./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product48_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e3603f6c-dce4-4d44-a057-192334a96c15/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e3603f6c-dce4-4d44-a057-192334a96c15/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e3603f6c-dce4-4d44-a057-192334a96c15/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e3603f6c-dce4-4d44-a057-192334a96c15/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product48_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e3603f6c-dce4-4d44-a057-192334a96c15/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e3603f6c-dce4-4d44-a057-192334a96c15/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 a22d1d84f43657cc690c98e940f1a10486e8ef5e .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.23-5842f4b [2018-11-18 14:40:18,972 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:40:18,974 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:40:18,982 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:40:18,982 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:40:18,983 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:40:18,984 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:40:18,985 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:40:18,986 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:40:18,987 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:40:18,987 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:40:18,988 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:40:18,988 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:40:18,989 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:40:18,990 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:40:18,990 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:40:18,991 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:40:18,992 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:40:18,993 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:40:18,994 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:40:18,995 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:40:18,996 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:40:18,998 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:40:18,998 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:40:18,998 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:40:18,999 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:40:19,000 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:40:19,000 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:40:19,001 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:40:19,002 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:40:19,002 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:40:19,003 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:40:19,003 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:40:19,003 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:40:19,004 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:40:19,004 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:40:19,004 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e3603f6c-dce4-4d44-a057-192334a96c15/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 14:40:19,016 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:40:19,016 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:40:19,017 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:40:19,017 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:40:19,017 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:40:19,018 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 14:40:19,018 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 14:40:19,018 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 14:40:19,018 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 14:40:19,018 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 14:40:19,018 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 14:40:19,019 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:40:19,019 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:40:19,019 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:40:19,019 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:40:19,019 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:40:19,019 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:40:19,019 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 14:40:19,019 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 14:40:19,020 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 14:40:19,020 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:40:19,020 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:40:19,020 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 14:40:19,020 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:40:19,020 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 14:40:19,020 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:40:19,020 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:40:19,021 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 14:40:19,021 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:40:19,021 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:40:19,021 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 14:40:19,022 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 14:40:19,022 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_e3603f6c-dce4-4d44-a057-192334a96c15/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 -> a22d1d84f43657cc690c98e940f1a10486e8ef5e [2018-11-18 14:40:19,043 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:40:19,052 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:40:19,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:40:19,056 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:40:19,056 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:40:19,056 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e3603f6c-dce4-4d44-a057-192334a96c15/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product48_true-unreach-call_false-termination.cil.c [2018-11-18 14:40:19,102 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e3603f6c-dce4-4d44-a057-192334a96c15/bin-2019/uautomizer/data/91626a66b/2f626fe59f674b03b1903f7c4085c083/FLAG638aa3d37 [2018-11-18 14:40:19,473 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:40:19,474 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e3603f6c-dce4-4d44-a057-192334a96c15/sv-benchmarks/c/product-lines/minepump_spec2_product48_true-unreach-call_false-termination.cil.c [2018-11-18 14:40:19,484 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e3603f6c-dce4-4d44-a057-192334a96c15/bin-2019/uautomizer/data/91626a66b/2f626fe59f674b03b1903f7c4085c083/FLAG638aa3d37 [2018-11-18 14:40:19,860 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e3603f6c-dce4-4d44-a057-192334a96c15/bin-2019/uautomizer/data/91626a66b/2f626fe59f674b03b1903f7c4085c083 [2018-11-18 14:40:19,862 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:40:19,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:40:19,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:40:19,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:40:19,866 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:40:19,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:40:19" (1/1) ... [2018-11-18 14:40:19,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37764a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:40:19, skipping insertion in model container [2018-11-18 14:40:19,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:40:19" (1/1) ... [2018-11-18 14:40:19,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:40:19,912 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:40:20,100 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:40:20,110 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:40:20,213 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:40:20,232 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:40:20,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:40:20 WrapperNode [2018-11-18 14:40:20,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:40:20,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:40:20,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:40:20,233 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:40:20,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:40:20" (1/1) ... [2018-11-18 14:40:20,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:40:20" (1/1) ... [2018-11-18 14:40:20,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:40:20,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:40:20,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:40:20,272 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:40:20,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:40:20" (1/1) ... [2018-11-18 14:40:20,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:40:20" (1/1) ... [2018-11-18 14:40:20,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:40:20" (1/1) ... [2018-11-18 14:40:20,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:40:20" (1/1) ... [2018-11-18 14:40:20,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:40:20" (1/1) ... [2018-11-18 14:40:20,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:40:20" (1/1) ... [2018-11-18 14:40:20,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:40:20" (1/1) ... [2018-11-18 14:40:20,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:40:20,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:40:20,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:40:20,303 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:40:20,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:40:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e3603f6c-dce4-4d44-a057-192334a96c15/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 [2018-11-18 14:40:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:40:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:40:20,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:40:20,932 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:40:20,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:40:20 BoogieIcfgContainer [2018-11-18 14:40:20,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:40:20,933 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 14:40:20,933 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 14:40:20,935 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 14:40:20,935 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:40:20,936 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 02:40:19" (1/3) ... [2018-11-18 14:40:20,936 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3aae23f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:40:20, skipping insertion in model container [2018-11-18 14:40:20,937 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:40:20,937 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:40:20" (2/3) ... [2018-11-18 14:40:20,937 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3aae23f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:40:20, skipping insertion in model container [2018-11-18 14:40:20,937 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:40:20,937 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:40:20" (3/3) ... [2018-11-18 14:40:20,939 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product48_true-unreach-call_false-termination.cil.c [2018-11-18 14:40:20,972 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:40:20,973 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 14:40:20,973 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 14:40:20,973 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 14:40:20,973 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:40:20,973 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:40:20,973 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 14:40:20,973 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:40:20,973 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 14:40:20,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 191 states. [2018-11-18 14:40:21,011 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2018-11-18 14:40:21,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:40:21,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:40:21,017 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:40:21,017 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:40:21,017 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 14:40:21,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 191 states. [2018-11-18 14:40:21,022 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2018-11-18 14:40:21,023 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:40:21,023 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:40:21,023 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:40:21,023 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:40:21,027 INFO L794 eck$LassoCheckResult]: Stem: 148#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(13);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 110];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 79];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 44];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 80];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 117];#memory_int := #memory_int[#t~string26.base,3 + #t~string26.offset := 109];#memory_int := #memory_int[#t~string26.base,4 + #t~string26.offset := 112];#memory_int := #memory_int[#t~string26.base,5 + #t~string26.offset := 58];#memory_int := #memory_int[#t~string26.base,6 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 110];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 79];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 102];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 102];#memory_int := #memory_int[#t~string30.base,3 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 41];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 32];#memory_int := #memory_int[#t~string32.base,2 + #t~string32.offset := 0];call #t~string34.base, #t~string34.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string34.base,#t~string34.offset := 10];#memory_int := #memory_int[#t~string34.base,1 + #t~string34.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(21);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(30);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(9);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(25);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9;assume { :begin_inline_select_helpers } true; 57#L166true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 181#L159true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 101#L174true main_#t~ret73 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~9 := main_#t~ret73;havoc main_#t~ret73; 29#L973true assume 0 != main_~tmp~9;assume { :begin_inline_setup } true; 178#L949true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 111#L482true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 85#L193-3true [2018-11-18 14:40:21,027 INFO L796 eck$LassoCheckResult]: Loop: 85#L193-3true assume true; 122#L193-1true assume !false; 45#L194true assume test_~splverifierCounter~0 < 4; 169#L195true test_~tmp~0 := test_#t~nondet11;havoc test_#t~nondet11; 184#L203true assume !(0 != test_~tmp~0); 164#L203-2true test_~tmp___0~0 := test_#t~nondet12;havoc test_#t~nondet12; 69#L213true assume !(0 != test_~tmp___0~0); 32#L213-2true test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 146#L223true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 112#L471true assume { :end_inline_startSystem } true; 137#L231-2true assume { :begin_inline_timeShift } true; 143#L264true assume !(0 != ~pumpRunning~0); 138#L264-2true assume !(0 != ~systemActive~0); 50#L271-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_#t~ret37, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 187#L90-3true __utac_acc__Specification2_spec__2_#t~ret36 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret36;havoc __utac_acc__Specification2_spec__2_#t~ret36; 109#L493true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 113#L493-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 134#L281true assume { :end_inline_timeShift } true; 85#L193-3true [2018-11-18 14:40:21,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:40:21,032 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 14:40:21,034 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:40:21,035 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:40:21,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:40:21,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:40:21,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:40:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:40:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:40:21,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:40:21,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1432662663, now seen corresponding path program 1 times [2018-11-18 14:40:21,185 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:40:21,185 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:40:21,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:40:21,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:40:21,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:40:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:40:21,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:40:21,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:40:21,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:40:21,229 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:40:21,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:40:21,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:40:21,245 INFO L87 Difference]: Start difference. First operand 191 states. Second operand 3 states. [2018-11-18 14:40:21,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:40:21,315 INFO L93 Difference]: Finished difference Result 366 states and 482 transitions. [2018-11-18 14:40:21,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:40:21,317 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 366 states and 482 transitions. [2018-11-18 14:40:21,323 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 240 [2018-11-18 14:40:21,329 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 366 states to 346 states and 461 transitions. [2018-11-18 14:40:21,330 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 346 [2018-11-18 14:40:21,331 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 346 [2018-11-18 14:40:21,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 346 states and 461 transitions. [2018-11-18 14:40:21,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:40:21,334 INFO L705 BuchiCegarLoop]: Abstraction has 346 states and 461 transitions. [2018-11-18 14:40:21,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states and 461 transitions. [2018-11-18 14:40:21,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 343. [2018-11-18 14:40:21,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2018-11-18 14:40:21,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 457 transitions. [2018-11-18 14:40:21,367 INFO L728 BuchiCegarLoop]: Abstraction has 343 states and 457 transitions. [2018-11-18 14:40:21,368 INFO L608 BuchiCegarLoop]: Abstraction has 343 states and 457 transitions. [2018-11-18 14:40:21,368 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 14:40:21,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 343 states and 457 transitions. [2018-11-18 14:40:21,371 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 237 [2018-11-18 14:40:21,371 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:40:21,371 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:40:21,372 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:40:21,372 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] [2018-11-18 14:40:21,372 INFO L794 eck$LassoCheckResult]: Stem: 772#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(13);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 110];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 79];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 44];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 80];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 117];#memory_int := #memory_int[#t~string26.base,3 + #t~string26.offset := 109];#memory_int := #memory_int[#t~string26.base,4 + #t~string26.offset := 112];#memory_int := #memory_int[#t~string26.base,5 + #t~string26.offset := 58];#memory_int := #memory_int[#t~string26.base,6 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 110];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 79];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 102];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 102];#memory_int := #memory_int[#t~string30.base,3 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 41];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 32];#memory_int := #memory_int[#t~string32.base,2 + #t~string32.offset := 0];call #t~string34.base, #t~string34.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string34.base,#t~string34.offset := 10];#memory_int := #memory_int[#t~string34.base,1 + #t~string34.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(21);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(30);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(9);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(25);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 580#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9;assume { :begin_inline_select_helpers } true; 581#L166 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 665#L159 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 725#L174 main_#t~ret73 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~9 := main_#t~ret73;havoc main_#t~ret73; 614#L973 assume 0 != main_~tmp~9;assume { :begin_inline_setup } true; 615#L949 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 733#L482 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 703#L193-3 [2018-11-18 14:40:21,372 INFO L796 eck$LassoCheckResult]: Loop: 703#L193-3 assume true; 704#L193-1 assume !false; 804#L194 assume test_~splverifierCounter~0 < 4; 786#L195 test_~tmp~0 := test_#t~nondet11;havoc test_#t~nondet11; 787#L203 assume !(0 != test_~tmp~0); 780#L203-2 test_~tmp___0~0 := test_#t~nondet12;havoc test_#t~nondet12; 781#L213 assume !(0 != test_~tmp___0~0); 801#L213-2 test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 770#L223 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet14;havoc test_#t~nondet14; 771#L231 assume !(0 != test_~tmp___1~0); 735#L231-2 assume { :begin_inline_timeShift } true; 759#L264 assume !(0 != ~pumpRunning~0); 760#L264-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 761#L322 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret15, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 571#L296-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 572#L288-3 assume { :end_inline_processEnvironment__wrappee__base } true; 566#L296-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 567#L322-1 assume { :end_inline_processEnvironment } true; 651#L271-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_#t~ret37, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 652#L90-3 __utac_acc__Specification2_spec__2_#t~ret36 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret36;havoc __utac_acc__Specification2_spec__2_#t~ret36; 795#L493 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 736#L493-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 737#L281 assume { :end_inline_timeShift } true; 703#L193-3 [2018-11-18 14:40:21,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:40:21,373 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 14:40:21,373 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:40:21,373 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:40:21,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:40:21,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:40:21,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:40:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:40:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:40:21,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:40:21,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1703078120, now seen corresponding path program 1 times [2018-11-18 14:40:21,424 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:40:21,424 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:40:21,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:40:21,425 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:40:21,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:40:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:40:21,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:40:21,439 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:40:21,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:40:21,439 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:40:21,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:40:21,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:40:21,440 INFO L87 Difference]: Start difference. First operand 343 states and 457 transitions. cyclomatic complexity: 117 Second operand 3 states. [2018-11-18 14:40:21,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:40:21,533 INFO L93 Difference]: Finished difference Result 477 states and 614 transitions. [2018-11-18 14:40:21,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:40:21,535 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 477 states and 614 transitions. [2018-11-18 14:40:21,539 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 339 [2018-11-18 14:40:21,542 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 477 states to 477 states and 614 transitions. [2018-11-18 14:40:21,542 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 477 [2018-11-18 14:40:21,543 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 477 [2018-11-18 14:40:21,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 477 states and 614 transitions. [2018-11-18 14:40:21,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:40:21,545 INFO L705 BuchiCegarLoop]: Abstraction has 477 states and 614 transitions. [2018-11-18 14:40:21,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states and 614 transitions. [2018-11-18 14:40:21,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 477. [2018-11-18 14:40:21,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2018-11-18 14:40:21,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 614 transitions. [2018-11-18 14:40:21,562 INFO L728 BuchiCegarLoop]: Abstraction has 477 states and 614 transitions. [2018-11-18 14:40:21,562 INFO L608 BuchiCegarLoop]: Abstraction has 477 states and 614 transitions. [2018-11-18 14:40:21,562 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 14:40:21,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 477 states and 614 transitions. [2018-11-18 14:40:21,565 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 339 [2018-11-18 14:40:21,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:40:21,566 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:40:21,567 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:40:21,567 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, 1, 1, 1] [2018-11-18 14:40:21,567 INFO L794 eck$LassoCheckResult]: Stem: 1587#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(13);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 110];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 79];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 44];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 80];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 117];#memory_int := #memory_int[#t~string26.base,3 + #t~string26.offset := 109];#memory_int := #memory_int[#t~string26.base,4 + #t~string26.offset := 112];#memory_int := #memory_int[#t~string26.base,5 + #t~string26.offset := 58];#memory_int := #memory_int[#t~string26.base,6 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 110];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 79];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 102];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 102];#memory_int := #memory_int[#t~string30.base,3 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 41];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 32];#memory_int := #memory_int[#t~string32.base,2 + #t~string32.offset := 0];call #t~string34.base, #t~string34.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string34.base,#t~string34.offset := 10];#memory_int := #memory_int[#t~string34.base,1 + #t~string34.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(21);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(30);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(9);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(25);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1409#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9;assume { :begin_inline_select_helpers } true; 1410#L166 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1491#L159 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 1548#L174 main_#t~ret73 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~9 := main_#t~ret73;havoc main_#t~ret73; 1440#L973 assume 0 != main_~tmp~9;assume { :begin_inline_setup } true; 1441#L949 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1556#L482 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1557#L193-3 [2018-11-18 14:40:21,568 INFO L796 eck$LassoCheckResult]: Loop: 1557#L193-3 assume true; 1675#L193-1 assume !false; 1466#L194 assume test_~splverifierCounter~0 < 4; 1467#L195 test_~tmp~0 := test_#t~nondet11;havoc test_#t~nondet11; 1672#L203 assume !(0 != test_~tmp~0); 1670#L203-2 test_~tmp___0~0 := test_#t~nondet12;havoc test_#t~nondet12; 1668#L213 assume !(0 != test_~tmp___0~0); 1666#L213-2 test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 1665#L223 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet14;havoc test_#t~nondet14; 1664#L231 assume !(0 != test_~tmp___1~0); 1559#L231-2 assume { :begin_inline_timeShift } true; 1584#L264 assume !(0 != ~pumpRunning~0); 1579#L264-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1580#L322 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret15, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1397#L296-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret35, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1398#L130-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1543#L135-1 isHighWaterLevel_#t~ret35 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret35;havoc isHighWaterLevel_#t~ret35; 1555#L441-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1719#L441-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 1718#L447-1 processEnvironment__wrappee__methaneQuery_#t~ret15 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret15;havoc processEnvironment__wrappee__methaneQuery_#t~ret15; 1715#L300-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1712#L288-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1663#L296-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1408#L322-1 assume { :end_inline_processEnvironment } true; 1656#L271-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_#t~ret37, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1657#L90-3 __utac_acc__Specification2_spec__2_#t~ret36 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret36;havoc __utac_acc__Specification2_spec__2_#t~ret36; 1650#L493 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 1648#L493-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1644#L281 assume { :end_inline_timeShift } true; 1557#L193-3 [2018-11-18 14:40:21,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:40:21,568 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 14:40:21,568 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:40:21,568 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:40:21,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:40:21,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:40:21,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:40:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:40:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:40:21,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:40:21,612 INFO L82 PathProgramCache]: Analyzing trace with hash 288802560, now seen corresponding path program 1 times [2018-11-18 14:40:21,612 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:40:21,612 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:40:21,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:40:21,613 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:40:21,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:40:21,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:40:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:40:21,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:40:21,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1195219127, now seen corresponding path program 1 times [2018-11-18 14:40:21,625 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:40:21,625 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:40:21,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:40:21,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:40:21,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:40:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:40:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:40:21,809 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2018-11-18 14:41:03,551 WARN L180 SmtUtils]: Spent 41.63 s on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 14:41:14,770 WARN L180 SmtUtils]: Spent 11.21 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 14:41:14,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 02:41:14 BoogieIcfgContainer [2018-11-18 14:41:14,837 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 14:41:14,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:41:14,838 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:41:14,838 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:41:14,838 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:40:20" (3/4) ... [2018-11-18 14:41:14,841 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 14:41:14,910 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e3603f6c-dce4-4d44-a057-192334a96c15/bin-2019/uautomizer/witness.graphml [2018-11-18 14:41:14,910 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:41:14,910 INFO L168 Benchmark]: Toolchain (without parser) took 55048.23 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 273.7 MB). Free memory was 955.4 MB in the beginning and 1.2 GB in the end (delta: -283.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:41:14,911 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:41:14,911 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 35.3 MB. Max. memory is 11.5 GB. [2018-11-18 14:41:14,912 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.53 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2018-11-18 14:41:14,912 INFO L168 Benchmark]: Boogie Preprocessor took 30.85 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 14:41:14,913 INFO L168 Benchmark]: RCFGBuilder took 629.89 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: 72.9 MB). Peak memory consumption was 72.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:41:14,913 INFO L168 Benchmark]: BuchiAutomizer took 53904.48 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 110.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -181.0 MB). Peak memory consumption was 295.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:41:14,914 INFO L168 Benchmark]: Witness Printer took 72.44 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:41:14,917 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 369.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 35.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.53 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.85 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 629.89 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: 72.9 MB). Peak memory consumption was 72.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 53904.48 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 110.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -181.0 MB). Peak memory consumption was 295.4 MB. Max. memory is 11.5 GB. * Witness Printer took 72.44 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. 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 3 locations. The remainder module has 477 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 53.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 53.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 477 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 477 SDtfs, 416 SDslu, 334 SDs, 0 SdLazy, 41 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 193]: 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, retValue_acc=0, "Env(Water:%i"=16, "OK"=11, "__utac__get_this_arg"=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=20, methaneLevelCritical=0, tmp___0=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b2d7acf=0, "i > 0 && i <= this->argsCount"=8, "__utac__get_this_argtype"=0, retValue_acc=0, tmp___1=0, "Pump(System:"=31, "On"=26, cleanupTimeShifts=4, tmp=0, "\n"=22, NULL=0, systemActive=1, waterLevel=1, "libacc.c"=38, ") "=0, "Off"=0, "__utac__get_this_arg"=18, \result=0, tmp___0=0, "libacc.c"=35, "__utac__get_this_arg"=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, retValue_acc=0, \result=1, head=0, pumpRunning=0, "libacc.c"=17, \result=0, "libacc.c"=36, retValue_acc=1, "__utac__get_this_argtype"=0, "\n"=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@691187e0=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70f400f2=0, "__utac__get_this_argtype"=37, "__utac__get_this_arg"=34, "On"=29, tmp=1, "CRIT"=14, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c550526=0, "Off"=24, ",Pump:"=27, tmp___0=0, splverifierCounter=0, "Env(Water:%i"=0, ",Meth:"=0, "i > 0 && i <= this->argsCount"=0, ")"=0, "OK"=0, "CRIT"=0, methAndRunningLastTime=0, \result=0, ")"=12, "__utac__get_this_argtype"=39, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75c8e6b7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6771d732=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f77274e=0, "i > 0 && i <= this->argsCount"=19, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5553c201=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@716545ed=0, head=0, tmp=0, ",Pump:"=0, "On"=0, "Off"=28, "Off"=0, tmp=1, "Pump(System:"=0, ") "=23, ",Meth:"=15, "On"=0, tmp=0, "i > 0 && i <= this->argsCount"=33, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a4cbba5=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 193]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L99] FCALL "Env(Water:%i" [L100] FCALL ",Meth:" [L104] FCALL "CRIT" [L108] FCALL "OK" [L112] FCALL ")" [L401] FCALL "Pump(System:" [L405] FCALL "On" [L409] FCALL "Off" [L413] FCALL ",Pump:" [L417] FCALL "On" [L421] FCALL "Off" [L425] FCALL ") " [L427] FCALL "\n" [L812] FCALL "i > 0 && i <= this->argsCount" [L812] FCALL "libacc.c" [L813] FCALL "__utac__get_this_arg" [L819] FCALL "i > 0 && i <= this->argsCount" [L819] FCALL "libacc.c" [L820] FCALL "__utac__get_this_arg" [L858] FCALL "i > 0 && i <= this->argsCount" [L858] FCALL "libacc.c" [L859] FCALL "__utac__get_this_argtype" [L865] FCALL "i > 0 && i <= this->argsCount" [L865] FCALL "libacc.c" [L866] FCALL "__utac__get_this_argtype" [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L256] int pumpRunning = 0; [L257] int systemActive = 1; [L476] int methAndRunningLastTime ; [L890] int cleanupTimeShifts = 4; [L684] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L964] int retValue_acc ; [L965] int tmp ; [L969] FCALL select_helpers() [L970] FCALL select_features() [L971] CALL, EXPR valid_product() [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] RET return (retValue_acc); [L971] EXPR valid_product() [L971] tmp = valid_product() [L973] COND TRUE \read(tmp) [L975] FCALL setup() [L976] CALL runTest() [L957] CALL __utac_acc__Specification2_spec__1() [L481] RET methAndRunningLastTime = 0 [L957] __utac_acc__Specification2_spec__1() [L958] CALL test() [L184] int splverifierCounter ; [L185] int tmp ; [L186] int tmp___0 ; [L187] int tmp___1 ; [L188] int tmp___2 ; [L191] splverifierCounter = 0 Loop: [L193] COND TRUE 1 [L195] COND TRUE splverifierCounter < 4 [L201] tmp = __VERIFIER_nondet_int() [L203] COND FALSE !(\read(tmp)) [L211] tmp___0 = __VERIFIER_nondet_int() [L213] COND FALSE !(\read(tmp___0)) [L221] tmp___2 = __VERIFIER_nondet_int() [L223] COND FALSE !(\read(tmp___2)) [L229] tmp___1 = __VERIFIER_nondet_int() [L231] COND FALSE !(\read(tmp___1)) [L240] CALL timeShift() [L264] COND FALSE !(\read(pumpRunning)) [L271] COND TRUE \read(systemActive) [L273] CALL processEnvironment() [L319] int tmp ; [L322] COND FALSE !(\read(pumpRunning)) [L337] CALL processEnvironment__wrappee__methaneQuery() [L293] int tmp ; [L296] COND TRUE ! pumpRunning [L298] CALL, EXPR isHighWaterLevel() [L433] int retValue_acc ; [L434] int tmp ; [L435] int tmp___0 ; [L439] CALL, EXPR isHighWaterSensorDry() [L127] int retValue_acc ; [L130] COND TRUE waterLevel < 2 [L131] retValue_acc = 1 [L132] RET return (retValue_acc); [L439] EXPR isHighWaterSensorDry() [L439] tmp = isHighWaterSensorDry() [L441] COND TRUE \read(tmp) [L442] tmp___0 = 0 [L446] retValue_acc = tmp___0 [L447] RET return (retValue_acc); [L298] EXPR isHighWaterLevel() [L298] tmp = isHighWaterLevel() [L300] COND FALSE !(\read(tmp)) [L306] RET, FCALL processEnvironment__wrappee__base() [L337] RET processEnvironment__wrappee__methaneQuery() [L273] processEnvironment() [L279] CALL __utac_acc__Specification2_spec__2() [L486] int tmp ; [L487] int tmp___0 ; [L491] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] RET return (retValue_acc); [L491] EXPR isMethaneLevelCritical() [L491] tmp = isMethaneLevelCritical() [L493] COND FALSE !(\read(tmp)) [L509] RET methAndRunningLastTime = 0 [L279] RET __utac_acc__Specification2_spec__2() [L240] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...