./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product19.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 9c314d63250cd17d6a50b1f2df9a5a3ff1e733f7 ..................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-30f4e4a [2019-11-28 03:40:13,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:40:13,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:40:13,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:40:13,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:40:13,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:40:13,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:40:13,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:40:13,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:40:13,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:40:13,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:40:14,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:40:14,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:40:14,004 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:40:14,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:40:14,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:40:14,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:40:14,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:40:14,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:40:14,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:40:14,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:40:14,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:40:14,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:40:14,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:40:14,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:40:14,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:40:14,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:40:14,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:40:14,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:40:14,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:40:14,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:40:14,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:40:14,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:40:14,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:40:14,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:40:14,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:40:14,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:40:14,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:40:14,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:40:14,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:40:14,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:40:14,044 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:40:14,081 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:40:14,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:40:14,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:40:14,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:40:14,090 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:40:14,090 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:40:14,090 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:40:14,091 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:40:14,091 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:40:14,091 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:40:14,091 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:40:14,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:40:14,092 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:40:14,092 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:40:14,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:40:14,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:40:14,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:40:14,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:40:14,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:40:14,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:40:14,095 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:40:14,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:40:14,096 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:40:14,096 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:40:14,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:40:14,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:40:14,097 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:40:14,097 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:40:14,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:40:14,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:40:14,098 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:40:14,099 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:40:14,099 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 9c314d63250cd17d6a50b1f2df9a5a3ff1e733f7 [2019-11-28 03:40:14,447 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:40:14,462 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:40:14,466 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:40:14,468 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:40:14,468 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:40:14,469 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product19.cil.c [2019-11-28 03:40:14,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95bfc4fa1/0cdfbe7e982f4c0d9d98be85c01ed88f/FLAG03c568939 [2019-11-28 03:40:15,109 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:40:15,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product19.cil.c [2019-11-28 03:40:15,136 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95bfc4fa1/0cdfbe7e982f4c0d9d98be85c01ed88f/FLAG03c568939 [2019-11-28 03:40:15,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95bfc4fa1/0cdfbe7e982f4c0d9d98be85c01ed88f [2019-11-28 03:40:15,427 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:40:15,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:40:15,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:40:15,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:40:15,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:40:15,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:40:15" (1/1) ... [2019-11-28 03:40:15,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad64629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:15, skipping insertion in model container [2019-11-28 03:40:15,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:40:15" (1/1) ... [2019-11-28 03:40:15,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:40:15,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:40:15,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:40:15,949 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:40:16,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:40:16,096 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:40:16,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:16 WrapperNode [2019-11-28 03:40:16,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:40:16,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:40:16,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:40:16,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:40:16,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:16" (1/1) ... [2019-11-28 03:40:16,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:16" (1/1) ... [2019-11-28 03:40:16,167 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:40:16,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:40:16,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:40:16,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:40:16,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:16" (1/1) ... [2019-11-28 03:40:16,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:16" (1/1) ... [2019-11-28 03:40:16,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:16" (1/1) ... [2019-11-28 03:40:16,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:16" (1/1) ... [2019-11-28 03:40:16,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:16" (1/1) ... [2019-11-28 03:40:16,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:16" (1/1) ... [2019-11-28 03:40:16,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:16" (1/1) ... [2019-11-28 03:40:16,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:40:16,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:40:16,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:40:16,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:40:16,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 03:40:16,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:40:16,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 03:40:16,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:40:16,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:40:17,027 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:40:17,030 INFO L297 CfgBuilder]: Removed 114 assume(true) statements. [2019-11-28 03:40:17,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:40:17 BoogieIcfgContainer [2019-11-28 03:40:17,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:40:17,033 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:40:17,033 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:40:17,037 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:40:17,038 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:40:17,039 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:40:15" (1/3) ... [2019-11-28 03:40:17,040 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2bc08b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:40:17, skipping insertion in model container [2019-11-28 03:40:17,041 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:40:17,041 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:16" (2/3) ... [2019-11-28 03:40:17,042 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2bc08b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:40:17, skipping insertion in model container [2019-11-28 03:40:17,042 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:40:17,042 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:40:17" (3/3) ... [2019-11-28 03:40:17,045 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product19.cil.c [2019-11-28 03:40:17,093 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:40:17,094 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:40:17,094 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:40:17,094 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:40:17,094 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:40:17,095 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:40:17,095 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:40:17,095 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:40:17,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states. [2019-11-28 03:40:17,137 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2019-11-28 03:40:17,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:40:17,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:40:17,145 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:40:17,145 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:40:17,145 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:40:17,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states. [2019-11-28 03:40:17,152 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2019-11-28 03:40:17,153 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:40:17,153 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:40:17,154 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:40:17,154 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:40:17,159 INFO L794 eck$LassoCheckResult]: Stem: 43#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(77, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(101, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(116, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(104, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string63.base, #t~string63.offset, 1);call write~init~int(82, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(73, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(84, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 4 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(75, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 20#L-1true havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 4#L782true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 40#L790true main_#t~ret72 := valid_product_#res;main_~tmp~7 := main_#t~ret72;havoc main_#t~ret72; 71#L927true assume 0 != main_~tmp~7; 25#L903true ~switchedOnBeforeTS~0 := 0; 39#L801true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 16#L822-1true [2019-11-28 03:40:17,160 INFO L796 eck$LassoCheckResult]: Loop: 16#L822-1true assume !false; 62#L56true assume test_~splverifierCounter~0 < 4; 83#L57true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 24#L65true assume !(0 != test_~tmp~0); 22#L65-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 76#L75true assume !(0 != test_~tmp___0~0); 73#L75-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 58#L85true assume 0 != test_~tmp___2~0; 3#L91-1true havoc __utac_acc__Specification5_spec__2_#t~ret69;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 65#L217true __utac_acc__Specification5_spec__2_#t~ret69 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret69;havoc __utac_acc__Specification5_spec__2_#t~ret69; 13#L811true assume !(0 != ~pumpRunning~0); 52#L132true assume !(0 != ~systemActive~0); 44#L139true havoc __utac_acc__Specification5_spec__3_#t~ret70, __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;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; 45#L743true __utac_acc__Specification5_spec__3_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret70;havoc __utac_acc__Specification5_spec__3_#t~ret70; 11#L822true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 16#L822-1true [2019-11-28 03:40:17,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:40:17,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 03:40:17,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:40:17,177 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318018247] [2019-11-28 03:40:17,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:40:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:40:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:40:17,557 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:40:17,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:40:17,559 INFO L82 PathProgramCache]: Analyzing trace with hash -241953451, now seen corresponding path program 1 times [2019-11-28 03:40:17,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:40:17,559 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785544696] [2019-11-28 03:40:17,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:40:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:40:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:40:17,577 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:40:17,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:40:17,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1692071759, now seen corresponding path program 1 times [2019-11-28 03:40:17,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:40:17,579 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342557046] [2019-11-28 03:40:17,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:40:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:40:17,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:40:17,794 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342557046] [2019-11-28 03:40:17,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:40:17,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 03:40:17,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867680356] [2019-11-28 03:40:17,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:40:17,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 03:40:17,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 03:40:17,959 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 6 states. [2019-11-28 03:40:18,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:40:18,243 INFO L93 Difference]: Finished difference Result 217 states and 298 transitions. [2019-11-28 03:40:18,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 03:40:18,248 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 217 states and 298 transitions. [2019-11-28 03:40:18,267 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 139 [2019-11-28 03:40:18,279 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 217 states to 196 states and 277 transitions. [2019-11-28 03:40:18,282 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 196 [2019-11-28 03:40:18,285 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 196 [2019-11-28 03:40:18,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 196 states and 277 transitions. [2019-11-28 03:40:18,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:40:18,289 INFO L688 BuchiCegarLoop]: Abstraction has 196 states and 277 transitions. [2019-11-28 03:40:18,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states and 277 transitions. [2019-11-28 03:40:18,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 125. [2019-11-28 03:40:18,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-28 03:40:18,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 176 transitions. [2019-11-28 03:40:18,326 INFO L711 BuchiCegarLoop]: Abstraction has 125 states and 176 transitions. [2019-11-28 03:40:18,326 INFO L591 BuchiCegarLoop]: Abstraction has 125 states and 176 transitions. [2019-11-28 03:40:18,326 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:40:18,327 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 176 transitions. [2019-11-28 03:40:18,329 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2019-11-28 03:40:18,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:40:18,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:40:18,330 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:40:18,330 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:40:18,331 INFO L794 eck$LassoCheckResult]: Stem: 376#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(77, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(101, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(116, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(104, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string63.base, #t~string63.offset, 1);call write~init~int(82, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(73, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(84, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 4 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(75, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 349#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 320#L782 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 321#L790 main_#t~ret72 := valid_product_#res;main_~tmp~7 := main_#t~ret72;havoc main_#t~ret72; 373#L927 assume 0 != main_~tmp~7; 356#L903 ~switchedOnBeforeTS~0 := 0; 357#L801 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 333#L822-1 [2019-11-28 03:40:18,331 INFO L796 eck$LassoCheckResult]: Loop: 333#L822-1 assume !false; 342#L56 assume test_~splverifierCounter~0 < 4; 387#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 354#L65 assume !(0 != test_~tmp~0); 352#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 353#L75 assume !(0 != test_~tmp___0~0); 365#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 384#L85 assume 0 != test_~tmp___2~0; 318#L91-1 havoc __utac_acc__Specification5_spec__2_#t~ret69;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 319#L217 __utac_acc__Specification5_spec__2_#t~ret69 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret69;havoc __utac_acc__Specification5_spec__2_#t~ret69; 337#L811 assume !(0 != ~pumpRunning~0); 339#L132 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 369#L164 assume !(0 != ~pumpRunning~0); 341#L139 havoc __utac_acc__Specification5_spec__3_#t~ret70, __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;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; 377#L743 __utac_acc__Specification5_spec__3_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret70;havoc __utac_acc__Specification5_spec__3_#t~ret70; 331#L822 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 333#L822-1 [2019-11-28 03:40:18,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:40:18,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 03:40:18,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:40:18,332 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784064026] [2019-11-28 03:40:18,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:40:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:40:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:40:18,422 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:40:18,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:40:18,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1062384515, now seen corresponding path program 1 times [2019-11-28 03:40:18,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:40:18,424 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596087890] [2019-11-28 03:40:18,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:40:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:40:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:40:18,446 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:40:18,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:40:18,447 INFO L82 PathProgramCache]: Analyzing trace with hash 887623881, now seen corresponding path program 1 times [2019-11-28 03:40:18,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:40:18,448 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457045683] [2019-11-28 03:40:18,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:40:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:40:18,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:40:18,534 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457045683] [2019-11-28 03:40:18,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:40:18,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:40:18,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923411096] [2019-11-28 03:40:18,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:40:18,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 03:40:18,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 03:40:18,620 INFO L87 Difference]: Start difference. First operand 125 states and 176 transitions. cyclomatic complexity: 54 Second operand 5 states. [2019-11-28 03:40:18,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:40:18,818 INFO L93 Difference]: Finished difference Result 338 states and 468 transitions. [2019-11-28 03:40:18,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 03:40:18,820 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 338 states and 468 transitions. [2019-11-28 03:40:18,835 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 170 [2019-11-28 03:40:18,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 338 states to 338 states and 468 transitions. [2019-11-28 03:40:18,841 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 338 [2019-11-28 03:40:18,842 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 338 [2019-11-28 03:40:18,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 338 states and 468 transitions. [2019-11-28 03:40:18,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:40:18,849 INFO L688 BuchiCegarLoop]: Abstraction has 338 states and 468 transitions. [2019-11-28 03:40:18,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states and 468 transitions. [2019-11-28 03:40:18,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 243. [2019-11-28 03:40:18,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2019-11-28 03:40:18,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 331 transitions. [2019-11-28 03:40:18,883 INFO L711 BuchiCegarLoop]: Abstraction has 243 states and 331 transitions. [2019-11-28 03:40:18,883 INFO L591 BuchiCegarLoop]: Abstraction has 243 states and 331 transitions. [2019-11-28 03:40:18,884 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:40:18,884 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 243 states and 331 transitions. [2019-11-28 03:40:18,886 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 170 [2019-11-28 03:40:18,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:40:18,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:40:18,888 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:40:18,888 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:40:18,889 INFO L794 eck$LassoCheckResult]: Stem: 862#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(77, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(101, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(116, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(104, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string63.base, #t~string63.offset, 1);call write~init~int(82, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(73, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(84, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 4 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(75, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 830#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 799#L782 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 800#L790 main_#t~ret72 := valid_product_#res;main_~tmp~7 := main_#t~ret72;havoc main_#t~ret72; 858#L927 assume 0 != main_~tmp~7; 837#L903 ~switchedOnBeforeTS~0 := 0; 838#L801 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 857#L822-1 [2019-11-28 03:40:18,889 INFO L796 eck$LassoCheckResult]: Loop: 857#L822-1 assume !false; 937#L56 assume test_~splverifierCounter~0 < 4; 938#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 967#L65 assume !(0 != test_~tmp~0); 966#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 965#L75 assume !(0 != test_~tmp___0~0); 963#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 962#L85 assume 0 != test_~tmp___2~0; 806#L91-1 havoc __utac_acc__Specification5_spec__2_#t~ret69;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 959#L217 __utac_acc__Specification5_spec__2_#t~ret69 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret69;havoc __utac_acc__Specification5_spec__2_#t~ret69; 958#L811 assume !(0 != ~pumpRunning~0); 948#L132 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 929#L164 assume !(0 != ~pumpRunning~0); 946#L139 havoc __utac_acc__Specification5_spec__3_#t~ret70, __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;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; 945#L743 __utac_acc__Specification5_spec__3_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret70;havoc __utac_acc__Specification5_spec__3_#t~ret70; 944#L822 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 943#L217-1 __utac_acc__Specification5_spec__3_#t~ret71 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 942#L826 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 857#L822-1 [2019-11-28 03:40:18,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:40:18,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 03:40:18,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:40:18,890 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550018351] [2019-11-28 03:40:18,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:40:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:40:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:40:18,981 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:40:18,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:40:18,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1250711394, now seen corresponding path program 1 times [2019-11-28 03:40:18,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:40:18,984 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376022155] [2019-11-28 03:40:18,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:40:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:40:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:40:18,998 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:40:18,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:40:18,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1691956124, now seen corresponding path program 1 times [2019-11-28 03:40:19,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:40:19,000 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779752104] [2019-11-28 03:40:19,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:40:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:40:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:40:19,138 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:40:19,272 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2019-11-28 03:40:44,927 WARN L192 SmtUtils]: Spent 25.56 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 03:40:58,198 WARN L192 SmtUtils]: Spent 13.26 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 03:40:58,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:40:58 BoogieIcfgContainer [2019-11-28 03:40:58,270 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:40:58,270 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:40:58,271 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:40:58,271 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:40:58,271 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:40:17" (3/4) ... [2019-11-28 03:40:58,275 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:40:58,344 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:40:58,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:40:58,346 INFO L168 Benchmark]: Toolchain (without parser) took 42916.94 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 268.4 MB). Free memory was 960.4 MB in the beginning and 1.2 GB in the end (delta: -230.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:40:58,347 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:40:58,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.9 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -107.0 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:40:58,354 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:40:58,355 INFO L168 Benchmark]: Boogie Preprocessor took 44.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:40:58,356 INFO L168 Benchmark]: RCFGBuilder took 820.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 992.9 MB in the end (delta: 60.6 MB). Peak memory consumption was 60.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:40:58,356 INFO L168 Benchmark]: BuchiAutomizer took 41237.27 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 992.9 MB in the beginning and 1.2 GB in the end (delta: -197.6 MB). Peak memory consumption was 406.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:40:58,357 INFO L168 Benchmark]: Witness Printer took 73.76 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:40:58,364 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 664.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.9 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -107.0 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 820.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 992.9 MB in the end (delta: 60.6 MB). Peak memory consumption was 60.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 41237.27 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 992.9 MB in the beginning and 1.2 GB in the end (delta: -197.6 MB). Peak memory consumption was 406.2 MB. Max. memory is 11.5 GB. * Witness Printer took 73.76 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 243 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 41.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 40.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 166 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 243 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 278 SDtfs, 861 SDslu, 849 SDs, 0 SdLazy, 120 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 55]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2220} State at position 1 is {NULL=2236, NULL=0, NULL=2229, NULL=0, NULL=0, NULL=2220, NULL=2228, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ca26c7e=0, NULL=2244, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27456de7=64, NULL=2221, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14ddf2a4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d0ceeb9=0, NULL=0, NULL=0, NULL=2223, methaneLevelCritical=0, tmp=1, retValue_acc=1, NULL=0, NULL=2245, NULL=0, tmp___1=0, cleanupTimeShifts=4, tmp=0, switchedOnBeforeTS=0, NULL=2222, NULL=2240, NULL=2237, \result=0, NULL=2230, NULL=2239, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=2233, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, \result=1, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7820610a=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b27fc56=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a9f5ee6=0, NULL=2226, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c28be8d=0, NULL=2243, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, NULL=2224, NULL=2232, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@466f41e4=0, retValue_acc=1, tmp___2=64, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=2238, NULL=2241, tmp=0, head=0, retValue_acc=0, NULL=2242, NULL=2234, NULL=0, NULL=0, NULL=2235, NULL=2227, NULL=2225, NULL=2231} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L470] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L668] int waterLevel = 1; [L669] int methaneLevelCritical = 0; [L795] int switchedOnBeforeTS ; [L844] int cleanupTimeShifts = 4; [L918] int retValue_acc ; [L919] int tmp ; [L786] int retValue_acc ; [L789] retValue_acc = 1 [L790] return (retValue_acc); [L925] tmp = valid_product() [L927] COND TRUE \read(tmp) [L800] switchedOnBeforeTS = 0 [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 Loop: [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L213] int retValue_acc ; [L216] retValue_acc = pumpRunning [L217] return (retValue_acc); [L809] switchedOnBeforeTS = isPumpRunning() [L132] COND FALSE !(\read(pumpRunning)) [L139] COND TRUE \read(systemActive) [L161] int tmp ; [L164] COND FALSE !(\read(pumpRunning)) [L815] int tmp ; [L816] int tmp___0 ; [L739] int retValue_acc ; [L742] retValue_acc = waterLevel [L743] return (retValue_acc); [L820] tmp = getWaterLevel() [L822] COND TRUE tmp != 2 [L213] int retValue_acc ; [L216] retValue_acc = pumpRunning [L217] return (retValue_acc); [L824] tmp___0 = isPumpRunning() [L826] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...