./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product48.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_1cb8c041-593d-46e6-a2d7-20e0125ba4d1/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1cb8c041-593d-46e6-a2d7-20e0125ba4d1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1cb8c041-593d-46e6-a2d7-20e0125ba4d1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1cb8c041-593d-46e6-a2d7-20e0125ba4d1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product48.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1cb8c041-593d-46e6-a2d7-20e0125ba4d1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1cb8c041-593d-46e6-a2d7-20e0125ba4d1/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 b344abba4d30d2c065bb81b7d5c104985c5373df ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 [2020-11-30 01:16:32,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:16:32,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:16:32,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:16:32,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:16:32,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:16:32,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:16:32,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:16:32,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:16:32,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:16:32,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:16:32,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:16:32,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:16:32,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:16:32,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:16:32,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:16:32,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:16:32,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:16:32,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:16:33,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:16:33,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:16:33,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:16:33,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:16:33,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:16:33,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:16:33,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:16:33,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:16:33,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:16:33,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:16:33,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:16:33,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:16:33,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:16:33,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:16:33,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:16:33,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:16:33,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:16:33,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:16:33,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:16:33,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:16:33,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:16:33,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:16:33,038 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1cb8c041-593d-46e6-a2d7-20e0125ba4d1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:16:33,083 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:16:33,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:16:33,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:16:33,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:16:33,086 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:16:33,086 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:16:33,087 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:16:33,087 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:16:33,087 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:16:33,087 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:16:33,088 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:16:33,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:16:33,089 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:16:33,089 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:16:33,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:16:33,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:16:33,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:16:33,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:16:33,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:16:33,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:16:33,091 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:16:33,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:16:33,091 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:16:33,092 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:16:33,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:16:33,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:16:33,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:16:33,093 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:16:33,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:16:33,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:16:33,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:16:33,094 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:16:33,095 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:16:33,095 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_1cb8c041-593d-46e6-a2d7-20e0125ba4d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1cb8c041-593d-46e6-a2d7-20e0125ba4d1/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b344abba4d30d2c065bb81b7d5c104985c5373df [2020-11-30 01:16:33,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:16:33,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:16:33,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:16:33,457 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:16:33,458 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:16:33,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1cb8c041-593d-46e6-a2d7-20e0125ba4d1/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product48.cil.c [2020-11-30 01:16:33,546 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1cb8c041-593d-46e6-a2d7-20e0125ba4d1/bin/uautomizer/data/f0215a7d5/74fe0ab8b462427e9f7aebac24c446c9/FLAGeb35df328 [2020-11-30 01:16:34,167 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:16:34,167 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1cb8c041-593d-46e6-a2d7-20e0125ba4d1/sv-benchmarks/c/product-lines/minepump_spec5_product48.cil.c [2020-11-30 01:16:34,192 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1cb8c041-593d-46e6-a2d7-20e0125ba4d1/bin/uautomizer/data/f0215a7d5/74fe0ab8b462427e9f7aebac24c446c9/FLAGeb35df328 [2020-11-30 01:16:34,425 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1cb8c041-593d-46e6-a2d7-20e0125ba4d1/bin/uautomizer/data/f0215a7d5/74fe0ab8b462427e9f7aebac24c446c9 [2020-11-30 01:16:34,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:16:34,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:16:34,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:16:34,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:16:34,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:16:34,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:16:34" (1/1) ... [2020-11-30 01:16:34,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19957501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:34, skipping insertion in model container [2020-11-30 01:16:34,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:16:34" (1/1) ... [2020-11-30 01:16:34,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:16:34,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:16:34,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:16:34,829 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:16:34,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:16:34,942 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:16:34,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:34 WrapperNode [2020-11-30 01:16:34,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:16:34,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:16:34,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:16:34,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:16:34,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:34" (1/1) ... [2020-11-30 01:16:34,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:34" (1/1) ... [2020-11-30 01:16:35,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:16:35,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:16:35,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:16:35,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:16:35,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:34" (1/1) ... [2020-11-30 01:16:35,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:34" (1/1) ... [2020-11-30 01:16:35,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:34" (1/1) ... [2020-11-30 01:16:35,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:34" (1/1) ... [2020-11-30 01:16:35,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:34" (1/1) ... [2020-11-30 01:16:35,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:34" (1/1) ... [2020-11-30 01:16:35,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:34" (1/1) ... [2020-11-30 01:16:35,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:16:35,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:16:35,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:16:35,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:16:35,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1cb8c041-593d-46e6-a2d7-20e0125ba4d1/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 [2020-11-30 01:16:35,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:16:35,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:16:35,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:16:35,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:16:36,332 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:16:36,336 INFO L298 CfgBuilder]: Removed 218 assume(true) statements. [2020-11-30 01:16:36,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:16:36 BoogieIcfgContainer [2020-11-30 01:16:36,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:16:36,341 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:16:36,341 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:16:36,345 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:16:36,346 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:16:36,346 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:16:34" (1/3) ... [2020-11-30 01:16:36,347 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@634109cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:16:36, skipping insertion in model container [2020-11-30 01:16:36,348 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:16:36,348 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:34" (2/3) ... [2020-11-30 01:16:36,349 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@634109cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:16:36, skipping insertion in model container [2020-11-30 01:16:36,349 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:16:36,349 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:16:36" (3/3) ... [2020-11-30 01:16:36,356 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product48.cil.c [2020-11-30 01:16:36,412 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:16:36,412 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:16:36,412 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:16:36,412 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:16:36,412 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:16:36,413 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:16:36,413 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:16:36,413 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:16:36,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 140 states. [2020-11-30 01:16:36,456 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 91 [2020-11-30 01:16:36,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:16:36,456 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:16:36,464 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:36,465 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:36,465 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:16:36,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 140 states. [2020-11-30 01:16:36,473 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 91 [2020-11-30 01:16:36,473 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:16:36,473 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:16:36,475 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:36,475 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:36,480 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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 10#L-1true havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8; 122#L990true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 23#L998true main_#t~ret77 := valid_product_#res;main_~tmp~8 := main_#t~ret77;havoc main_#t~ret77; 115#L905true assume 0 != main_~tmp~8; 4#L877true ~switchedOnBeforeTS~0 := 0; 97#L925true havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 133#L946-1true [2020-11-30 01:16:36,481 INFO L796 eck$LassoCheckResult]: Loop: 133#L946-1true assume !false; 127#L434true assume test_~splverifierCounter~0 < 4; 95#L435true test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 113#L443true assume !(0 != test_~tmp~3); 114#L443-1true test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 27#L453true assume !(0 != test_~tmp___0~0); 3#L453-1true test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 81#L463true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 89#L471-1true havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 35#L640true __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 129#L935true assume !(0 != ~pumpRunning~0); 108#L512true assume !(0 != ~systemActive~0); 20#L519true havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 70#L799true __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 128#L946true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 133#L946-1true [2020-11-30 01:16:36,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:36,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-30 01:16:36,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:36,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051919424] [2020-11-30 01:16:36,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:36,820 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:36,966 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:37,021 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:16:37,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:37,026 INFO L82 PathProgramCache]: Analyzing trace with hash 677504056, now seen corresponding path program 1 times [2020-11-30 01:16:37,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:37,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363323817] [2020-11-30 01:16:37,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:37,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:37,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363323817] [2020-11-30 01:16:37,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:16:37,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:16:37,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635735076] [2020-11-30 01:16:37,088 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:16:37,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:16:37,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:16:37,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:16:37,105 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 3 states. [2020-11-30 01:16:37,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:37,203 INFO L93 Difference]: Finished difference Result 267 states and 383 transitions. [2020-11-30 01:16:37,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:16:37,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 267 states and 383 transitions. [2020-11-30 01:16:37,226 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 174 [2020-11-30 01:16:37,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 267 states to 253 states and 368 transitions. [2020-11-30 01:16:37,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 253 [2020-11-30 01:16:37,238 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 253 [2020-11-30 01:16:37,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 253 states and 368 transitions. [2020-11-30 01:16:37,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:16:37,241 INFO L691 BuchiCegarLoop]: Abstraction has 253 states and 368 transitions. [2020-11-30 01:16:37,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states and 368 transitions. [2020-11-30 01:16:37,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 251. [2020-11-30 01:16:37,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-11-30 01:16:37,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 365 transitions. [2020-11-30 01:16:37,288 INFO L714 BuchiCegarLoop]: Abstraction has 251 states and 365 transitions. [2020-11-30 01:16:37,288 INFO L594 BuchiCegarLoop]: Abstraction has 251 states and 365 transitions. [2020-11-30 01:16:37,288 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:16:37,288 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 251 states and 365 transitions. [2020-11-30 01:16:37,292 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 172 [2020-11-30 01:16:37,292 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:16:37,292 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:16:37,293 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:37,293 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:37,294 INFO L794 eck$LassoCheckResult]: Stem: 553#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 430#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8; 431#L990 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 454#L998 main_#t~ret77 := valid_product_#res;main_~tmp~8 := main_#t~ret77;havoc main_#t~ret77; 455#L905 assume 0 != main_~tmp~8; 418#L877 ~switchedOnBeforeTS~0 := 0; 419#L925 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 549#L946-1 [2020-11-30 01:16:37,294 INFO L796 eck$LassoCheckResult]: Loop: 549#L946-1 assume !false; 615#L434 assume test_~splverifierCounter~0 < 4; 547#L435 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 548#L443 assume !(0 != test_~tmp~3); 457#L443-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 461#L453 assume !(0 != test_~tmp___0~0); 416#L453-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 417#L463 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 532#L471-1 havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 474#L640 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 475#L935 assume !(0 != ~pumpRunning~0); 530#L512 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 635#L570 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret46, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 627#L544-1 assume !(0 == ~pumpRunning~0); 621#L519 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 620#L799 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 618#L946 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 549#L946-1 [2020-11-30 01:16:37,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:37,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-30 01:16:37,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:37,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648307046] [2020-11-30 01:16:37,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:37,345 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:37,397 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:37,430 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:16:37,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:37,435 INFO L82 PathProgramCache]: Analyzing trace with hash -538952358, now seen corresponding path program 1 times [2020-11-30 01:16:37,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:37,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435593017] [2020-11-30 01:16:37,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:37,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:37,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435593017] [2020-11-30 01:16:37,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:16:37,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:16:37,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428917209] [2020-11-30 01:16:37,470 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:16:37,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:16:37,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:16:37,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:16:37,472 INFO L87 Difference]: Start difference. First operand 251 states and 365 transitions. cyclomatic complexity: 117 Second operand 3 states. [2020-11-30 01:16:37,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:37,640 INFO L93 Difference]: Finished difference Result 350 states and 487 transitions. [2020-11-30 01:16:37,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:16:37,641 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 350 states and 487 transitions. [2020-11-30 01:16:37,645 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 247 [2020-11-30 01:16:37,650 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 350 states to 350 states and 487 transitions. [2020-11-30 01:16:37,650 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 350 [2020-11-30 01:16:37,652 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 350 [2020-11-30 01:16:37,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 350 states and 487 transitions. [2020-11-30 01:16:37,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:16:37,654 INFO L691 BuchiCegarLoop]: Abstraction has 350 states and 487 transitions. [2020-11-30 01:16:37,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states and 487 transitions. [2020-11-30 01:16:37,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2020-11-30 01:16:37,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-11-30 01:16:37,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 487 transitions. [2020-11-30 01:16:37,683 INFO L714 BuchiCegarLoop]: Abstraction has 350 states and 487 transitions. [2020-11-30 01:16:37,683 INFO L594 BuchiCegarLoop]: Abstraction has 350 states and 487 transitions. [2020-11-30 01:16:37,684 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:16:37,684 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 350 states and 487 transitions. [2020-11-30 01:16:37,688 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 247 [2020-11-30 01:16:37,689 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:16:37,689 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:16:37,691 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:37,691 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] [2020-11-30 01:16:37,691 INFO L794 eck$LassoCheckResult]: Stem: 1182#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 1038#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8; 1039#L990 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1066#L998 main_#t~ret77 := valid_product_#res;main_~tmp~8 := main_#t~ret77;havoc main_#t~ret77; 1067#L905 assume 0 != main_~tmp~8; 1025#L877 ~switchedOnBeforeTS~0 := 0; 1026#L925 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1174#L946-1 [2020-11-30 01:16:37,692 INFO L796 eck$LassoCheckResult]: Loop: 1174#L946-1 assume !false; 1188#L434 assume test_~splverifierCounter~0 < 4; 1172#L435 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 1173#L443 assume !(0 != test_~tmp~3); 1069#L443-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 1074#L453 assume !(0 != test_~tmp___0~0); 1076#L453-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 1273#L463 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1165#L471-1 havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 1263#L640 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 1262#L935 assume !(0 != ~pumpRunning~0); 1238#L512 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1261#L570 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret46, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1034#L544-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret66, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1035#L807-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1178#L812-1 isHighWaterLevel_#t~ret66 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret66;havoc isHighWaterLevel_#t~ret66; 1179#L689-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1105#L689-5 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1106#L695-1 processEnvironment__wrappee__methaneQuery_#t~ret46 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~4 := processEnvironment__wrappee__methaneQuery_#t~ret46;havoc processEnvironment__wrappee__methaneQuery_#t~ret46; 1159#L548-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4); 1143#L519 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 1287#L799 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 1286#L946 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 1174#L946-1 [2020-11-30 01:16:37,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:37,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-30 01:16:37,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:37,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603064142] [2020-11-30 01:16:37,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:37,751 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:37,843 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:37,859 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:16:37,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:37,860 INFO L82 PathProgramCache]: Analyzing trace with hash 2055068230, now seen corresponding path program 1 times [2020-11-30 01:16:37,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:37,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049584787] [2020-11-30 01:16:37,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:37,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:37,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049584787] [2020-11-30 01:16:37,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:16:37,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:16:37,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340584854] [2020-11-30 01:16:37,929 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:16:37,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:16:37,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:16:37,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:16:37,930 INFO L87 Difference]: Start difference. First operand 350 states and 487 transitions. cyclomatic complexity: 140 Second operand 5 states. [2020-11-30 01:16:38,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:38,227 INFO L93 Difference]: Finished difference Result 1535 states and 2147 transitions. [2020-11-30 01:16:38,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:16:38,228 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1535 states and 2147 transitions. [2020-11-30 01:16:38,244 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1070 [2020-11-30 01:16:38,260 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1535 states to 1535 states and 2147 transitions. [2020-11-30 01:16:38,260 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1535 [2020-11-30 01:16:38,277 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1535 [2020-11-30 01:16:38,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1535 states and 2147 transitions. [2020-11-30 01:16:38,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:16:38,282 INFO L691 BuchiCegarLoop]: Abstraction has 1535 states and 2147 transitions. [2020-11-30 01:16:38,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states and 2147 transitions. [2020-11-30 01:16:38,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 687. [2020-11-30 01:16:38,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 687 states. [2020-11-30 01:16:38,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 943 transitions. [2020-11-30 01:16:38,324 INFO L714 BuchiCegarLoop]: Abstraction has 687 states and 943 transitions. [2020-11-30 01:16:38,325 INFO L594 BuchiCegarLoop]: Abstraction has 687 states and 943 transitions. [2020-11-30 01:16:38,325 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 01:16:38,325 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 687 states and 943 transitions. [2020-11-30 01:16:38,330 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 490 [2020-11-30 01:16:38,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:16:38,331 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:16:38,333 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:38,333 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, 1, 1] [2020-11-30 01:16:38,335 INFO L794 eck$LassoCheckResult]: Stem: 3079#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 2943#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8; 2944#L990 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 2969#L998 main_#t~ret77 := valid_product_#res;main_~tmp~8 := main_#t~ret77;havoc main_#t~ret77; 2970#L905 assume 0 != main_~tmp~8; 2929#L877 ~switchedOnBeforeTS~0 := 0; 2930#L925 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3074#L946-1 [2020-11-30 01:16:38,335 INFO L796 eck$LassoCheckResult]: Loop: 3074#L946-1 assume !false; 3310#L434 assume test_~splverifierCounter~0 < 4; 3309#L435 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 3308#L443 assume !(0 != test_~tmp~3); 3306#L443-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 3305#L453 assume !(0 != test_~tmp___0~0); 3303#L453-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 3302#L463 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3263#L471-1 havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 3244#L640 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 3242#L935 assume !(0 != ~pumpRunning~0); 3241#L512 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 3240#L570 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret46, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 3236#L544-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret66, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 3238#L807-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 3224#L812-1 isHighWaterLevel_#t~ret66 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret66;havoc isHighWaterLevel_#t~ret66; 3232#L689-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 3201#L689-5 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 3200#L695-1 processEnvironment__wrappee__methaneQuery_#t~ret46 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~4 := processEnvironment__wrappee__methaneQuery_#t~ret46;havoc processEnvironment__wrappee__methaneQuery_#t~ret46; 3198#L548-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4); 3191#L519 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 3315#L799 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 3314#L946 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 3313#L640-1 __utac_acc__Specification5_spec__3_#t~ret80 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 3312#L950 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 3074#L946-1 [2020-11-30 01:16:38,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:38,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-30 01:16:38,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:38,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771249513] [2020-11-30 01:16:38,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:38,399 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:38,441 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:38,457 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:16:38,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:38,459 INFO L82 PathProgramCache]: Analyzing trace with hash -764400415, now seen corresponding path program 1 times [2020-11-30 01:16:38,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:38,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530944213] [2020-11-30 01:16:38,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:38,468 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:38,476 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:38,481 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:16:38,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:38,482 INFO L82 PathProgramCache]: Analyzing trace with hash -827826597, now seen corresponding path program 1 times [2020-11-30 01:16:38,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:38,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833318094] [2020-11-30 01:16:38,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:38,529 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:38,561 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:38,580 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:16:38,780 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-11-30 01:17:57,794 WARN L193 SmtUtils]: Spent 1.32 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-30 01:19:00,637 WARN L193 SmtUtils]: Spent 1.05 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-30 01:19:00,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:19:00 BoogieIcfgContainer [2020-11-30 01:19:00,845 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:19:00,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:19:00,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:19:00,851 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:19:00,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:16:36" (3/4) ... [2020-11-30 01:19:00,855 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:19:00,922 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1cb8c041-593d-46e6-a2d7-20e0125ba4d1/bin/uautomizer/witness.graphml [2020-11-30 01:19:00,922 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:19:00,924 INFO L168 Benchmark]: Toolchain (without parser) took 146494.63 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 66.9 MB in the beginning and 63.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 49.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:19:00,924 INFO L168 Benchmark]: CDTParser took 0.85 ms. Allocated memory is still 96.5 MB. Free memory is still 52.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:19:00,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 512.22 ms. Allocated memory is still 96.5 MB. Free memory was 66.9 MB in the beginning and 61.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:19:00,925 INFO L168 Benchmark]: Boogie Procedure Inliner took 121.70 ms. Allocated memory is still 96.5 MB. Free memory was 61.1 MB in the beginning and 57.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:19:00,926 INFO L168 Benchmark]: Boogie Preprocessor took 96.96 ms. Allocated memory is still 96.5 MB. Free memory was 57.0 MB in the beginning and 54.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:19:00,926 INFO L168 Benchmark]: RCFGBuilder took 1171.11 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 54.0 MB in the beginning and 85.2 MB in the end (delta: -31.3 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:19:00,927 INFO L168 Benchmark]: BuchiAutomizer took 144509.00 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 84.6 MB in the beginning and 66.6 MB in the end (delta: 18.0 MB). Peak memory consumption was 88.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:19:00,928 INFO L168 Benchmark]: Witness Printer took 71.48 ms. Allocated memory is still 142.6 MB. Free memory was 66.6 MB in the beginning and 63.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:19:00,931 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85 ms. Allocated memory is still 96.5 MB. Free memory is still 52.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 512.22 ms. Allocated memory is still 96.5 MB. Free memory was 66.9 MB in the beginning and 61.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 121.70 ms. Allocated memory is still 96.5 MB. Free memory was 61.1 MB in the beginning and 57.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 96.96 ms. Allocated memory is still 96.5 MB. Free memory was 57.0 MB in the beginning and 54.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1171.11 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 54.0 MB in the beginning and 85.2 MB in the end (delta: -31.3 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 144509.00 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 84.6 MB in the beginning and 66.6 MB in the end (delta: 18.0 MB). Peak memory consumption was 88.0 MB. Max. memory is 16.1 GB. * Witness Printer took 71.48 ms. Allocated memory is still 142.6 MB. Free memory was 66.6 MB in the beginning and 63.6 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 687 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 144.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 143.5s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 850 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 687 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 666 SDtfs, 1255 SDslu, 1126 SDs, 0 SdLazy, 177 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI3 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: 433]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=21695} State at position 1 is {NULL=0, NULL=52866, NULL=0, NULL=21695, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3263f19=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bf76950=63, methaneLevelCritical=0, retValue_acc=1, retValue_acc=0, tmp=0, NULL=0, NULL=21697, tmp___1=0, NULL=52851, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@593316f7=0, NULL=82599, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cc0bca9=0, NULL=82595, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b67f55e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2dc1ce2d=0, NULL=0, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a75496d=0, tmp___0=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=52859, NULL=52865, NULL=0, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e60eb27=0, NULL=0, \result=1, NULL=82597, NULL=0, NULL=0, NULL=0, tmp=1, retValue_acc=1, NULL=52857, NULL=52854, NULL=52862, NULL=52850, head=0, NULL=0, NULL=0, tmp=0, NULL=52856, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cf85122=0, NULL=0, NULL=52860, NULL=52858, retValue_acc=0, NULL=52864, NULL=82596, tmp=1, tmp___0=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73f11193=0, NULL=0, NULL=52852, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5618a476=0, NULL=82598, switchedOnBeforeTS=0, NULL=52855, \result=0, NULL=52867, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, \result=0, NULL=0, NULL=0, NULL=0, NULL=82600, tmp___0=0, \result=0, NULL=0, NULL=82594, NULL=21696, tmp___2=63, splverifierCounter=0, NULL=0, NULL=0, NULL=52853, NULL=52863, NULL=52861, NULL=82593, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L500] int pumpRunning = 0; [L501] int systemActive = 1; [L724] int waterLevel = 1; [L725] int methaneLevelCritical = 0; [L818] int cleanupTimeShifts = 4; [L919] int switchedOnBeforeTS ; [L896] int retValue_acc ; [L897] int tmp ; [L994] int retValue_acc ; [L997] retValue_acc = 1 [L998] return (retValue_acc); [L903] tmp = valid_product() [L905] COND TRUE \read(tmp) [L924] switchedOnBeforeTS = 0 [L424] int splverifierCounter ; [L425] int tmp ; [L426] int tmp___0 ; [L427] int tmp___1 ; [L428] int tmp___2 ; [L431] splverifierCounter = 0 Loop: [L433] COND TRUE 1 [L435] COND TRUE splverifierCounter < 4 [L441] tmp = __VERIFIER_nondet_int() [L443] COND FALSE !(\read(tmp)) [L451] tmp___0 = __VERIFIER_nondet_int() [L453] COND FALSE !(\read(tmp___0)) [L461] tmp___2 = __VERIFIER_nondet_int() [L463] COND TRUE \read(tmp___2) [L718] systemActive = 1 [L636] int retValue_acc ; [L639] retValue_acc = pumpRunning [L640] return (retValue_acc); [L933] switchedOnBeforeTS = isPumpRunning() [L512] COND FALSE !(\read(pumpRunning)) [L519] COND TRUE \read(systemActive) [L567] int tmp ; [L570] COND FALSE !(\read(pumpRunning)) [L541] int tmp ; [L544] COND TRUE ! pumpRunning [L681] int retValue_acc ; [L682] int tmp ; [L683] int tmp___0 ; [L804] int retValue_acc ; [L807] COND TRUE waterLevel < 2 [L808] retValue_acc = 1 [L809] return (retValue_acc); [L687] tmp = isHighWaterSensorDry() [L689] COND TRUE \read(tmp) [L690] tmp___0 = 0 [L694] retValue_acc = tmp___0 [L695] return (retValue_acc); [L546] tmp = isHighWaterLevel() [L548] COND FALSE !(\read(tmp)) [L939] int tmp ; [L940] int tmp___0 ; [L795] int retValue_acc ; [L798] retValue_acc = waterLevel [L799] return (retValue_acc); [L944] tmp = getWaterLevel() [L946] COND TRUE tmp != 2 [L636] int retValue_acc ; [L639] retValue_acc = pumpRunning [L640] return (retValue_acc); [L948] tmp___0 = isPumpRunning() [L950] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...