./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product64.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_414de9dd-eb73-4e9f-b87d-9cd1b2e22014/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_414de9dd-eb73-4e9f-b87d-9cd1b2e22014/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_414de9dd-eb73-4e9f-b87d-9cd1b2e22014/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_414de9dd-eb73-4e9f-b87d-9cd1b2e22014/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_414de9dd-eb73-4e9f-b87d-9cd1b2e22014/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_414de9dd-eb73-4e9f-b87d-9cd1b2e22014/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 160c8d64ba84e9e53149049b180f0e762ed5d721 ................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 22:04:43,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:04:43,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:04:43,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:04:43,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:04:43,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:04:43,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:04:43,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:04:43,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:04:43,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:04:43,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:04:43,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:04:43,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:04:43,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:04:43,215 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:04:43,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:04:43,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:04:43,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:04:43,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:04:43,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:04:43,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:04:43,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:04:43,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:04:43,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:04:43,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:04:43,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:04:43,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:04:43,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:04:43,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:04:43,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:04:43,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:04:43,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:04:43,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:04:43,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:04:43,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:04:43,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:04:43,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:04:43,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:04:43,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:04:43,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:04:43,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:04:43,331 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_414de9dd-eb73-4e9f-b87d-9cd1b2e22014/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 22:04:43,391 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:04:43,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:04:43,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:04:43,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:04:43,394 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:04:43,395 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:04:43,395 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:04:43,396 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:04:43,396 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:04:43,396 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:04:43,398 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:04:43,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:04:43,399 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:04:43,399 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:04:43,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:04:43,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:04:43,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:04:43,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:04:43,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:04:43,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:04:43,401 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:04:43,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:04:43,402 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:04:43,402 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:04:43,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:04:43,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:04:43,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:04:43,404 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:04:43,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:04:43,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:04:43,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:04:43,407 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:04:43,409 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:04:43,409 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_414de9dd-eb73-4e9f-b87d-9cd1b2e22014/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_414de9dd-eb73-4e9f-b87d-9cd1b2e22014/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 160c8d64ba84e9e53149049b180f0e762ed5d721 [2020-11-29 22:04:43,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:04:43,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:04:43,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:04:43,889 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:04:43,890 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:04:43,892 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_414de9dd-eb73-4e9f-b87d-9cd1b2e22014/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2020-11-29 22:04:43,988 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_414de9dd-eb73-4e9f-b87d-9cd1b2e22014/bin/uautomizer/data/5e117fd79/8b222dace3754a9fa3b25577ed88195e/FLAG506616028 [2020-11-29 22:04:44,662 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:04:44,663 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_414de9dd-eb73-4e9f-b87d-9cd1b2e22014/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2020-11-29 22:04:44,679 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_414de9dd-eb73-4e9f-b87d-9cd1b2e22014/bin/uautomizer/data/5e117fd79/8b222dace3754a9fa3b25577ed88195e/FLAG506616028 [2020-11-29 22:04:44,962 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_414de9dd-eb73-4e9f-b87d-9cd1b2e22014/bin/uautomizer/data/5e117fd79/8b222dace3754a9fa3b25577ed88195e [2020-11-29 22:04:44,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:04:44,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:04:44,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:04:44,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:04:44,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:04:44,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:04:44" (1/1) ... [2020-11-29 22:04:44,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a38a055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:44, skipping insertion in model container [2020-11-29 22:04:44,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:04:44" (1/1) ... [2020-11-29 22:04:44,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:04:45,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:04:45,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:04:45,631 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:04:45,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:04:45,784 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:04:45,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:45 WrapperNode [2020-11-29 22:04:45,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:04:45,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:04:45,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:04:45,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:04:45,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:45" (1/1) ... [2020-11-29 22:04:45,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:45" (1/1) ... [2020-11-29 22:04:45,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:04:45,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:04:45,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:04:45,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:04:45,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:45" (1/1) ... [2020-11-29 22:04:45,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:45" (1/1) ... [2020-11-29 22:04:45,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:45" (1/1) ... [2020-11-29 22:04:45,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:45" (1/1) ... [2020-11-29 22:04:46,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:45" (1/1) ... [2020-11-29 22:04:46,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:45" (1/1) ... [2020-11-29 22:04:46,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:45" (1/1) ... [2020-11-29 22:04:46,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:04:46,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:04:46,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:04:46,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:04:46,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_414de9dd-eb73-4e9f-b87d-9cd1b2e22014/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 22:04:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:04:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:04:46,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:04:46,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:04:47,908 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:04:47,910 INFO L298 CfgBuilder]: Removed 360 assume(true) statements. [2020-11-29 22:04:47,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:04:47 BoogieIcfgContainer [2020-11-29 22:04:47,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:04:47,916 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:04:47,917 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:04:47,921 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:04:47,922 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:04:47,923 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:04:44" (1/3) ... [2020-11-29 22:04:47,925 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@788f8f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:04:47, skipping insertion in model container [2020-11-29 22:04:47,925 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:04:47,926 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:04:45" (2/3) ... [2020-11-29 22:04:47,927 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@788f8f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:04:47, skipping insertion in model container [2020-11-29 22:04:47,927 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:04:47,927 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:04:47" (3/3) ... [2020-11-29 22:04:47,930 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product64.cil.c [2020-11-29 22:04:47,998 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:04:47,999 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:04:47,999 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:04:47,999 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:04:47,999 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:04:48,000 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:04:48,000 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:04:48,000 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:04:48,024 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 227 states. [2020-11-29 22:04:48,066 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2020-11-29 22:04:48,066 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:04:48,067 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:04:48,077 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:04:48,077 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:04:48,078 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:04:48,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 227 states. [2020-11-29 22:04:48,093 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2020-11-29 22:04:48,098 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:04:48,098 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:04:48,100 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:04:48,102 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:04:48,116 INFO L794 eck$LassoCheckResult]: Stem: 111#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~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 8#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; 227#L1015true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 7#L1023true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 122#L132true assume 0 != main_~tmp~0; 162#L105true havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 123#L165-1true [2020-11-29 22:04:48,117 INFO L796 eck$LassoCheckResult]: Loop: 123#L165-1true assume !false; 84#L196true assume test_~splverifierCounter~0 < 4; 4#L197true test_~tmp~2 := test_#t~nondet10;havoc test_#t~nondet10; 151#L205true assume !(0 != test_~tmp~2); 150#L205-1true test_~tmp___0~1 := test_#t~nondet11;havoc test_#t~nondet11; 99#L215true assume !(0 != test_~tmp___0~1); 96#L215-1true test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 129#L225true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 228#L233-1true assume !(0 != ~pumpRunning~0); 62#L268true assume !(0 != ~systemActive~0); 107#L275true havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 137#L965true __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 104#L165true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 123#L165-1true [2020-11-29 22:04:48,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:04:48,126 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 22:04:48,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:04:48,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678712945] [2020-11-29 22:04:48,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:04:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:04:48,551 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:04:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:04:48,759 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:04:48,824 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:04:48,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:04:48,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1665583730, now seen corresponding path program 1 times [2020-11-29 22:04:48,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:04:48,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681121146] [2020-11-29 22:04:48,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:04:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:04:48,928 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 22:04:48,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681121146] [2020-11-29 22:04:48,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:04:48,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:04:48,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982299155] [2020-11-29 22:04:48,943 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:04:48,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:04:48,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:04:48,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:04:48,967 INFO L87 Difference]: Start difference. First operand 227 states. Second operand 3 states. [2020-11-29 22:04:49,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:04:49,142 INFO L93 Difference]: Finished difference Result 442 states and 648 transitions. [2020-11-29 22:04:49,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:04:49,147 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 442 states and 648 transitions. [2020-11-29 22:04:49,166 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 290 [2020-11-29 22:04:49,178 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 442 states to 428 states and 633 transitions. [2020-11-29 22:04:49,179 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 428 [2020-11-29 22:04:49,181 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 428 [2020-11-29 22:04:49,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 428 states and 633 transitions. [2020-11-29 22:04:49,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:04:49,187 INFO L691 BuchiCegarLoop]: Abstraction has 428 states and 633 transitions. [2020-11-29 22:04:49,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states and 633 transitions. [2020-11-29 22:04:49,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 426. [2020-11-29 22:04:49,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-11-29 22:04:49,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 630 transitions. [2020-11-29 22:04:49,270 INFO L714 BuchiCegarLoop]: Abstraction has 426 states and 630 transitions. [2020-11-29 22:04:49,271 INFO L594 BuchiCegarLoop]: Abstraction has 426 states and 630 transitions. [2020-11-29 22:04:49,271 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:04:49,271 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 426 states and 630 transitions. [2020-11-29 22:04:49,276 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 288 [2020-11-29 22:04:49,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:04:49,276 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:04:49,277 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:04:49,278 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:04:49,285 INFO L794 eck$LassoCheckResult]: Stem: 830#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~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 688#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; 689#L1015 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 686#L1023 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 687#L132 assume 0 != main_~tmp~0; 846#L105 havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 898#L165-1 [2020-11-29 22:04:49,285 INFO L796 eck$LassoCheckResult]: Loop: 898#L165-1 assume !false; 988#L196 assume test_~splverifierCounter~0 < 4; 987#L197 test_~tmp~2 := test_#t~nondet10;havoc test_#t~nondet10; 886#L205 assume !(0 != test_~tmp~2); 848#L205-1 test_~tmp___0~1 := test_#t~nondet11;havoc test_#t~nondet11; 931#L215 assume !(0 != test_~tmp___0~1); 929#L215-1 test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 858#L225 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 859#L233-1 assume !(0 != ~pumpRunning~0); 721#L268 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 769#L352 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret15, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1092#L326-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 1052#L300-3 assume !(0 == ~pumpRunning~0); 1047#L275 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 1046#L965 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 1044#L165 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 898#L165-1 [2020-11-29 22:04:49,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:04:49,293 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 22:04:49,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:04:49,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356931674] [2020-11-29 22:04:49,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:04:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:04:49,380 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:04:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:04:49,480 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:04:49,516 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:04:49,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:04:49,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1220566467, now seen corresponding path program 1 times [2020-11-29 22:04:49,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:04:49,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261628785] [2020-11-29 22:04:49,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:04:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:04:49,552 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 22:04:49,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261628785] [2020-11-29 22:04:49,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:04:49,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:04:49,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783058602] [2020-11-29 22:04:49,554 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:04:49,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:04:49,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:04:49,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:04:49,555 INFO L87 Difference]: Start difference. First operand 426 states and 630 transitions. cyclomatic complexity: 207 Second operand 3 states. [2020-11-29 22:04:49,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:04:49,794 INFO L93 Difference]: Finished difference Result 419 states and 586 transitions. [2020-11-29 22:04:49,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:04:49,795 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 419 states and 586 transitions. [2020-11-29 22:04:49,799 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 291 [2020-11-29 22:04:49,805 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 419 states to 419 states and 586 transitions. [2020-11-29 22:04:49,805 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 419 [2020-11-29 22:04:49,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 419 [2020-11-29 22:04:49,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 419 states and 586 transitions. [2020-11-29 22:04:49,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:04:49,811 INFO L691 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2020-11-29 22:04:49,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states and 586 transitions. [2020-11-29 22:04:49,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2020-11-29 22:04:49,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-11-29 22:04:49,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 586 transitions. [2020-11-29 22:04:49,857 INFO L714 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2020-11-29 22:04:49,857 INFO L594 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2020-11-29 22:04:49,857 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 22:04:49,857 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 419 states and 586 transitions. [2020-11-29 22:04:49,861 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 291 [2020-11-29 22:04:49,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:04:49,861 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:04:49,863 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:04:49,863 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] [2020-11-29 22:04:49,863 INFO L794 eck$LassoCheckResult]: Stem: 1724#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~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1541#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; 1542#L1015 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1539#L1023 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 1540#L132 assume 0 != main_~tmp~0; 1666#L105 havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1600#L165-1 [2020-11-29 22:04:49,864 INFO L796 eck$LassoCheckResult]: Loop: 1600#L165-1 assume !false; 1680#L196 assume test_~splverifierCounter~0 < 4; 1533#L197 test_~tmp~2 := test_#t~nondet10;havoc test_#t~nondet10; 1534#L205 assume !(0 != test_~tmp~2); 1607#L205-1 test_~tmp___0~1 := test_#t~nondet11;havoc test_#t~nondet11; 1608#L215 assume !(0 != test_~tmp___0~1); 1752#L215-1 test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 1740#L225 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1738#L233-1 assume !(0 != ~pumpRunning~0); 1647#L268 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1648#L352 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret15, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1801#L326-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 1800#L300-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret35, isHighWaterLevel_~retValue_acc~3, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~3;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 1597#L973-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 1598#L978-3 isHighWaterLevel_#t~ret35 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret35;havoc isHighWaterLevel_#t~ret35; 1797#L471-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 1795#L471-11 isHighWaterLevel_~retValue_acc~3 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~3; 1794#L477-3 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 1792#L304-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 1619#L275 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 1561#L965 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 1562#L165 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 1600#L165-1 [2020-11-29 22:04:49,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:04:49,865 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 22:04:49,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:04:49,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676945439] [2020-11-29 22:04:49,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:04:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:04:49,952 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:04:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:04:50,075 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:04:50,095 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:04:50,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:04:50,097 INFO L82 PathProgramCache]: Analyzing trace with hash -231328529, now seen corresponding path program 1 times [2020-11-29 22:04:50,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:04:50,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927365707] [2020-11-29 22:04:50,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:04:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:04:50,107 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:04:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:04:50,115 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:04:50,121 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:04:50,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:04:50,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1021976597, now seen corresponding path program 1 times [2020-11-29 22:04:50,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:04:50,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173062480] [2020-11-29 22:04:50,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:04:50,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:04:50,216 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:04:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:04:50,282 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:04:50,310 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:04:50,508 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-29 22:04:50,616 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-11-29 22:06:31,807 WARN L193 SmtUtils]: Spent 1.69 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 22:07:43,811 WARN L193 SmtUtils]: Spent 1.20 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 22:07:44,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:07:44 BoogieIcfgContainer [2020-11-29 22:07:44,183 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:07:44,184 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:07:44,184 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:07:44,184 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:07:44,185 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:04:47" (3/4) ... [2020-11-29 22:07:44,188 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 22:07:44,256 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_414de9dd-eb73-4e9f-b87d-9cd1b2e22014/bin/uautomizer/witness.graphml [2020-11-29 22:07:44,256 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:07:44,258 INFO L168 Benchmark]: Toolchain (without parser) took 179289.10 ms. Allocated memory was 98.6 MB in the beginning and 169.9 MB in the end (delta: 71.3 MB). Free memory was 69.9 MB in the beginning and 129.5 MB in the end (delta: -59.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:07:44,259 INFO L168 Benchmark]: CDTParser took 0.95 ms. Allocated memory is still 98.6 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:07:44,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 816.37 ms. Allocated memory is still 98.6 MB. Free memory was 69.6 MB in the beginning and 62.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:07:44,260 INFO L168 Benchmark]: Boogie Procedure Inliner took 157.54 ms. Allocated memory is still 98.6 MB. Free memory was 62.9 MB in the beginning and 57.3 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:07:44,261 INFO L168 Benchmark]: Boogie Preprocessor took 94.76 ms. Allocated memory is still 98.6 MB. Free memory was 57.3 MB in the beginning and 53.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:07:44,262 INFO L168 Benchmark]: RCFGBuilder took 1869.65 ms. Allocated memory was 98.6 MB in the beginning and 136.3 MB in the end (delta: 37.7 MB). Free memory was 53.1 MB in the beginning and 71.4 MB in the end (delta: -18.3 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:07:44,263 INFO L168 Benchmark]: BuchiAutomizer took 176266.63 ms. Allocated memory was 136.3 MB in the beginning and 169.9 MB in the end (delta: 33.6 MB). Free memory was 71.4 MB in the beginning and 131.6 MB in the end (delta: -60.2 MB). Peak memory consumption was 66.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:07:44,263 INFO L168 Benchmark]: Witness Printer took 72.78 ms. Allocated memory is still 169.9 MB. Free memory was 131.6 MB in the beginning and 129.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:07:44,267 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.95 ms. Allocated memory is still 98.6 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 816.37 ms. Allocated memory is still 98.6 MB. Free memory was 69.6 MB in the beginning and 62.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 157.54 ms. Allocated memory is still 98.6 MB. Free memory was 62.9 MB in the beginning and 57.3 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 94.76 ms. Allocated memory is still 98.6 MB. Free memory was 57.3 MB in the beginning and 53.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1869.65 ms. Allocated memory was 98.6 MB in the beginning and 136.3 MB in the end (delta: 37.7 MB). Free memory was 53.1 MB in the beginning and 71.4 MB in the end (delta: -18.3 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 176266.63 ms. Allocated memory was 136.3 MB in the beginning and 169.9 MB in the end (delta: 33.6 MB). Free memory was 71.4 MB in the beginning and 131.6 MB in the end (delta: -60.2 MB). Peak memory consumption was 66.1 MB. Max. memory is 16.1 GB. * Witness Printer took 72.78 ms. Allocated memory is still 169.9 MB. Free memory was 131.6 MB in the beginning and 129.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 419 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 176.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 175.3s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 426 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 553 SDtfs, 496 SDslu, 392 SDs, 0 SdLazy, 53 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 195]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1369} State at position 1 is {NULL=0, NULL=0, NULL=1371, NULL=1369, NULL=0, NULL=1392, NULL=0, NULL=1370, retValue_acc=1, methaneLevelCritical=0, tmp=0, retValue_acc=0, NULL=0, NULL=1385, NULL=0, tmp___1=0, NULL=0, NULL=1394, cleanupTimeShifts=4, waterLevel=1, NULL=0, NULL=1389, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11850af9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ae516d1=0, NULL=1381, \result=1, head=0, pumpRunning=0, tmp=1, NULL=1380, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46df764f=0, NULL=0, \result=1, NULL=0, tmp=1, NULL=0, NULL=1384, NULL=0, retValue_acc=1, tmp=1, NULL=0, NULL=1375, tmp___0=0, NULL=1388, NULL=1393, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4835d1f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d748adc=0, NULL=1386, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33afd6a3=70, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@557214e7=0, head=0, NULL=0, NULL=0, tmp=0, NULL=1387, NULL=1374, tmp=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57e2d44d=0, NULL=1377, tmp___0=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5745f97c=0, NULL=0, tmp___0=0, NULL=1379, tmp=0, NULL=1372, NULL=0, systemActive=1, NULL=1395, \result=1, NULL=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=1383, \result=0, NULL=1391, NULL=1396, NULL=1382, NULL=1373, NULL=1376, tmp___2=70, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=1378, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ae5e794=0, NULL=1397, NULL=0, NULL=0, NULL=0, NULL=1390, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48c1ee7e=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L261] int pumpRunning = 0; [L262] int systemActive = 1; [L693] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L890] int waterLevel = 1; [L891] int methaneLevelCritical = 0; [L123] int retValue_acc ; [L124] int tmp ; [L1019] int retValue_acc ; [L1022] retValue_acc = 1 [L1023] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L186] int splverifierCounter ; [L187] int tmp ; [L188] int tmp___0 ; [L189] int tmp___1 ; [L190] int tmp___2 ; [L193] splverifierCounter = 0 Loop: [L195] COND TRUE 1 [L197] COND TRUE splverifierCounter < 4 [L203] tmp = __VERIFIER_nondet_int() [L205] COND FALSE !(\read(tmp)) [L213] tmp___0 = __VERIFIER_nondet_int() [L215] COND FALSE !(\read(tmp___0)) [L223] tmp___2 = __VERIFIER_nondet_int() [L225] COND TRUE \read(tmp___2) [L519] systemActive = 1 [L268] COND FALSE !(\read(pumpRunning)) [L275] COND TRUE \read(systemActive) [L349] int tmp ; [L352] COND FALSE !(\read(pumpRunning)) [L323] int tmp ; [L326] COND FALSE !(\read(pumpRunning)) [L297] int tmp ; [L300] COND TRUE ! pumpRunning [L463] int retValue_acc ; [L464] int tmp ; [L465] int tmp___0 ; [L970] int retValue_acc ; [L973] COND TRUE waterLevel < 2 [L974] retValue_acc = 1 [L975] return (retValue_acc); [L469] tmp = isHighWaterSensorDry() [L471] COND TRUE \read(tmp) [L472] tmp___0 = 0 [L476] retValue_acc = tmp___0 [L477] return (retValue_acc); [L302] tmp = isHighWaterLevel() [L304] COND FALSE !(\read(tmp)) [L158] int tmp ; [L159] int tmp___0 ; [L961] int retValue_acc ; [L964] retValue_acc = waterLevel [L965] return (retValue_acc); [L163] tmp = getWaterLevel() [L165] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...