./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product55_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5daf6c29-95ca-4133-8817-fcf3cc5c4f56/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5daf6c29-95ca-4133-8817-fcf3cc5c4f56/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5daf6c29-95ca-4133-8817-fcf3cc5c4f56/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5daf6c29-95ca-4133-8817-fcf3cc5c4f56/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product55_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5daf6c29-95ca-4133-8817-fcf3cc5c4f56/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5daf6c29-95ca-4133-8817-fcf3cc5c4f56/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 548cbaf589264b5429347049095271c63f36d598 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-01 19:24:36,363 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 19:24:36,364 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 19:24:36,370 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 19:24:36,371 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 19:24:36,371 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 19:24:36,372 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 19:24:36,373 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 19:24:36,374 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 19:24:36,375 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 19:24:36,375 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 19:24:36,376 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 19:24:36,376 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 19:24:36,377 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 19:24:36,378 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 19:24:36,378 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 19:24:36,379 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 19:24:36,380 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 19:24:36,381 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 19:24:36,382 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 19:24:36,383 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 19:24:36,384 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 19:24:36,385 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 19:24:36,386 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 19:24:36,386 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 19:24:36,386 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 19:24:36,387 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 19:24:36,388 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 19:24:36,388 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 19:24:36,389 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 19:24:36,389 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 19:24:36,389 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 19:24:36,390 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 19:24:36,390 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 19:24:36,390 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 19:24:36,391 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 19:24:36,391 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5daf6c29-95ca-4133-8817-fcf3cc5c4f56/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-01 19:24:36,400 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 19:24:36,400 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 19:24:36,401 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 19:24:36,401 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 19:24:36,401 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 19:24:36,401 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-01 19:24:36,401 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-01 19:24:36,402 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-01 19:24:36,402 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-01 19:24:36,402 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-01 19:24:36,402 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-01 19:24:36,402 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 19:24:36,402 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 19:24:36,402 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 19:24:36,403 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 19:24:36,403 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 19:24:36,403 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 19:24:36,403 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-01 19:24:36,403 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-01 19:24:36,403 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-01 19:24:36,403 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 19:24:36,404 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 19:24:36,404 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-01 19:24:36,404 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 19:24:36,404 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-01 19:24:36,404 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 19:24:36,404 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 19:24:36,404 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-01 19:24:36,404 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 19:24:36,405 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 19:24:36,405 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-01 19:24:36,405 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-01 19:24:36,406 INFO L133 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_5daf6c29-95ca-4133-8817-fcf3cc5c4f56/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 548cbaf589264b5429347049095271c63f36d598 [2018-12-01 19:24:36,429 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 19:24:36,437 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 19:24:36,440 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 19:24:36,441 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 19:24:36,441 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 19:24:36,442 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5daf6c29-95ca-4133-8817-fcf3cc5c4f56/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product55_true-unreach-call_false-termination.cil.c [2018-12-01 19:24:36,484 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5daf6c29-95ca-4133-8817-fcf3cc5c4f56/bin-2019/uautomizer/data/7646dacb6/d569edfea74d48ef9974abca4576013f/FLAG2e0b97ca3 [2018-12-01 19:24:36,950 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 19:24:36,951 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5daf6c29-95ca-4133-8817-fcf3cc5c4f56/sv-benchmarks/c/product-lines/minepump_spec5_product55_true-unreach-call_false-termination.cil.c [2018-12-01 19:24:36,959 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5daf6c29-95ca-4133-8817-fcf3cc5c4f56/bin-2019/uautomizer/data/7646dacb6/d569edfea74d48ef9974abca4576013f/FLAG2e0b97ca3 [2018-12-01 19:24:36,969 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5daf6c29-95ca-4133-8817-fcf3cc5c4f56/bin-2019/uautomizer/data/7646dacb6/d569edfea74d48ef9974abca4576013f [2018-12-01 19:24:36,971 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 19:24:36,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 19:24:36,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 19:24:36,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 19:24:36,975 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 19:24:36,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 07:24:36" (1/1) ... [2018-12-01 19:24:36,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354f5439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:36, skipping insertion in model container [2018-12-01 19:24:36,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 07:24:36" (1/1) ... [2018-12-01 19:24:36,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 19:24:37,011 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 19:24:37,174 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 19:24:37,213 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 19:24:37,252 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 19:24:37,268 INFO L195 MainTranslator]: Completed translation [2018-12-01 19:24:37,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:37 WrapperNode [2018-12-01 19:24:37,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 19:24:37,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 19:24:37,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 19:24:37,269 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 19:24:37,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:37" (1/1) ... [2018-12-01 19:24:37,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:37" (1/1) ... [2018-12-01 19:24:37,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 19:24:37,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 19:24:37,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 19:24:37,308 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 19:24:37,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:37" (1/1) ... [2018-12-01 19:24:37,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:37" (1/1) ... [2018-12-01 19:24:37,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:37" (1/1) ... [2018-12-01 19:24:37,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:37" (1/1) ... [2018-12-01 19:24:37,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:37" (1/1) ... [2018-12-01 19:24:37,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:37" (1/1) ... [2018-12-01 19:24:37,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:37" (1/1) ... [2018-12-01 19:24:37,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 19:24:37,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 19:24:37,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 19:24:37,336 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 19:24:37,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5daf6c29-95ca-4133-8817-fcf3cc5c4f56/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 19:24:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 19:24:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-01 19:24:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 19:24:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 19:24:37,838 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 19:24:37,838 INFO L280 CfgBuilder]: Removed 294 assue(true) statements. [2018-12-01 19:24:37,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:24:37 BoogieIcfgContainer [2018-12-01 19:24:37,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 19:24:37,839 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-01 19:24:37,839 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-01 19:24:37,841 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-01 19:24:37,841 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 19:24:37,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 07:24:36" (1/3) ... [2018-12-01 19:24:37,842 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2382892c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 07:24:37, skipping insertion in model container [2018-12-01 19:24:37,842 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 19:24:37,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:37" (2/3) ... [2018-12-01 19:24:37,843 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2382892c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 07:24:37, skipping insertion in model container [2018-12-01 19:24:37,843 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 19:24:37,843 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:24:37" (3/3) ... [2018-12-01 19:24:37,844 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product55_true-unreach-call_false-termination.cil.c [2018-12-01 19:24:37,878 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 19:24:37,879 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-01 19:24:37,879 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-01 19:24:37,879 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-01 19:24:37,879 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 19:24:37,879 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 19:24:37,879 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-01 19:24:37,879 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 19:24:37,880 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-01 19:24:37,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 197 states. [2018-12-01 19:24:37,915 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 129 [2018-12-01 19:24:37,915 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 19:24:37,915 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 19:24:37,920 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:24:37,921 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:24:37,921 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-01 19:24:37,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 197 states. [2018-12-01 19:24:37,925 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 129 [2018-12-01 19:24:37,925 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 19:24:37,925 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 19:24:37,926 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:24:37,926 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:24:37,929 INFO L794 eck$LassoCheckResult]: Stem: 80#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string42.base, #t~string42.offset := #Ultimate.alloc(13);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(77, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(101, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(116, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(104, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string46.base, #t~string46.offset, 1);call write~init~int(82, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(73, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(84, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 4 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(75, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 1 + #t~string50.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string56.base, #t~string56.offset := #Ultimate.alloc(13);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~switchedOnBeforeTS~0 := 0; 12#L-1true havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 79#L534true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 167#L542true main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 170#L498true assume 0 != main_~tmp~3; 114#L469true ~switchedOnBeforeTS~0 := 0; 81#L985true havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 33#L1006-1true [2018-12-01 19:24:37,929 INFO L796 eck$LassoCheckResult]: Loop: 33#L1006-1true assume !false; 111#L568true assume test_~splverifierCounter~0 < 4; 199#L569true test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 8#L577true assume !(0 != test_~tmp~4); 11#L577-1true test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 73#L587true assume !(0 != test_~tmp___0~0); 74#L587-1true test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 192#L597true assume 0 != test_~tmp___2~0; 161#L603-1true havoc __utac_acc__Specification5_spec__2_#t~ret73;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 43#L885true __utac_acc__Specification5_spec__2_#t~ret73 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret73;havoc __utac_acc__Specification5_spec__2_#t~ret73; 30#L995true assume !(0 != ~pumpRunning~0); 88#L748true assume !(0 != ~systemActive~0); 121#L755true havoc __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_#t~ret75, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 76#L705true __utac_acc__Specification5_spec__3_#t~ret74 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret74;havoc __utac_acc__Specification5_spec__3_#t~ret74; 29#L1006true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 33#L1006-1true [2018-12-01 19:24:37,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:24:37,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2018-12-01 19:24:37,935 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 19:24:37,935 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 19:24:37,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:37,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:24:37,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 19:24:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 19:24:38,060 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:24:38,060 INFO L82 PathProgramCache]: Analyzing trace with hash -236750955, now seen corresponding path program 1 times [2018-12-01 19:24:38,060 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 19:24:38,061 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 19:24:38,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:24:38,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 19:24:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 19:24:38,071 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:24:38,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1697274255, now seen corresponding path program 1 times [2018-12-01 19:24:38,071 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 19:24:38,071 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 19:24:38,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:24:38,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:24:38,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:24:38,148 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 19:24:38,148 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 19:24:38,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 19:24:38,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-01 19:24:38,211 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 6 states. [2018-12-01 19:24:38,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:24:38,315 INFO L93 Difference]: Finished difference Result 445 states and 652 transitions. [2018-12-01 19:24:38,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 19:24:38,318 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 445 states and 652 transitions. [2018-12-01 19:24:38,324 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 291 [2018-12-01 19:24:38,331 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 445 states to 424 states and 631 transitions. [2018-12-01 19:24:38,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 424 [2018-12-01 19:24:38,334 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 424 [2018-12-01 19:24:38,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 424 states and 631 transitions. [2018-12-01 19:24:38,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 19:24:38,336 INFO L705 BuchiCegarLoop]: Abstraction has 424 states and 631 transitions. [2018-12-01 19:24:38,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states and 631 transitions. [2018-12-01 19:24:38,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 239. [2018-12-01 19:24:38,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2018-12-01 19:24:38,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 353 transitions. [2018-12-01 19:24:38,367 INFO L728 BuchiCegarLoop]: Abstraction has 239 states and 353 transitions. [2018-12-01 19:24:38,367 INFO L608 BuchiCegarLoop]: Abstraction has 239 states and 353 transitions. [2018-12-01 19:24:38,368 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-01 19:24:38,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 239 states and 353 transitions. [2018-12-01 19:24:38,370 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 164 [2018-12-01 19:24:38,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 19:24:38,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 19:24:38,371 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:24:38,371 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:24:38,371 INFO L794 eck$LassoCheckResult]: Stem: 845#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string42.base, #t~string42.offset := #Ultimate.alloc(13);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(77, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(101, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(116, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(104, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string46.base, #t~string46.offset, 1);call write~init~int(82, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(73, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(84, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 4 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(75, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 1 + #t~string50.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string56.base, #t~string56.offset := #Ultimate.alloc(13);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~switchedOnBeforeTS~0 := 0; 676#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 677#L534 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 843#L542 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 844#L498 assume 0 != main_~tmp~3; 793#L469 ~switchedOnBeforeTS~0 := 0; 794#L985 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 712#L1006-1 [2018-12-01 19:24:38,371 INFO L796 eck$LassoCheckResult]: Loop: 712#L1006-1 assume !false; 721#L568 assume test_~splverifierCounter~0 < 4; 786#L569 test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 668#L577 assume !(0 != test_~tmp~4); 670#L577-1 test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 675#L587 assume !(0 != test_~tmp___0~0); 819#L587-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 823#L597 assume 0 != test_~tmp___2~0; 839#L603-1 havoc __utac_acc__Specification5_spec__2_#t~ret73;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 748#L885 __utac_acc__Specification5_spec__2_#t~ret73 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret73;havoc __utac_acc__Specification5_spec__2_#t~ret73; 713#L995 assume !(0 != ~pumpRunning~0); 715#L748 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret53, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 821#L832 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret52, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 822#L806-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret51, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 754#L780-3 assume !(0 == ~pumpRunning~0); 755#L755 havoc __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_#t~ret75, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 804#L705 __utac_acc__Specification5_spec__3_#t~ret74 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret74;havoc __utac_acc__Specification5_spec__3_#t~ret74; 711#L1006 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 712#L1006-1 [2018-12-01 19:24:38,372 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:24:38,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2018-12-01 19:24:38,372 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 19:24:38,372 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 19:24:38,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:24:38,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 19:24:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 19:24:38,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:24:38,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1192194302, now seen corresponding path program 1 times [2018-12-01 19:24:38,412 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 19:24:38,412 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 19:24:38,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,413 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 19:24:38,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:24:38,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:24:38,424 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 19:24:38,424 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 19:24:38,424 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 19:24:38,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 19:24:38,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 19:24:38,425 INFO L87 Difference]: Start difference. First operand 239 states and 353 transitions. cyclomatic complexity: 117 Second operand 3 states. [2018-12-01 19:24:38,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:24:38,506 INFO L93 Difference]: Finished difference Result 250 states and 344 transitions. [2018-12-01 19:24:38,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 19:24:38,506 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 250 states and 344 transitions. [2018-12-01 19:24:38,508 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2018-12-01 19:24:38,509 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 250 states to 250 states and 344 transitions. [2018-12-01 19:24:38,509 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 250 [2018-12-01 19:24:38,509 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 250 [2018-12-01 19:24:38,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 250 states and 344 transitions. [2018-12-01 19:24:38,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 19:24:38,510 INFO L705 BuchiCegarLoop]: Abstraction has 250 states and 344 transitions. [2018-12-01 19:24:38,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states and 344 transitions. [2018-12-01 19:24:38,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2018-12-01 19:24:38,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-12-01 19:24:38,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 344 transitions. [2018-12-01 19:24:38,516 INFO L728 BuchiCegarLoop]: Abstraction has 250 states and 344 transitions. [2018-12-01 19:24:38,516 INFO L608 BuchiCegarLoop]: Abstraction has 250 states and 344 transitions. [2018-12-01 19:24:38,516 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-01 19:24:38,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 250 states and 344 transitions. [2018-12-01 19:24:38,517 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2018-12-01 19:24:38,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 19:24:38,517 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 19:24:38,518 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:24:38,518 INFO L867 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] [2018-12-01 19:24:38,518 INFO L794 eck$LassoCheckResult]: Stem: 1317#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string42.base, #t~string42.offset := #Ultimate.alloc(13);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(77, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(101, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(116, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(104, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string46.base, #t~string46.offset, 1);call write~init~int(82, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(73, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(84, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 4 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(75, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 1 + #t~string50.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string56.base, #t~string56.offset := #Ultimate.alloc(13);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~switchedOnBeforeTS~0 := 0; 1171#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 1172#L534 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1315#L542 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 1316#L498 assume 0 != main_~tmp~3; 1261#L469 ~switchedOnBeforeTS~0 := 0; 1262#L985 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1320#L1006-1 [2018-12-01 19:24:38,518 INFO L796 eck$LassoCheckResult]: Loop: 1320#L1006-1 assume !false; 1253#L568 assume test_~splverifierCounter~0 < 4; 1254#L569 test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 1161#L577 assume !(0 != test_~tmp~4); 1163#L577-1 test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 1168#L587 assume !(0 != test_~tmp___0~0); 1288#L587-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 1372#L597 assume 0 != test_~tmp___2~0; 1371#L603-1 havoc __utac_acc__Specification5_spec__2_#t~ret73;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 1370#L885 __utac_acc__Specification5_spec__2_#t~ret73 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret73;havoc __utac_acc__Specification5_spec__2_#t~ret73; 1203#L995 assume !(0 != ~pumpRunning~0); 1204#L748 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret53, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1290#L832 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret52, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 1291#L806-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret51, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1233#L780-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret71, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1234#L713-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1311#L718-3 isHighWaterLevel_#t~ret71 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret71;havoc isHighWaterLevel_#t~ret71; 1240#L934-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1241#L934-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1177#L940-3 processEnvironment__wrappee__highWaterSensor_#t~ret51 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret51;havoc processEnvironment__wrappee__highWaterSensor_#t~ret51; 1178#L784-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 1295#L755 havoc __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_#t~ret75, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 1387#L705 __utac_acc__Specification5_spec__3_#t~ret74 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret74;havoc __utac_acc__Specification5_spec__3_#t~ret74; 1386#L1006 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 1320#L1006-1 [2018-12-01 19:24:38,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:24:38,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2018-12-01 19:24:38,518 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 19:24:38,518 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 19:24:38,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:24:38,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 19:24:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 19:24:38,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:24:38,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1771616150, now seen corresponding path program 1 times [2018-12-01 19:24:38,544 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 19:24:38,544 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 19:24:38,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,545 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 19:24:38,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:24:38,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:24:38,566 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 19:24:38,566 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-01 19:24:38,566 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 19:24:38,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 19:24:38,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 19:24:38,566 INFO L87 Difference]: Start difference. First operand 250 states and 344 transitions. cyclomatic complexity: 97 Second operand 5 states. [2018-12-01 19:24:38,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:24:38,710 INFO L93 Difference]: Finished difference Result 696 states and 937 transitions. [2018-12-01 19:24:38,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 19:24:38,711 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 696 states and 937 transitions. [2018-12-01 19:24:38,714 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 457 [2018-12-01 19:24:38,716 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 696 states to 696 states and 937 transitions. [2018-12-01 19:24:38,716 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 696 [2018-12-01 19:24:38,716 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 696 [2018-12-01 19:24:38,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 696 states and 937 transitions. [2018-12-01 19:24:38,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 19:24:38,717 INFO L705 BuchiCegarLoop]: Abstraction has 696 states and 937 transitions. [2018-12-01 19:24:38,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states and 937 transitions. [2018-12-01 19:24:38,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 493. [2018-12-01 19:24:38,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2018-12-01 19:24:38,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 660 transitions. [2018-12-01 19:24:38,728 INFO L728 BuchiCegarLoop]: Abstraction has 493 states and 660 transitions. [2018-12-01 19:24:38,728 INFO L608 BuchiCegarLoop]: Abstraction has 493 states and 660 transitions. [2018-12-01 19:24:38,728 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-01 19:24:38,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 493 states and 660 transitions. [2018-12-01 19:24:38,729 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 352 [2018-12-01 19:24:38,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 19:24:38,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 19:24:38,730 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:24:38,730 INFO L867 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, 1] [2018-12-01 19:24:38,730 INFO L794 eck$LassoCheckResult]: Stem: 2280#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string42.base, #t~string42.offset := #Ultimate.alloc(13);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(77, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(101, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(116, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(104, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string46.base, #t~string46.offset, 1);call write~init~int(82, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(73, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(84, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 4 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(75, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 1 + #t~string50.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string56.base, #t~string56.offset := #Ultimate.alloc(13);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~switchedOnBeforeTS~0 := 0; 2134#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 2135#L534 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 2278#L542 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 2279#L498 assume 0 != main_~tmp~3; 2222#L469 ~switchedOnBeforeTS~0 := 0; 2223#L985 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2169#L1006-1 [2018-12-01 19:24:38,730 INFO L796 eck$LassoCheckResult]: Loop: 2169#L1006-1 assume !false; 2170#L568 assume test_~splverifierCounter~0 < 4; 2214#L569 test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 2123#L577 assume !(0 != test_~tmp~4); 2125#L577-1 test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 2582#L587 assume !(0 != test_~tmp___0~0); 2255#L587-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 2256#L597 assume 0 != test_~tmp___2~0; 2275#L603-1 havoc __utac_acc__Specification5_spec__2_#t~ret73;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 2189#L885 __utac_acc__Specification5_spec__2_#t~ret73 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret73;havoc __utac_acc__Specification5_spec__2_#t~ret73; 2164#L995 assume !(0 != ~pumpRunning~0); 2165#L748 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret53, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 2253#L832 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret52, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 2254#L806-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret51, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 2193#L780-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret71, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 2194#L713-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 2273#L718-3 isHighWaterLevel_#t~ret71 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret71;havoc isHighWaterLevel_#t~ret71; 2199#L934-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 2200#L934-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 2138#L940-3 processEnvironment__wrappee__highWaterSensor_#t~ret51 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret51;havoc processEnvironment__wrappee__highWaterSensor_#t~ret51; 2139#L784-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 2230#L755 havoc __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_#t~ret75, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 2231#L705 __utac_acc__Specification5_spec__3_#t~ret74 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret74;havoc __utac_acc__Specification5_spec__3_#t~ret74; 2161#L1006 assume 2 != __utac_acc__Specification5_spec__3_~tmp~10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 2136#L885-1 __utac_acc__Specification5_spec__3_#t~ret75 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret75;havoc __utac_acc__Specification5_spec__3_#t~ret75; 2137#L1010 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 2169#L1006-1 [2018-12-01 19:24:38,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:24:38,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2018-12-01 19:24:38,730 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 19:24:38,730 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 19:24:38,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:24:38,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 19:24:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 19:24:38,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:24:38,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1716079387, now seen corresponding path program 1 times [2018-12-01 19:24:38,750 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 19:24:38,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 19:24:38,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,750 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 19:24:38,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 19:24:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 19:24:38,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:24:38,757 INFO L82 PathProgramCache]: Analyzing trace with hash 612676267, now seen corresponding path program 1 times [2018-12-01 19:24:38,757 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 19:24:38,757 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 19:24:38,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:24:38,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:24:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 19:24:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 19:24:43,114 WARN L180 SmtUtils]: Spent 4.20 s on a formula simplification. DAG size of input: 429 DAG size of output: 427 [2018-12-01 19:24:45,313 WARN L180 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 425 [2018-12-01 19:24:45,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 07:24:45 BoogieIcfgContainer [2018-12-01 19:24:45,351 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-01 19:24:45,351 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 19:24:45,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 19:24:45,351 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 19:24:45,352 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:24:37" (3/4) ... [2018-12-01 19:24:45,354 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-01 19:24:45,384 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5daf6c29-95ca-4133-8817-fcf3cc5c4f56/bin-2019/uautomizer/witness.graphml [2018-12-01 19:24:45,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 19:24:45,385 INFO L168 Benchmark]: Toolchain (without parser) took 8414.03 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 307.2 MB). Free memory was 950.6 MB in the beginning and 1.3 GB in the end (delta: -347.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 19:24:45,386 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 19:24:45,386 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -159.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-12-01 19:24:45,386 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.18 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. [2018-12-01 19:24:45,387 INFO L168 Benchmark]: Boogie Preprocessor took 27.37 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-01 19:24:45,387 INFO L168 Benchmark]: RCFGBuilder took 502.81 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: 93.1 MB). Peak memory consumption was 93.1 MB. Max. memory is 11.5 GB. [2018-12-01 19:24:45,387 INFO L168 Benchmark]: BuchiAutomizer took 7512.07 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 184.5 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -291.2 MB). Peak memory consumption was 385.6 MB. Max. memory is 11.5 GB. [2018-12-01 19:24:45,388 INFO L168 Benchmark]: Witness Printer took 33.64 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-12-01 19:24:45,389 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 296.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -159.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.18 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 27.37 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 502.81 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: 93.1 MB). Peak memory consumption was 93.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 7512.07 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 184.5 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -291.2 MB). Peak memory consumption was 385.6 MB. Max. memory is 11.5 GB. * Witness Printer took 33.64 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 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 6 locations. The remainder module has 493 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 6.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 388 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 493 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 862 SDtfs, 2301 SDslu, 1907 SDs, 0 SdLazy, 200 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 567]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=37, NULL=0, NULL=0, NULL=12, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43693091=0, tmp=0, NULL=0, NULL=34, tmp___1=0, NULL=36, NULL=8, NULL=16, cleanupTimeShifts=4, retValue_acc=0, NULL=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@581428c4=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25096cd6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6af220d1=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@539af089=0, waterLevel=1, NULL=0, NULL=19, NULL=18, tmp___0=0, NULL=17, \result=1, head=0, pumpRunning=0, retValue_acc=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69a0b6f2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23a887cb=0, NULL=0, \result=1, tmp=1, retValue_acc=0, tmp=1, retValue_acc=1, NULL=14, head=0, NULL=0, NULL=26, NULL=38, tmp=0, NULL=0, NULL=24, NULL=0, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72d156be=0, NULL=28, tmp___0=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48cbaa09=0, NULL=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1035e040=0, switchedOnBeforeTS=0, NULL=39, NULL=20, tmp=0, \result=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, NULL=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=31, \result=0, tmp___0=0, NULL=35, NULL=0, NULL=27, NULL=0, retValue_acc=1, NULL=33, NULL=29, tmp___2=56, splverifierCounter=0, NULL=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34375ce3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c9f4bc1=0, NULL=22, NULL=0, NULL=0, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L630] int waterLevel = 1; [L631] int methaneLevelCritical = 0; [L736] int pumpRunning = 0; [L737] int systemActive = 1; [L979] int switchedOnBeforeTS ; [L489] int retValue_acc ; [L490] int tmp ; [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L984] switchedOnBeforeTS = 0 [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 Loop: [L567] COND TRUE 1 [L569] COND TRUE splverifierCounter < 4 [L575] tmp = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp)) [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp___0)) [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND TRUE \read(tmp___2) [L881] int retValue_acc ; [L884] retValue_acc = pumpRunning [L885] return (retValue_acc); [L993] switchedOnBeforeTS = isPumpRunning() [L748] COND FALSE !(\read(pumpRunning)) [L755] COND TRUE \read(systemActive) [L829] int tmp ; [L832] COND FALSE !(\read(pumpRunning)) [L803] int tmp ; [L806] COND FALSE !(\read(pumpRunning)) [L777] int tmp ; [L780] COND TRUE ! pumpRunning [L926] int retValue_acc ; [L927] int tmp ; [L928] int tmp___0 ; [L710] int retValue_acc ; [L713] COND TRUE waterLevel < 2 [L714] retValue_acc = 1 [L715] return (retValue_acc); [L932] tmp = isHighWaterSensorDry() [L934] COND TRUE \read(tmp) [L935] tmp___0 = 0 [L939] retValue_acc = tmp___0 [L940] return (retValue_acc); [L782] tmp = isHighWaterLevel() [L784] COND FALSE !(\read(tmp)) [L999] int tmp ; [L1000] int tmp___0 ; [L701] int retValue_acc ; [L704] retValue_acc = waterLevel [L705] return (retValue_acc); [L1004] tmp = getWaterLevel() [L1006] COND TRUE tmp != 2 [L881] int retValue_acc ; [L884] retValue_acc = pumpRunning [L885] return (retValue_acc); [L1008] tmp___0 = isPumpRunning() [L1010] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...