./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product21_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c4736f61-322d-4882-a24d-0209ac1ae025/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c4736f61-322d-4882-a24d-0209ac1ae025/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c4736f61-322d-4882-a24d-0209ac1ae025/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c4736f61-322d-4882-a24d-0209ac1ae025/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product21_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c4736f61-322d-4882-a24d-0209ac1ae025/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c4736f61-322d-4882-a24d-0209ac1ae025/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 96ae2288ffb48a442cf9d3aacf0a8b0af732e156 ...................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-0cd3be1 [2018-11-28 13:32:02,898 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:32:02,899 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:32:02,906 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:32:02,907 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:32:02,907 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:32:02,908 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:32:02,909 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:32:02,910 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:32:02,911 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:32:02,912 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:32:02,912 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:32:02,912 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:32:02,913 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:32:02,914 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:32:02,914 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:32:02,915 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:32:02,915 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:32:02,916 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:32:02,917 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:32:02,918 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:32:02,919 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:32:02,920 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:32:02,921 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:32:02,921 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:32:02,921 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:32:02,922 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:32:02,922 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:32:02,923 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:32:02,923 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:32:02,923 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:32:02,924 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:32:02,924 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:32:02,924 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:32:02,925 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:32:02,925 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:32:02,925 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c4736f61-322d-4882-a24d-0209ac1ae025/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 13:32:02,935 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:32:02,935 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:32:02,936 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:32:02,936 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:32:02,937 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:32:02,937 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 13:32:02,937 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 13:32:02,937 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 13:32:02,937 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 13:32:02,937 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 13:32:02,937 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 13:32:02,938 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:32:02,938 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 13:32:02,938 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 13:32:02,938 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:32:02,938 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 13:32:02,938 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:32:02,938 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 13:32:02,939 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 13:32:02,939 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 13:32:02,939 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 13:32:02,939 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:32:02,939 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 13:32:02,939 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:32:02,939 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 13:32:02,940 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:32:02,940 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:32:02,940 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 13:32:02,940 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:32:02,940 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:32:02,940 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 13:32:02,941 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 13:32:02,941 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_c4736f61-322d-4882-a24d-0209ac1ae025/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 -> 96ae2288ffb48a442cf9d3aacf0a8b0af732e156 [2018-11-28 13:32:02,965 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:32:02,974 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:32:02,977 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:32:02,978 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:32:02,978 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:32:02,979 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c4736f61-322d-4882-a24d-0209ac1ae025/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product21_true-unreach-call_false-termination.cil.c [2018-11-28 13:32:03,020 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c4736f61-322d-4882-a24d-0209ac1ae025/bin-2019/uautomizer/data/8ca231f5f/cca360ebc165475aaa1ed5b2c4f78b14/FLAG87dc6381a [2018-11-28 13:32:03,399 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:32:03,399 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c4736f61-322d-4882-a24d-0209ac1ae025/sv-benchmarks/c/product-lines/minepump_spec5_product21_true-unreach-call_false-termination.cil.c [2018-11-28 13:32:03,408 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c4736f61-322d-4882-a24d-0209ac1ae025/bin-2019/uautomizer/data/8ca231f5f/cca360ebc165475aaa1ed5b2c4f78b14/FLAG87dc6381a [2018-11-28 13:32:03,785 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c4736f61-322d-4882-a24d-0209ac1ae025/bin-2019/uautomizer/data/8ca231f5f/cca360ebc165475aaa1ed5b2c4f78b14 [2018-11-28 13:32:03,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:32:03,790 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:32:03,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:32:03,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:32:03,793 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:32:03,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:32:03" (1/1) ... [2018-11-28 13:32:03,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45fd5053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:32:03, skipping insertion in model container [2018-11-28 13:32:03,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:32:03" (1/1) ... [2018-11-28 13:32:03,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:32:03,827 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:32:04,017 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:32:04,029 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:32:04,131 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:32:04,154 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:32:04,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:32:04 WrapperNode [2018-11-28 13:32:04,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:32:04,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:32:04,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:32:04,155 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:32:04,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:32:04" (1/1) ... [2018-11-28 13:32:04,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:32:04" (1/1) ... [2018-11-28 13:32:04,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:32:04,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:32:04,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:32:04,204 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:32:04,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:32:04" (1/1) ... [2018-11-28 13:32:04,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:32:04" (1/1) ... [2018-11-28 13:32:04,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:32:04" (1/1) ... [2018-11-28 13:32:04,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:32:04" (1/1) ... [2018-11-28 13:32:04,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:32:04" (1/1) ... [2018-11-28 13:32:04,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:32:04" (1/1) ... [2018-11-28 13:32:04,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:32:04" (1/1) ... [2018-11-28 13:32:04,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:32:04,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:32:04,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:32:04,237 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:32:04,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:32:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c4736f61-322d-4882-a24d-0209ac1ae025/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 [2018-11-28 13:32:04,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 13:32:04,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 13:32:04,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:32:04,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:32:04,812 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:32:04,812 INFO L280 CfgBuilder]: Removed 170 assue(true) statements. [2018-11-28 13:32:04,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:32:04 BoogieIcfgContainer [2018-11-28 13:32:04,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:32:04,813 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 13:32:04,813 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 13:32:04,816 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 13:32:04,817 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:32:04,817 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 01:32:03" (1/3) ... [2018-11-28 13:32:04,818 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bde86b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 01:32:04, skipping insertion in model container [2018-11-28 13:32:04,818 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:32:04,818 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:32:04" (2/3) ... [2018-11-28 13:32:04,818 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bde86b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 01:32:04, skipping insertion in model container [2018-11-28 13:32:04,818 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:32:04,818 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:32:04" (3/3) ... [2018-11-28 13:32:04,820 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product21_true-unreach-call_false-termination.cil.c [2018-11-28 13:32:04,852 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:32:04,853 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 13:32:04,853 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 13:32:04,853 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 13:32:04,853 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:32:04,853 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:32:04,853 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 13:32:04,853 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:32:04,853 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 13:32:04,863 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2018-11-28 13:32:04,885 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2018-11-28 13:32:04,885 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:32:04,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:32:04,892 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:32:04,892 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:32:04,892 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 13:32:04,892 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2018-11-28 13:32:04,895 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2018-11-28 13:32:04,895 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:32:04,895 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:32:04,896 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:32:04,896 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:32:04,899 INFO L794 eck$LassoCheckResult]: Stem: 70#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(21);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(30);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(9);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(21);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(25);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string58.base, #t~string58.offset := #Ultimate.alloc(13);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(80, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(117, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(109, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(112, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(32, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 5#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 57#L322true 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; 90#L330true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 82#L132true assume 0 != main_~tmp~0; 9#L103true ~switchedOnBeforeTS~0 := 0; 15#L155true havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 49#L176-1true [2018-11-28 13:32:04,900 INFO L796 eck$LassoCheckResult]: Loop: 49#L176-1true assume !false; 110#L712true assume test_~splverifierCounter~0 < 4; 46#L713true test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 74#L721true assume !(0 != test_~tmp~5); 78#L721-1true test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 6#L731true assume !(0 != test_~tmp___0~1); 7#L731-1true test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 42#L741true assume 0 != test_~tmp___2~0; 14#L747-2true havoc __utac_acc__Specification5_spec__2_#t~ret1;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; 50#L889true __utac_acc__Specification5_spec__2_#t~ret1 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret1;havoc __utac_acc__Specification5_spec__2_#t~ret1; 52#L165true assume !(0 != ~pumpRunning~0); 4#L778true assume !(0 != ~systemActive~0); 36#L785true havoc __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_#t~ret3, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 68#L286true __utac_acc__Specification5_spec__3_#t~ret2 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 54#L176true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1); 49#L176-1true [2018-11-28 13:32:04,904 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:32:04,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2018-11-28 13:32:04,905 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:32:04,906 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:32:04,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:32:04,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:32:04,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:32:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:32:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:32:05,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:32:05,067 INFO L82 PathProgramCache]: Analyzing trace with hash 95582188, now seen corresponding path program 1 times [2018-11-28 13:32:05,067 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:32:05,067 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:32:05,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:32:05,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:32:05,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:32:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:32:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:32:05,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:32:05,081 INFO L82 PathProgramCache]: Analyzing trace with hash 2029607398, now seen corresponding path program 1 times [2018-11-28 13:32:05,081 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:32:05,081 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:32:05,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:32:05,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:32:05,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:32:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:32:05,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:32:05,181 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:32:05,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 13:32:05,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 13:32:05,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:32:05,269 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 6 states. [2018-11-28 13:32:05,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:32:05,340 INFO L93 Difference]: Finished difference Result 111 states and 154 transitions. [2018-11-28 13:32:05,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:32:05,341 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 154 transitions. [2018-11-28 13:32:05,344 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2018-11-28 13:32:05,348 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 104 states and 147 transitions. [2018-11-28 13:32:05,349 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2018-11-28 13:32:05,350 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2018-11-28 13:32:05,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 147 transitions. [2018-11-28 13:32:05,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:32:05,351 INFO L705 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2018-11-28 13:32:05,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 147 transitions. [2018-11-28 13:32:05,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-11-28 13:32:05,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-11-28 13:32:05,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 147 transitions. [2018-11-28 13:32:05,375 INFO L728 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2018-11-28 13:32:05,375 INFO L608 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2018-11-28 13:32:05,375 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 13:32:05,375 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 147 transitions. [2018-11-28 13:32:05,376 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2018-11-28 13:32:05,376 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:32:05,376 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:32:05,377 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:32:05,377 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:32:05,377 INFO L794 eck$LassoCheckResult]: Stem: 330#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(21);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(30);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(9);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(21);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(25);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string58.base, #t~string58.offset := #Ultimate.alloc(13);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(80, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(117, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(109, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(112, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(32, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 244#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 245#L322 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; 315#L330 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 333#L132 assume 0 != main_~tmp~0; 251#L103 ~switchedOnBeforeTS~0 := 0; 252#L155 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 258#L176-1 [2018-11-28 13:32:05,377 INFO L796 eck$LassoCheckResult]: Loop: 258#L176-1 assume !false; 304#L712 assume test_~splverifierCounter~0 < 4; 302#L713 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 303#L721 assume !(0 != test_~tmp~5); 285#L721-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 246#L731 assume !(0 != test_~tmp___0~1); 241#L731-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 247#L741 assume 0 != test_~tmp___2~0; 259#L747-2 havoc __utac_acc__Specification5_spec__2_#t~ret1;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; 260#L889 __utac_acc__Specification5_spec__2_#t~ret1 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret1;havoc __utac_acc__Specification5_spec__2_#t~ret1; 305#L165 assume !(0 != ~pumpRunning~0); 242#L778 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 243#L836 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret54, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 268#L810-1 assume !(0 != ~pumpRunning~0); 270#L785 havoc __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_#t~ret3, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 294#L286 __utac_acc__Specification5_spec__3_#t~ret2 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 311#L176 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1); 258#L176-1 [2018-11-28 13:32:05,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:32:05,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2018-11-28 13:32:05,378 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:32:05,378 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:32:05,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:32:05,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:32:05,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:32:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:32:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:32:05,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:32:05,424 INFO L82 PathProgramCache]: Analyzing trace with hash -489209282, now seen corresponding path program 1 times [2018-11-28 13:32:05,424 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:32:05,424 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:32:05,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:32:05,425 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:32:05,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:32:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:32:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:32:05,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:32:05,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1611821640, now seen corresponding path program 1 times [2018-11-28 13:32:05,434 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:32:05,434 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:32:05,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:32:05,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:32:05,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:32:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:32:05,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:32:05,504 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:32:05,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 13:32:05,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:32:05,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:32:05,562 INFO L87 Difference]: Start difference. First operand 104 states and 147 transitions. cyclomatic complexity: 45 Second operand 5 states. [2018-11-28 13:32:05,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:32:05,746 INFO L93 Difference]: Finished difference Result 320 states and 453 transitions. [2018-11-28 13:32:05,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 13:32:05,747 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 320 states and 453 transitions. [2018-11-28 13:32:05,753 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2018-11-28 13:32:05,756 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 320 states to 320 states and 453 transitions. [2018-11-28 13:32:05,756 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 320 [2018-11-28 13:32:05,757 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 320 [2018-11-28 13:32:05,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 320 states and 453 transitions. [2018-11-28 13:32:05,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:32:05,759 INFO L705 BuchiCegarLoop]: Abstraction has 320 states and 453 transitions. [2018-11-28 13:32:05,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states and 453 transitions. [2018-11-28 13:32:05,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 201. [2018-11-28 13:32:05,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2018-11-28 13:32:05,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 280 transitions. [2018-11-28 13:32:05,770 INFO L728 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2018-11-28 13:32:05,770 INFO L608 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2018-11-28 13:32:05,770 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 13:32:05,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 280 transitions. [2018-11-28 13:32:05,772 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2018-11-28 13:32:05,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:32:05,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:32:05,772 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:32:05,773 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] [2018-11-28 13:32:05,773 INFO L794 eck$LassoCheckResult]: Stem: 779#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(21);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(30);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(9);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(21);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(25);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string58.base, #t~string58.offset := #Ultimate.alloc(13);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(80, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(117, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(109, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(112, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(32, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 684#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 685#L322 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; 760#L330 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 794#L132 assume 0 != main_~tmp~0; 691#L103 ~switchedOnBeforeTS~0 := 0; 692#L155 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 698#L176-1 [2018-11-28 13:32:05,773 INFO L796 eck$LassoCheckResult]: Loop: 698#L176-1 assume !false; 747#L712 assume test_~splverifierCounter~0 < 4; 807#L713 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 863#L721 assume !(0 != test_~tmp~5); 862#L721-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 861#L731 assume !(0 != test_~tmp___0~1); 859#L731-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 858#L741 assume 0 != test_~tmp___2~0; 856#L747-2 havoc __utac_acc__Specification5_spec__2_#t~ret1;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; 854#L889 __utac_acc__Specification5_spec__2_#t~ret1 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret1;havoc __utac_acc__Specification5_spec__2_#t~ret1; 853#L165 assume !(0 != ~pumpRunning~0); 850#L778 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 846#L836 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret54, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 841#L810-1 assume !(0 != ~pumpRunning~0); 836#L785 havoc __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_#t~ret3, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 835#L286 __utac_acc__Specification5_spec__3_#t~ret2 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 754#L176 assume 2 != __utac_acc__Specification5_spec__3_~tmp~1;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; 755#L889-1 __utac_acc__Specification5_spec__3_#t~ret3 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret3;havoc __utac_acc__Specification5_spec__3_#t~ret3; 696#L180 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 698#L176-1 [2018-11-28 13:32:05,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:32:05,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2018-11-28 13:32:05,774 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:32:05,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:32:05,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:32:05,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:32:05,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:32:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:32:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:32:05,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:32:05,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1978697447, now seen corresponding path program 1 times [2018-11-28 13:32:05,804 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:32:05,805 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:32:05,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:32:05,805 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:32:05,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:32:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:32:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:32:05,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:32:05,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1522585107, now seen corresponding path program 1 times [2018-11-28 13:32:05,811 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:32:05,812 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:32:05,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:32:05,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:32:05,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:32:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:32:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:32:11,326 WARN L180 SmtUtils]: Spent 5.38 s on a formula simplification. DAG size of input: 429 DAG size of output: 427 [2018-11-28 13:32:13,849 WARN L180 SmtUtils]: Spent 2.52 s on a formula simplification that was a NOOP. DAG size: 425 [2018-11-28 13:32:13,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 01:32:13 BoogieIcfgContainer [2018-11-28 13:32:13,893 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 13:32:13,893 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:32:13,893 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:32:13,894 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:32:13,894 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:32:04" (3/4) ... [2018-11-28 13:32:13,897 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 13:32:13,939 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c4736f61-322d-4882-a24d-0209ac1ae025/bin-2019/uautomizer/witness.graphml [2018-11-28 13:32:13,939 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:32:13,940 INFO L168 Benchmark]: Toolchain (without parser) took 10150.00 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 316.7 MB). Free memory was 945.3 MB in the beginning and 933.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 328.9 MB. Max. memory is 11.5 GB. [2018-11-28 13:32:13,940 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 974.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:32:13,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-11-28 13:32:13,941 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.80 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. [2018-11-28 13:32:13,942 INFO L168 Benchmark]: Boogie Preprocessor took 32.50 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. [2018-11-28 13:32:13,942 INFO L168 Benchmark]: RCFGBuilder took 575.47 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: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. [2018-11-28 13:32:13,942 INFO L168 Benchmark]: BuchiAutomizer took 9080.33 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 184.0 MB). Free memory was 1.1 GB in the beginning and 933.1 MB in the end (delta: 123.9 MB). Peak memory consumption was 347.5 MB. Max. memory is 11.5 GB. [2018-11-28 13:32:13,943 INFO L168 Benchmark]: Witness Printer took 45.61 ms. Allocated memory is still 1.3 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:32:13,944 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 974.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 364.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.80 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. * Boogie Preprocessor took 32.50 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 575.47 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: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 9080.33 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 184.0 MB). Free memory was 1.1 GB in the beginning and 933.1 MB in the end (delta: 123.9 MB). Peak memory consumption was 347.5 MB. Max. memory is 11.5 GB. * Witness Printer took 45.61 ms. Allocated memory is still 1.3 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 201 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 8.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 119 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 201 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 390 SDtfs, 999 SDslu, 470 SDs, 0 SdLazy, 105 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 711]: 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=0, retValue_acc=0, NULL=0, NULL=37, NULL=0, NULL=0, NULL=33, NULL=0, NULL=27, NULL=0, NULL=0, NULL=17, NULL=40, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@583ab311=0, NULL=18, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@da1c940=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@caf3f36=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33624928=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@582dcc30=0, NULL=26, tmp=0, NULL=0, NULL=42, NULL=0, NULL=29, tmp=0, tmp=1, tmp___1=0, NULL=39, retValue_acc=0, cleanupTimeShifts=4, NULL=23, switchedOnBeforeTS=0, NULL=24, NULL=8, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36d9fb9b=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=38, NULL=31, NULL=35, retValue_acc=1, NULL=28, NULL=0, tmp___0=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@582f3c73=0, NULL=0, NULL=22, NULL=0, NULL=0, NULL=0, NULL=0, NULL=14, retValue_acc=1, NULL=0, NULL=19, tmp___2=56, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2724aeb1=0, NULL=34, NULL=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1295c8e8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@234c7eec=0, head=0, tmp=0, NULL=0, NULL=36, NULL=0, NULL=0, NULL=20, NULL=15} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L149] int switchedOnBeforeTS ; [L211] int waterLevel = 1; [L212] int methaneLevelCritical = 0; [L504] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L768] int pumpRunning = 0; [L769] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L326] int retValue_acc ; [L329] retValue_acc = 1 [L330] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L154] switchedOnBeforeTS = 0 [L702] int splverifierCounter ; [L703] int tmp ; [L704] int tmp___0 ; [L705] int tmp___1 ; [L706] int tmp___2 ; [L709] splverifierCounter = 0 Loop: [L711] COND TRUE 1 [L713] COND TRUE splverifierCounter < 4 [L719] tmp = __VERIFIER_nondet_int() [L721] COND FALSE !(\read(tmp)) [L729] tmp___0 = __VERIFIER_nondet_int() [L731] COND FALSE !(\read(tmp___0)) [L739] tmp___2 = __VERIFIER_nondet_int() [L741] COND TRUE \read(tmp___2) [L885] int retValue_acc ; [L888] retValue_acc = pumpRunning [L889] return (retValue_acc); [L163] switchedOnBeforeTS = isPumpRunning() [L778] COND FALSE !(\read(pumpRunning)) [L785] COND TRUE \read(systemActive) [L833] int tmp ; [L836] COND FALSE !(\read(pumpRunning)) [L807] int tmp ; [L810] COND FALSE !(\read(pumpRunning)) [L169] int tmp ; [L170] int tmp___0 ; [L282] int retValue_acc ; [L285] retValue_acc = waterLevel [L286] return (retValue_acc); [L174] tmp = getWaterLevel() [L176] COND TRUE tmp != 2 [L885] int retValue_acc ; [L888] retValue_acc = pumpRunning [L889] return (retValue_acc); [L178] tmp___0 = isPumpRunning() [L180] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...