult]: Loop: 108#L952-1true assume !false; 47#L568true assume test_~splverifierCounter~0 < 4; 121#L569true test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 5#L577true assume !(0 != test_~tmp~4); 8#L577-1true test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 71#L587true assume !(0 != test_~tmp___0~0); 74#L587-1true test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 112#L597true assume 0 != test_~tmp___2~0; 92#L603-1true assume !(0 != ~pumpRunning~0); 85#L639true assume !(0 != ~systemActive~0); 134#L646true havoc __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_#t~ret80, __utac_acc__Specification3_spec__1_#t~ret81, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 101#L886-3true __utac_acc__Specification3_spec__1_#t~ret79 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret79;havoc __utac_acc__Specification3_spec__1_#t~ret79; 129#L946true assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 108#L952-1true [2020-11-29 21:38:00,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:00,253 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 21:38:00,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:00,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964186655] [2020-11-29 21:38:00,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:00,715 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:00,905 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:00,954 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:38:00,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:00,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1670724674, now seen corresponding path program 1 times [2020-11-29 21:38:00,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:00,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091097582] [2020-11-29 21:38:00,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:00,965 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:00,970 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:00,978 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:38:00,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:00,980 INFO L82 PathProgramCache]: Analyzing trace with hash 43554264, now seen corresponding path program 1 times [2020-11-29 21:38:00,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:00,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3545220] [2020-11-29 21:38:00,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:38:01,278 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 21:38:01,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3545220] [2020-11-29 21:38:01,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:38:01,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 21:38:01,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069200343] [2020-11-29 21:38:01,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:38:01,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 21:38:01,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:38:01,444 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 6 states. [2020-11-29 21:38:01,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:38:01,844 INFO L93 Difference]: Finished difference Result 318 states and 453 transitions. [2020-11-29 21:38:01,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 21:38:01,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 318 states and 453 transitions. [2020-11-29 21:38:01,864 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 205 [2020-11-29 21:38:01,882 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 318 states to 297 states and 432 transitions. [2020-11-29 21:38:01,884 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 297 [2020-11-29 21:38:01,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 297 [2020-11-29 21:38:01,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 297 states and 432 transitions. [2020-11-29 21:38:01,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:38:01,891 INFO L691 BuchiCegarLoop]: Abstraction has 297 states and 432 transitions. [2020-11-29 21:38:01,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states and 432 transitions. [2020-11-29 21:38:01,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 174. [2020-11-29 21:38:01,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-11-29 21:38:01,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 252 transitions. [2020-11-29 21:38:01,953 INFO L714 BuchiCegarLoop]: Abstraction has 174 states and 252 transitions. [2020-11-29 21:38:01,953 INFO L594 BuchiCegarLoop]: Abstraction has 174 states and 252 transitions. [2020-11-29 21:38:01,953 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 21:38:01,953 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states and 252 transitions. [2020-11-29 21:38:01,958 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 120 [2020-11-29 21:38:01,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:38:01,959 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:38:01,961 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:38:01,961 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:38:01,961 INFO L794 eck$LassoCheckResult]: Stem: 592#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~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 489#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 490#L177 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 552#L185 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 585#L141 assume 0 != main_~tmp~0; 510#L114 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 511#L952-1 [2020-11-29 21:38:01,963 INFO L796 eck$LassoCheckResult]: Loop: 511#L952-1 assume !false; 548#L568 assume test_~splverifierCounter~0 < 4; 549#L569 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 476#L577 assume !(0 != test_~tmp~4); 478#L577-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 483#L587 assume !(0 != test_~tmp___0~0); 577#L587-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 581#L597 assume 0 != test_~tmp___2~0; 587#L603-1 assume !(0 != ~pumpRunning~0); 535#L639 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 564#L697 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret48, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 566#L671-1 assume !(0 == ~pumpRunning~0); 559#L646 havoc __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_#t~ret80, __utac_acc__Specification3_spec__1_#t~ret81, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 593#L886-3 __utac_acc__Specification3_spec__1_#t~ret79 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret79;havoc __utac_acc__Specification3_spec__1_#t~ret79; 594#L946 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 511#L952-1 [2020-11-29 21:38:01,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:01,965 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 21:38:01,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:01,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394081720] [2020-11-29 21:38:01,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:02,065 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:02,120 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:02,141 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:38:02,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:02,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1966055744, now seen corresponding path program 1 times [2020-11-29 21:38:02,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:02,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516154993] [2020-11-29 21:38:02,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:38:02,171 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 21:38:02,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516154993] [2020-11-29 21:38:02,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:38:02,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:38:02,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599301449] [2020-11-29 21:38:02,172 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 21:38:02,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:38:02,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:38:02,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:38:02,178 INFO L87 Difference]: Start difference. First operand 174 states and 252 transitions. cyclomatic complexity: 81 Second operand 3 states. [2020-11-29 21:38:02,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:38:02,391 INFO L93 Difference]: Finished difference Result 219 states and 301 transitions. [2020-11-29 21:38:02,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:38:02,394 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 219 states and 301 transitions. [2020-11-29 21:38:02,397 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 154 [2020-11-29 21:38:02,402 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 219 states to 219 states and 301 transitions. [2020-11-29 21:38:02,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 219 [2020-11-29 21:38:02,406 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2020-11-29 21:38:02,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 219 states and 301 transitions. [2020-11-29 21:38:02,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:38:02,416 INFO L691 BuchiCegarLoop]: Abstraction has 219 states and 301 transitions. [2020-11-29 21:38:02,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states and 301 transitions. [2020-11-29 21:38:02,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2020-11-29 21:38:02,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-11-29 21:38:02,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 301 transitions. [2020-11-29 21:38:02,439 INFO L714 BuchiCegarLoop]: Abstraction has 219 states and 301 transitions. [2020-11-29 21:38:02,439 INFO L594 BuchiCegarLoop]: Abstraction has 219 states and 301 transitions. [2020-11-29 21:38:02,439 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 21:38:02,439 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 219 states and 301 transitions. [2020-11-29 21:38:02,441 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 154 [2020-11-29 21:38:02,442 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:38:02,442 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:38:02,443 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:38:02,443 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 21:38:02,443 INFO L794 eck$LassoCheckResult]: Stem: 998#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~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 888#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 889#L177 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 953#L185 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 988#L141 assume 0 != main_~tmp~0; 909#L114 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 910#L952-1 [2020-11-29 21:38:02,444 INFO L796 eck$LassoCheckResult]: Loop: 910#L952-1 assume !false; 949#L568 assume test_~splverifierCounter~0 < 4; 950#L569 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 875#L577 assume !(0 != test_~tmp~4); 877#L577-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 882#L587 assume !(0 != test_~tmp___0~0); 977#L587-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 981#L597 assume 0 != test_~tmp___2~0; 991#L603-1 assume !(0 != ~pumpRunning~0); 989#L639 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 967#L697 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret48, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 968#L671-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 926#L926-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 927#L931-1 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 907#L816-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 908#L816-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 883#L822-1 processEnvironment__wrappee__methaneQuery_#t~ret48 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret48;havoc processEnvironment__wrappee__methaneQuery_#t~ret48; 884#L675-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 960#L646 havoc __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_#t~ret80, __utac_acc__Specification3_spec__1_#t~ret81, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 999#L886-3 __utac_acc__Specification3_spec__1_#t~ret79 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret79;havoc __utac_acc__Specification3_spec__1_#t~ret79; 1000#L946 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 910#L952-1 [2020-11-29 21:38:02,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:02,445 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 21:38:02,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:02,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623647233] [2020-11-29 21:38:02,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:02,530 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:02,593 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:02,611 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:38:02,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:02,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1687938738, now seen corresponding path program 1 times [2020-11-29 21:38:02,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:02,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632016120] [2020-11-29 21:38:02,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:38:02,653 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 21:38:02,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632016120] [2020-11-29 21:38:02,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:38:02,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 21:38:02,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838093043] [2020-11-29 21:38:02,654 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 21:38:02,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:38:02,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:38:02,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:38:02,656 INFO L87 Difference]: Start difference. First operand 219 states and 301 transitions. cyclomatic complexity: 85 Second operand 4 states. [2020-11-29 21:38:02,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:38:02,840 INFO L93 Difference]: Finished difference Result 621 states and 843 transitions. [2020-11-29 21:38:02,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 21:38:02,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 621 states and 843 transitions. [2020-11-29 21:38:02,850 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 446 [2020-11-29 21:38:02,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 621 states to 621 states and 843 transitions. [2020-11-29 21:38:02,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 621 [2020-11-29 21:38:02,859 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 621 [2020-11-29 21:38:02,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 621 states and 843 transitions. [2020-11-29 21:38:02,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:38:02,863 INFO L691 BuchiCegarLoop]: Abstraction has 621 states and 843 transitions. [2020-11-29 21:38:02,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states and 843 transitions. [2020-11-29 21:38:02,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 231. [2020-11-29 21:38:02,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-11-29 21:38:02,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 313 transitions. [2020-11-29 21:38:02,894 INFO L714 BuchiCegarLoop]: Abstraction has 231 states and 313 transitions. [2020-11-29 21:38:02,894 INFO L594 BuchiCegarLoop]: Abstraction has 231 states and 313 transitions. [2020-11-29 21:38:02,895 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 21:38:02,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states and 313 transitions. [2020-11-29 21:38:02,897 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 162 [2020-11-29 21:38:02,897 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:38:02,897 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:38:02,898 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:38:02,899 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 21:38:02,899 INFO L794 eck$LassoCheckResult]: Stem: 1861#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~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1738#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1739#L177 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 1809#L185 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 1852#L141 assume 0 != main_~tmp~0; 1760#L114 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1761#L952-1 [2020-11-29 21:38:02,899 INFO L796 eck$LassoCheckResult]: Loop: 1761#L952-1 assume !false; 1805#L568 assume test_~splverifierCounter~0 < 4; 1806#L569 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 1725#L577 assume !(0 != test_~tmp~4); 1727#L577-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 1732#L587 assume !(0 != test_~tmp___0~0); 1843#L587-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 1844#L597 assume 0 != test_~tmp___2~0; 1855#L603-1 assume !(0 != ~pumpRunning~0); 1853#L639 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1824#L697 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret48, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 1825#L671-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1778#L926-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1779#L931-1 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 1758#L816-3 assume !(0 != isHighWaterLevel_~tmp~8);isHighWaterLevel_~tmp___0~1 := 1; 1759#L816-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1733#L822-1 processEnvironment__wrappee__methaneQuery_#t~ret48 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret48;havoc processEnvironment__wrappee__methaneQuery_#t~ret48; 1734#L675-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 1817#L646 havoc __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_#t~ret80, __utac_acc__Specification3_spec__1_#t~ret81, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 1862#L886-3 __utac_acc__Specification3_spec__1_#t~ret79 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret79;havoc __utac_acc__Specification3_spec__1_#t~ret79; 1863#L946 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 1761#L952-1 [2020-11-29 21:38:02,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:02,904 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2020-11-29 21:38:02,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:02,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264328682] [2020-11-29 21:38:02,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:02,983 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:03,024 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:03,039 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:38:03,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:03,043 INFO L82 PathProgramCache]: Analyzing trace with hash 87068624, now seen corresponding path program 1 times [2020-11-29 21:38:03,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:03,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231296514] [2020-11-29 21:38:03,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:38:03,104 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 21:38:03,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231296514] [2020-11-29 21:38:03,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:38:03,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 21:38:03,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475652136] [2020-11-29 21:38:03,105 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 21:38:03,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:38:03,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 21:38:03,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:38:03,107 INFO L87 Difference]: Start difference. First operand 231 states and 313 transitions. cyclomatic complexity: 85 Second operand 5 states. [2020-11-29 21:38:03,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:38:03,398 INFO L93 Difference]: Finished difference Result 579 states and 780 transitions. [2020-11-29 21:38:03,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 21:38:03,399 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 579 states and 780 transitions. [2020-11-29 21:38:03,405 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 418 [2020-11-29 21:38:03,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 579 states to 579 states and 780 transitions. [2020-11-29 21:38:03,413 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 579 [2020-11-29 21:38:03,414 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 579 [2020-11-29 21:38:03,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 579 states and 780 transitions. [2020-11-29 21:38:03,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:38:03,416 INFO L691 BuchiCegarLoop]: Abstraction has 579 states and 780 transitions. [2020-11-29 21:38:03,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states and 780 transitions. [2020-11-29 21:38:03,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 249. [2020-11-29 21:38:03,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-11-29 21:38:03,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 331 transitions. [2020-11-29 21:38:03,446 INFO L714 BuchiCegarLoop]: Abstraction has 249 states and 331 transitions. [2020-11-29 21:38:03,446 INFO L594 BuchiCegarLoop]: Abstraction has 249 states and 331 transitions. [2020-11-29 21:38:03,446 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 21:38:03,446 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 249 states and 331 transitions. [2020-11-29 21:38:03,449 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 174 [2020-11-29 21:38:03,449 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:38:03,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:38:03,451 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:38:03,452 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 21:38:03,452 INFO L794 eck$LassoCheckResult]: Stem: 2690#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~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2564#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 2565#L177 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 2636#L185 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 2678#L141 assume 0 != main_~tmp~0; 2586#L114 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2587#L952-1 [2020-11-29 21:38:03,453 INFO L796 eck$LassoCheckResult]: Loop: 2587#L952-1 assume !false; 2632#L568 assume test_~splverifierCounter~0 < 4; 2633#L569 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 2549#L577 assume !(0 != test_~tmp~4); 2551#L577-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 2556#L587 assume !(0 != test_~tmp___0~0); 2668#L587-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 2672#L597 assume 0 != test_~tmp___2~0; 2681#L603-1 assume !(0 != ~pumpRunning~0); 2679#L639 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 2653#L697 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret48, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 2654#L671-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 2605#L926-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 2607#L931-1 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 2660#L816-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 2718#L816-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 2557#L822-1 processEnvironment__wrappee__methaneQuery_#t~ret48 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret48;havoc processEnvironment__wrappee__methaneQuery_#t~ret48; 2558#L675-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 2644#L646 havoc __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_#t~ret80, __utac_acc__Specification3_spec__1_#t~ret81, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 2710#L886-3 __utac_acc__Specification3_spec__1_#t~ret79 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret79;havoc __utac_acc__Specification3_spec__1_#t~ret79; 2777#L946 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 2587#L952-1 [2020-11-29 21:38:03,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:03,463 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 5 times [2020-11-29 21:38:03,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:03,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091874204] [2020-11-29 21:38:03,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:03,514 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:03,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:03,563 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:03,577 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:38:03,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:03,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1926970188, now seen corresponding path program 1 times [2020-11-29 21:38:03,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:03,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120307104] [2020-11-29 21:38:03,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:03,591 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:03,599 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:03,606 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:38:03,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:03,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1911925914, now seen corresponding path program 1 times [2020-11-29 21:38:03,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:03,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136468883] [2020-11-29 21:38:03,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:38:03,713 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 21:38:03,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136468883] [2020-11-29 21:38:03,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:38:03,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:38:03,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069648041] [2020-11-29 21:38:04,163 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-11-29 21:38:04,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:38:04,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 21:38:04,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:38:04,263 INFO L87 Difference]: Start difference. First operand 249 states and 331 transitions. cyclomatic complexity: 85 Second operand 5 states. [2020-11-29 21:38:04,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:38:04,583 INFO L93 Difference]: Finished difference Result 839 states and 1112 transitions. [2020-11-29 21:38:04,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 21:38:04,584 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 839 states and 1112 transitions. [2020-11-29 21:38:04,594 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 614 [2020-11-29 21:38:04,626 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 839 states to 839 states and 1112 transitions. [2020-11-29 21:38:04,626 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 839 [2020-11-29 21:38:04,628 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 839 [2020-11-29 21:38:04,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 839 states and 1112 transitions. [2020-11-29 21:38:04,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:38:04,630 INFO L691 BuchiCegarLoop]: Abstraction has 839 states and 1112 transitions. [2020-11-29 21:38:04,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states and 1112 transitions. [2020-11-29 21:38:04,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 492. [2020-11-29 21:38:04,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 492 states. [2020-11-29 21:38:04,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 644 transitions. [2020-11-29 21:38:04,650 INFO L714 BuchiCegarLoop]: Abstraction has 492 states and 644 transitions. [2020-11-29 21:38:04,651 INFO L594 BuchiCegarLoop]: Abstraction has 492 states and 644 transitions. [2020-11-29 21:38:04,651 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 21:38:04,651 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 492 states and 644 transitions. [2020-11-29 21:38:04,655 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 348 [2020-11-29 21:38:04,655 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:38:04,656 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:38:04,657 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:38:04,657 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:38:04,658 INFO L794 eck$LassoCheckResult]: Stem: 3794#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~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 3669#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 3670#L177 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 3743#L185 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 3784#L141 assume 0 != main_~tmp~0; 3692#L114 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3693#L952-1 [2020-11-29 21:38:04,658 INFO L796 eck$LassoCheckResult]: Loop: 3693#L952-1 assume !false; 3739#L568 assume test_~splverifierCounter~0 < 4; 3740#L569 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 3655#L577 assume !(0 != test_~tmp~4); 3657#L577-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 3662#L587 assume !(0 != test_~tmp___0~0); 3773#L587-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 3777#L597 assume 0 != test_~tmp___2~0; 3787#L603-1 assume !(0 != ~pumpRunning~0); 3785#L639 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 3761#L697 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret48, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 3762#L671-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 3711#L926-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 3713#L931-1 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 4130#L816-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 4129#L816-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 4128#L822-1 processEnvironment__wrappee__methaneQuery_#t~ret48 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret48;havoc processEnvironment__wrappee__methaneQuery_#t~ret48; 4127#L675-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 3752#L646 havoc __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_#t~ret80, __utac_acc__Specification3_spec__1_#t~ret81, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 3795#L886-3 __utac_acc__Specification3_spec__1_#t~ret79 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret79;havoc __utac_acc__Specification3_spec__1_#t~ret79; 3796#L946 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~9);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; 4085#L918 __utac_acc__Specification3_spec__1_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret80;havoc __utac_acc__Specification3_spec__1_#t~ret80; 4084#L952 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 3693#L952-1 [2020-11-29 21:38:04,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:04,659 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 6 times [2020-11-29 21:38:04,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:04,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963299179] [2020-11-29 21:38:04,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:04,706 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:04,760 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:04,772 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:38:04,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:04,773 INFO L82 PathProgramCache]: Analyzing trace with hash 687454752, now seen corresponding path program 1 times [2020-11-29 21:38:04,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:04,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722133529] [2020-11-29 21:38:04,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:04,779 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:04,784 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:04,789 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:38:04,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:38:04,790 INFO L82 PathProgramCache]: Analyzing trace with hash 885207994, now seen corresponding path program 1 times [2020-11-29 21:38:04,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:38:04,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577188725] [2020-11-29 21:38:04,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:38:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:04,849 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:38:04,915 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:38:04,946 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:38:05,155 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-11-29 21:39:56,590 WARN L193 SmtUtils]: Spent 1.86 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 21:40:59,981 WARN L193 SmtUtils]: Spent 1.06 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 21:41:00,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 09:41:00 BoogieIcfgContainer [2020-11-29 21:41:00,173 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 21:41:00,173 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:41:00,173 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:41:00,174 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:41:00,174 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:37:59" (3/4) ... [2020-11-29 21:41:00,177 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 21:41:00,244 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f867446d-24b6-4f75-bff2-b1ed89cf692f/bin/uautomizer/witness.graphml [2020-11-29 21:41:00,244 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:41:00,246 INFO L168 Benchmark]: Toolchain (without parser) took 182741.18 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 59.5 MB in the beginning and 92.5 MB in the end (delta: -33.1 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:41:00,246 INFO L168 Benchmark]: CDTParser took 1.13 ms. Allocated memory is still 73.4 MB. Free memory was 48.8 MB in the beginning and 48.8 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:41:00,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 761.83 ms. Allocated memory is still 92.3 MB. Free memory was 59.2 MB in the beginning and 59.9 MB in the end (delta: -708.8 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:41:00,247 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.46 ms. Allocated memory is still 92.3 MB. Free memory was 59.9 MB in the beginning and 56.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:41:00,248 INFO L168 Benchmark]: Boogie Preprocessor took 80.43 ms. Allocated memory is still 92.3 MB. Free memory was 56.2 MB in the beginning and 53.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:41:00,249 INFO L168 Benchmark]: RCFGBuilder took 1508.57 ms. Allocated memory is still 92.3 MB. Free memory was 53.1 MB in the beginning and 61.0 MB in the end (delta: -7.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. [2020-11-29 21:41:00,249 INFO L168 Benchmark]: BuchiAutomizer took 180187.13 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 60.4 MB in the beginning and 95.5 MB in the end (delta: -35.2 MB). Peak memory consumption was 77.7 MB. Max. memory is 16.1 GB. [2020-11-29 21:41:00,250 INFO L168 Benchmark]: Witness Printer took 70.77 ms. Allocated memory is still 134.2 MB. Free memory was 95.5 MB in the beginning and 92.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:41:00,253 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.13 ms. Allocated memory is still 73.4 MB. Free memory was 48.8 MB in the beginning and 48.8 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 761.83 ms. Allocated memory is still 92.3 MB. Free memory was 59.2 MB in the beginning and 59.9 MB in the end (delta: -708.8 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 123.46 ms. Allocated memory is still 92.3 MB. Free memory was 59.9 MB in the beginning and 56.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.43 ms. Allocated memory is still 92.3 MB. Free memory was 56.2 MB in the beginning and 53.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1508.57 ms. Allocated memory is still 92.3 MB. Free memory was 53.1 MB in the beginning and 61.0 MB in the end (delta: -7.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 180187.13 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 60.4 MB in the beginning and 95.5 MB in the end (delta: -35.2 MB). Peak memory consumption was 77.7 MB. Max. memory is 16.1 GB. * Witness Printer took 70.77 ms. Allocated memory is still 134.2 MB. Free memory was 95.5 MB in the beginning and 92.5 MB in the end (delta: 3.0 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 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 492 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 180.0s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 178.1s. Construction of modules took 0.9s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 1190 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 492 states and ocurred in iteration 5. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1238 SDtfs, 2511 SDslu, 2707 SDs, 0 SdLazy, 361 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 567]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=13871} State at position 1 is {NULL=0, NULL=13886, NULL=0, retValue_acc=1, NULL=13871, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42b663d3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50166030=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2390bc0f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@127a09fc=0, methaneLevelCritical=0, tmp=0, retValue_acc=0, NULL=0, tmp___1=0, NULL=13895, NULL=0, NULL=13879, NULL=13876, cleanupTimeShifts=4, tmp=0, NULL=0, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38249eca=0, tmp___0=0, \result=1, head=0, pumpRunning=0, tmp=1, NULL=13873, NULL=13892, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5299ac29=0, \result=1, NULL=0, NULL=13887, NULL=0, NULL=0, NULL=0, tmp=1, NULL=13882, NULL=13894, NULL=13875, head=0, NULL=0, tmp=0, NULL=13899, NULL=13881, NULL=0, NULL=0, NULL=0, tmp=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59c7b525=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@498a632c=0, NULL=0, NULL=13888, NULL=13883, NULL=13891, NULL=13878, tmp___0=0, NULL=0, NULL=13893, NULL=13884, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d89e970=0, NULL=0, NULL=13897, NULL=13880, NULL=13877, tmp___0=1, NULL=0, NULL=0, systemActive=1, \result=1, NULL=0, retValue_acc=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=13898, \result=0, NULL=13874, NULL=13872, retValue_acc=1, tmp___2=56, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=13896, NULL=13890, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f5312c7=0, NULL=13885, NULL=13889, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@759c0751=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L631] int pumpRunning = 0; [L632] int systemActive = 1; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; [L132] int retValue_acc ; [L133] int tmp ; [L181] int retValue_acc ; [L184] retValue_acc = 1 [L185] return (retValue_acc); [L139] tmp = valid_product() [L141] COND TRUE \read(tmp) [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 Loop: [L567] COND TRUE 1 [L569] COND TRUE splverifierCounter < 4 [L575] tmp = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp)) [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp___0)) [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND TRUE \read(tmp___2) [L639] COND FALSE !(\read(pumpRunning)) [L646] COND TRUE \read(systemActive) [L694] int tmp ; [L697] COND FALSE !(\read(pumpRunning)) [L668] int tmp ; [L671] COND TRUE ! pumpRunning [L808] int retValue_acc ; [L809] int tmp ; [L810] int tmp___0 ; [L923] int retValue_acc ; [L926] COND TRUE waterLevel < 2 [L927] retValue_acc = 1 [L928] return (retValue_acc); [L814] tmp = isHighWaterSensorDry() [L816] COND TRUE \read(tmp) [L817] tmp___0 = 0 [L821] retValue_acc = tmp___0 [L822] return (retValue_acc); [L673] tmp = isHighWaterLevel() [L675] COND FALSE !(\read(tmp)) [L938] int tmp ; [L939] int tmp___0 ; [L940] int tmp___1 ; [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] return (retValue_acc); [L944] tmp = isMethaneLevelCritical() [L946] COND FALSE !(\read(tmp)) [L914] int retValue_acc ; [L917] retValue_acc = waterLevel [L918] return (retValue_acc); [L950] tmp___0 = getWaterLevel() [L952] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...