./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product46.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c 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_product46.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 484c358b13fd8def6bfbf41b26d96fd32414391c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-11-28 21:14:13,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:14:13,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:14:13,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:14:13,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:14:13,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:14:13,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:14:13,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:14:13,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:14:13,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:14:13,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:14:13,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:14:13,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:14:13,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:14:13,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:14:13,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:14:13,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:14:13,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:14:13,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:14:13,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:14:13,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:14:13,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:14:13,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:14:13,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:14:13,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:14:13,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:14:13,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:14:13,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:14:13,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:14:13,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:14:13,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:14:13,099 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:14:13,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:14:13,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:14:13,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:14:13,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:14:13,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:14:13,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:14:13,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:14:13,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:14:13,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:14:13,107 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:14:13,148 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:14:13,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:14:13,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:14:13,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:14:13,151 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:14:13,151 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:14:13,154 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:14:13,154 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:14:13,154 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:14:13,155 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:14:13,155 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:14:13,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:14:13,155 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:14:13,156 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:14:13,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:14:13,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:14:13,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:14:13,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:14:13,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:14:13,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:14:13,159 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:14:13,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:14:13,159 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:14:13,160 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:14:13,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:14:13,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:14:13,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:14:13,161 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:14:13,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:14:13,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:14:13,162 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:14:13,163 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:14:13,165 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:14:13,165 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 -> 484c358b13fd8def6bfbf41b26d96fd32414391c [2019-11-28 21:14:13,502 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:14:13,527 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:14:13,530 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:14:13,532 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:14:13,532 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:14:13,533 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product46.cil.c [2019-11-28 21:14:13,609 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/699b0ace3/8b4bd8b6bd5a4a09a3895a54f9701a41/FLAG53448b7af [2019-11-28 21:14:14,111 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:14:14,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product46.cil.c [2019-11-28 21:14:14,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/699b0ace3/8b4bd8b6bd5a4a09a3895a54f9701a41/FLAG53448b7af [2019-11-28 21:14:14,435 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/699b0ace3/8b4bd8b6bd5a4a09a3895a54f9701a41 [2019-11-28 21:14:14,438 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:14:14,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:14:14,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:14:14,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:14:14,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:14:14,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:14:14" (1/1) ... [2019-11-28 21:14:14,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5596f513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:14, skipping insertion in model container [2019-11-28 21:14:14,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:14:14" (1/1) ... [2019-11-28 21:14:14,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:14:14,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:14:14,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:14:14,953 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:14:15,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:14:15,085 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:14:15,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:15 WrapperNode [2019-11-28 21:14:15,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:14:15,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:14:15,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:14:15,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:14:15,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:15" (1/1) ... [2019-11-28 21:14:15,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:15" (1/1) ... [2019-11-28 21:14:15,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:14:15,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:14:15,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:14:15,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:14:15,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:15" (1/1) ... [2019-11-28 21:14:15,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:15" (1/1) ... [2019-11-28 21:14:15,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:15" (1/1) ... [2019-11-28 21:14:15,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:15" (1/1) ... [2019-11-28 21:14:15,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:15" (1/1) ... [2019-11-28 21:14:15,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:15" (1/1) ... [2019-11-28 21:14:15,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:15" (1/1) ... [2019-11-28 21:14:15,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:14:15,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:14:15,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:14:15,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:14:15,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:15" (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 21:14:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:14:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:14:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:14:15,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:14:16,406 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:14:16,407 INFO L287 CfgBuilder]: Removed 208 assume(true) statements. [2019-11-28 21:14:16,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:14:16 BoogieIcfgContainer [2019-11-28 21:14:16,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:14:16,409 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:14:16,410 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:14:16,413 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:14:16,414 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:14:16,415 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:14:14" (1/3) ... [2019-11-28 21:14:16,416 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4efe6123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:14:16, skipping insertion in model container [2019-11-28 21:14:16,416 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:14:16,417 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:15" (2/3) ... [2019-11-28 21:14:16,417 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4efe6123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:14:16, skipping insertion in model container [2019-11-28 21:14:16,418 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:14:16,418 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:14:16" (3/3) ... [2019-11-28 21:14:16,420 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product46.cil.c [2019-11-28 21:14:16,468 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:14:16,468 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:14:16,468 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:14:16,469 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:14:16,469 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:14:16,469 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:14:16,469 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:14:16,469 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:14:16,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states. [2019-11-28 21:14:16,517 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2019-11-28 21:14:16,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:16,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:16,527 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:16,527 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:16,527 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:14:16,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states. [2019-11-28 21:14:16,536 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2019-11-28 21:14:16,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:16,536 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:16,537 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:16,538 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:16,543 INFO L794 eck$LassoCheckResult]: Stem: 114#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);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~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);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~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);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(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 7#L-1true havoc main_#res;havoc main_#t~ret3, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 91#L683true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 96#L691true main_#t~ret3 := valid_product_#res;main_~tmp~1 := main_#t~ret3;havoc main_#t~ret3; 28#L183true assume 0 != main_~tmp~1; 37#L155true ~switchedOnBeforeTS~0 := 0; 128#L49true havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 12#L70-1true [2019-11-28 21:14:16,544 INFO L796 eck$LassoCheckResult]: Loop: 12#L70-1true assume !false; 98#L925true assume test_~splverifierCounter~0 < 4; 24#L926true test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 55#L934true assume !(0 != test_~tmp~9); 58#L934-1true test_~tmp___0~2 := test_#t~nondet72;havoc test_#t~nondet72; 120#L944true assume !(0 != test_~tmp___0~2); 122#L944-1true test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 10#L954true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 20#L962-2true havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 34#L846true __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 14#L59true assume !(0 != ~pumpRunning~0); 125#L718true assume !(0 != ~systemActive~0); 47#L725true havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 62#L642true __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 16#L70true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 12#L70-1true [2019-11-28 21:14:16,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:16,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:14:16,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:16,559 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711120665] [2019-11-28 21:14:16,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:16,976 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:16,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:16,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1013654413, now seen corresponding path program 1 times [2019-11-28 21:14:16,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:16,980 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846809630] [2019-11-28 21:14:16,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:14:17,084 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 21:14:17,085 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846809630] [2019-11-28 21:14:17,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:14:17,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:14:17,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038539163] [2019-11-28 21:14:17,098 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:14:17,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:14:17,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:14:17,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:14:17,121 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 3 states. [2019-11-28 21:14:17,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:14:17,197 INFO L93 Difference]: Finished difference Result 135 states and 191 transitions. [2019-11-28 21:14:17,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:14:17,200 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 135 states and 191 transitions. [2019-11-28 21:14:17,212 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2019-11-28 21:14:17,219 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 135 states to 128 states and 183 transitions. [2019-11-28 21:14:17,221 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 128 [2019-11-28 21:14:17,222 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 128 [2019-11-28 21:14:17,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 183 transitions. [2019-11-28 21:14:17,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:14:17,224 INFO L688 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2019-11-28 21:14:17,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 183 transitions. [2019-11-28 21:14:17,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-11-28 21:14:17,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-11-28 21:14:17,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 183 transitions. [2019-11-28 21:14:17,266 INFO L711 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2019-11-28 21:14:17,266 INFO L591 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2019-11-28 21:14:17,267 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:14:17,267 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states and 183 transitions. [2019-11-28 21:14:17,269 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2019-11-28 21:14:17,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:17,270 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:17,271 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:17,271 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:17,272 INFO L794 eck$LassoCheckResult]: Stem: 398#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);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~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);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~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);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(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 287#L-1 havoc main_#res;havoc main_#t~ret3, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 288#L683 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 390#L691 main_#t~ret3 := valid_product_#res;main_~tmp~1 := main_#t~ret3;havoc main_#t~ret3; 328#L183 assume 0 != main_~tmp~1; 329#L155 ~switchedOnBeforeTS~0 := 0; 343#L49 havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 300#L70-1 [2019-11-28 21:14:17,272 INFO L796 eck$LassoCheckResult]: Loop: 300#L70-1 assume !false; 301#L925 assume test_~splverifierCounter~0 < 4; 323#L926 test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 324#L934 assume !(0 != test_~tmp~9); 290#L934-1 test_~tmp___0~2 := test_#t~nondet72;havoc test_#t~nondet72; 363#L944 assume !(0 != test_~tmp___0~2); 404#L944-1 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 294#L954 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 296#L962-2 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 317#L846 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 305#L59 assume !(0 != ~pumpRunning~0); 306#L718 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 399#L776 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 308#L750-1 assume !(0 == ~pumpRunning~0); 303#L725 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 355#L642 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 310#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 300#L70-1 [2019-11-28 21:14:17,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:17,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:14:17,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:17,274 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728328216] [2019-11-28 21:14:17,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:17,402 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:17,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:17,403 INFO L82 PathProgramCache]: Analyzing trace with hash 378995151, now seen corresponding path program 1 times [2019-11-28 21:14:17,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:17,404 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103827265] [2019-11-28 21:14:17,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:14:17,432 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 21:14:17,434 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103827265] [2019-11-28 21:14:17,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:14:17,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:14:17,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029427821] [2019-11-28 21:14:17,435 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:14:17,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:14:17,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:14:17,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:14:17,436 INFO L87 Difference]: Start difference. First operand 128 states and 183 transitions. cyclomatic complexity: 57 Second operand 3 states. [2019-11-28 21:14:17,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:14:17,579 INFO L93 Difference]: Finished difference Result 177 states and 242 transitions. [2019-11-28 21:14:17,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:14:17,580 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 177 states and 242 transitions. [2019-11-28 21:14:17,583 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2019-11-28 21:14:17,586 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 177 states to 177 states and 242 transitions. [2019-11-28 21:14:17,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2019-11-28 21:14:17,587 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2019-11-28 21:14:17,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 242 transitions. [2019-11-28 21:14:17,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:14:17,589 INFO L688 BuchiCegarLoop]: Abstraction has 177 states and 242 transitions. [2019-11-28 21:14:17,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 242 transitions. [2019-11-28 21:14:17,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2019-11-28 21:14:17,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2019-11-28 21:14:17,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 242 transitions. [2019-11-28 21:14:17,601 INFO L711 BuchiCegarLoop]: Abstraction has 177 states and 242 transitions. [2019-11-28 21:14:17,602 INFO L591 BuchiCegarLoop]: Abstraction has 177 states and 242 transitions. [2019-11-28 21:14:17,602 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:14:17,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 242 transitions. [2019-11-28 21:14:17,604 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2019-11-28 21:14:17,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:17,605 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:17,606 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:17,606 INFO L850 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] [2019-11-28 21:14:17,606 INFO L794 eck$LassoCheckResult]: Stem: 719#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);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~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);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~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);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(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 598#L-1 havoc main_#res;havoc main_#t~ret3, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 599#L683 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 710#L691 main_#t~ret3 := valid_product_#res;main_~tmp~1 := main_#t~ret3;havoc main_#t~ret3; 638#L183 assume 0 != main_~tmp~1; 639#L155 ~switchedOnBeforeTS~0 := 0; 654#L49 havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 612#L70-1 [2019-11-28 21:14:17,607 INFO L796 eck$LassoCheckResult]: Loop: 612#L70-1 assume !false; 613#L925 assume test_~splverifierCounter~0 < 4; 716#L926 test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 745#L934 assume !(0 != test_~tmp~9); 742#L934-1 test_~tmp___0~2 := test_#t~nondet72;havoc test_#t~nondet72; 740#L944 assume !(0 != test_~tmp___0~2); 737#L944-1 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 735#L954 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 732#L962-2 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 731#L846 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 614#L59 assume !(0 != ~pumpRunning~0); 615#L718 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 720#L776 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 616#L750-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret70, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 617#L650-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 686#L655-1 isHighWaterLevel_#t~ret70 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret70;havoc isHighWaterLevel_#t~ret70; 699#L895-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 700#L895-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 647#L901-1 processEnvironment__wrappee__methaneQuery_#t~ret50 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret50;havoc processEnvironment__wrappee__methaneQuery_#t~ret50; 648#L754-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 660#L725 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 667#L642 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 618#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 612#L70-1 [2019-11-28 21:14:17,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:17,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 21:14:17,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:17,609 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009653093] [2019-11-28 21:14:17,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:17,747 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:17,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:17,748 INFO L82 PathProgramCache]: Analyzing trace with hash 490241563, now seen corresponding path program 1 times [2019-11-28 21:14:17,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:17,749 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773121558] [2019-11-28 21:14:17,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:14:17,812 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 21:14:17,812 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773121558] [2019-11-28 21:14:17,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:14:17,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 21:14:17,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987009239] [2019-11-28 21:14:17,814 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:14:17,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:14:17,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:14:17,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:14:17,814 INFO L87 Difference]: Start difference. First operand 177 states and 242 transitions. cyclomatic complexity: 67 Second operand 5 states. [2019-11-28 21:14:18,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:14:18,085 INFO L93 Difference]: Finished difference Result 497 states and 667 transitions. [2019-11-28 21:14:18,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 21:14:18,086 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 497 states and 667 transitions. [2019-11-28 21:14:18,092 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 319 [2019-11-28 21:14:18,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 497 states to 497 states and 667 transitions. [2019-11-28 21:14:18,098 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 497 [2019-11-28 21:14:18,099 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 497 [2019-11-28 21:14:18,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 497 states and 667 transitions. [2019-11-28 21:14:18,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:14:18,103 INFO L688 BuchiCegarLoop]: Abstraction has 497 states and 667 transitions. [2019-11-28 21:14:18,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states and 667 transitions. [2019-11-28 21:14:18,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 347. [2019-11-28 21:14:18,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-11-28 21:14:18,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 463 transitions. [2019-11-28 21:14:18,148 INFO L711 BuchiCegarLoop]: Abstraction has 347 states and 463 transitions. [2019-11-28 21:14:18,148 INFO L591 BuchiCegarLoop]: Abstraction has 347 states and 463 transitions. [2019-11-28 21:14:18,148 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 21:14:18,148 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 347 states and 463 transitions. [2019-11-28 21:14:18,157 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 244 [2019-11-28 21:14:18,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:18,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:18,160 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:18,160 INFO L850 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] [2019-11-28 21:14:18,161 INFO L794 eck$LassoCheckResult]: Stem: 1413#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);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~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);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~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);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(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1288#L-1 havoc main_#res;havoc main_#t~ret3, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 1289#L683 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1402#L691 main_#t~ret3 := valid_product_#res;main_~tmp~1 := main_#t~ret3;havoc main_#t~ret3; 1329#L183 assume 0 != main_~tmp~1; 1330#L155 ~switchedOnBeforeTS~0 := 0; 1345#L49 havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1302#L70-1 [2019-11-28 21:14:18,161 INFO L796 eck$LassoCheckResult]: Loop: 1302#L70-1 assume !false; 1303#L925 assume test_~splverifierCounter~0 < 4; 1408#L926 test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 1624#L934 assume !(0 != test_~tmp~9); 1623#L934-1 test_~tmp___0~2 := test_#t~nondet72;havoc test_#t~nondet72; 1420#L944 assume !(0 != test_~tmp___0~2); 1422#L944-1 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 1294#L954 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1296#L962-2 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 1315#L846 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 1304#L59 assume !(0 != ~pumpRunning~0); 1305#L718 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1414#L776 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 1306#L750-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret70, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1307#L650-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1377#L655-1 isHighWaterLevel_#t~ret70 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret70;havoc isHighWaterLevel_#t~ret70; 1389#L895-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1390#L895-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 1337#L901-1 processEnvironment__wrappee__methaneQuery_#t~ret50 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret50;havoc processEnvironment__wrappee__methaneQuery_#t~ret50; 1338#L754-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 1351#L725 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1358#L642 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 1308#L70 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 1309#L846-1 __utac_acc__Specification5_spec__3_#t~ret2 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 1346#L74 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 1302#L70-1 [2019-11-28 21:14:18,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:18,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-28 21:14:18,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:18,162 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072162023] [2019-11-28 21:14:18,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:18,340 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:18,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:18,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1324272170, now seen corresponding path program 1 times [2019-11-28 21:14:18,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:18,342 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245077689] [2019-11-28 21:14:18,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:18,365 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:18,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:18,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1387698352, now seen corresponding path program 1 times [2019-11-28 21:14:18,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:18,366 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538030410] [2019-11-28 21:14:18,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:18,473 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:18,680 WARN L192 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-11-28 21:14:48,026 WARN L192 SmtUtils]: Spent 29.25 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:15:02,609 WARN L192 SmtUtils]: Spent 14.57 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:15:02,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:15:02 BoogieIcfgContainer [2019-11-28 21:15:02,718 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:15:02,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:15:02,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:15:02,719 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:15:02,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:14:16" (3/4) ... [2019-11-28 21:15:02,724 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:15:02,826 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:15:02,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:15:02,828 INFO L168 Benchmark]: Toolchain (without parser) took 48388.11 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 299.9 MB). Free memory was 956.3 MB in the beginning and 1.2 GB in the end (delta: -222.6 MB). Peak memory consumption was 77.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:02,831 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:15:02,832 INFO L168 Benchmark]: CACSL2BoogieTranslator took 647.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -143.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:02,833 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:02,833 INFO L168 Benchmark]: Boogie Preprocessor took 60.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:15:02,837 INFO L168 Benchmark]: RCFGBuilder took 1179.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.4 MB). Peak memory consumption was 72.4 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:02,838 INFO L168 Benchmark]: BuchiAutomizer took 46308.80 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -158.0 MB). Peak memory consumption was 383.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:02,841 INFO L168 Benchmark]: Witness Printer took 107.85 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2019-11-28 21:15:02,848 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 647.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -143.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 79.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1179.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.4 MB). Peak memory consumption was 72.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 46308.80 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -158.0 MB). Peak memory consumption was 383.1 MB. Max. memory is 11.5 GB. * Witness Printer took 107.85 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 24 B). Peak memory consumption was 24 B. 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 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 347 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 46.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 45.4s. Construction of modules took 0.2s. 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 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 150 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 347 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 624 SDtfs, 927 SDslu, 651 SDs, 0 SdLazy, 122 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 924]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4291} State at position 1 is {NULL=0, NULL=4303, NULL=0, retValue_acc=0, NULL=0, NULL=4291, NULL=4295, NULL=0, NULL=0, NULL=0, NULL=4313, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25b3ff25=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20320b17=0, NULL=0, NULL=0, NULL=4294, NULL=0, tmp___1=0, tmp=0, tmp=1, NULL=4296, NULL=4302, retValue_acc=0, cleanupTimeShifts=4, NULL=4299, switchedOnBeforeTS=0, NULL=4309, NULL=4301, NULL=4306, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@167315a2=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=4298, \result=1, NULL=0, \result=0, NULL=4305, NULL=0, NULL=0, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=4315, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@333c0a3e=0, NULL=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=4304, \result=1, NULL=4307, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31572a52=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bc81ad1=60, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21502a6d=0, NULL=4316, NULL=4314, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ed159ae=0, NULL=4292, retValue_acc=1, retValue_acc=0, tmp=1, tmp___2=60, tmp___0=0, NULL=4300, retValue_acc=1, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@696c550f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44dc0302=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@187c1bdc=0, NULL=4312, head=0, NULL=0, NULL=4293, NULL=0, tmp=0, NULL=4297, NULL=4310, NULL=0, NULL=0, NULL=4308, NULL=0, NULL=4311, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L43] int switchedOnBeforeTS ; [L92] int cleanupTimeShifts = 4; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L567] int waterLevel = 1; [L568] int methaneLevelCritical = 0; [L708] int pumpRunning = 0; [L709] int systemActive = 1; [L174] int retValue_acc ; [L175] int tmp ; [L687] int retValue_acc ; [L690] retValue_acc = 1 [L691] return (retValue_acc); [L181] tmp = valid_product() [L183] COND TRUE \read(tmp) [L48] switchedOnBeforeTS = 0 [L915] int splverifierCounter ; [L916] int tmp ; [L917] int tmp___0 ; [L918] int tmp___1 ; [L919] int tmp___2 ; [L922] splverifierCounter = 0 Loop: [L924] COND TRUE 1 [L926] COND TRUE splverifierCounter < 4 [L932] tmp = __VERIFIER_nondet_int() [L934] COND FALSE !(\read(tmp)) [L942] tmp___0 = __VERIFIER_nondet_int() [L944] COND FALSE !(\read(tmp___0)) [L952] tmp___2 = __VERIFIER_nondet_int() [L954] COND TRUE \read(tmp___2) [L909] systemActive = 1 [L842] int retValue_acc ; [L845] retValue_acc = pumpRunning [L846] return (retValue_acc); [L57] switchedOnBeforeTS = isPumpRunning() [L718] COND FALSE !(\read(pumpRunning)) [L725] COND TRUE \read(systemActive) [L773] int tmp ; [L776] COND FALSE !(\read(pumpRunning)) [L747] int tmp ; [L750] COND TRUE ! pumpRunning [L887] int retValue_acc ; [L888] int tmp ; [L889] int tmp___0 ; [L647] int retValue_acc ; [L650] COND TRUE waterLevel < 2 [L651] retValue_acc = 1 [L652] return (retValue_acc); [L893] tmp = isHighWaterSensorDry() [L895] COND TRUE \read(tmp) [L896] tmp___0 = 0 [L900] retValue_acc = tmp___0 [L901] return (retValue_acc); [L752] tmp = isHighWaterLevel() [L754] COND FALSE !(\read(tmp)) [L63] int tmp ; [L64] int tmp___0 ; [L638] int retValue_acc ; [L641] retValue_acc = waterLevel [L642] return (retValue_acc); [L68] tmp = getWaterLevel() [L70] COND TRUE tmp != 2 [L842] int retValue_acc ; [L845] retValue_acc = pumpRunning [L846] return (retValue_acc); [L72] tmp___0 = isPumpRunning() [L74] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...