./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product27_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_64855a53-975b-4498-80f0-ba13cf0d9619/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_64855a53-975b-4498-80f0-ba13cf0d9619/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_64855a53-975b-4498-80f0-ba13cf0d9619/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_64855a53-975b-4498-80f0-ba13cf0d9619/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product27_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_64855a53-975b-4498-80f0-ba13cf0d9619/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_64855a53-975b-4498-80f0-ba13cf0d9619/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 8a86e2c2f9844e6977fd90934a9b91c076ab32f2 .................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:25:00,925 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:25:00,927 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:25:00,935 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:25:00,936 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:25:00,936 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:25:00,937 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:25:00,939 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:25:00,940 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:25:00,940 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:25:00,941 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:25:00,941 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:25:00,942 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:25:00,942 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:25:00,943 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:25:00,943 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:25:00,944 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:25:00,945 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:25:00,946 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:25:00,947 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:25:00,948 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:25:00,949 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:25:00,951 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:25:00,951 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:25:00,951 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:25:00,952 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:25:00,952 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:25:00,953 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:25:00,953 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:25:00,954 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:25:00,954 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:25:00,955 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:25:00,955 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:25:00,955 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:25:00,956 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:25:00,956 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:25:00,957 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_64855a53-975b-4498-80f0-ba13cf0d9619/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 11:25:00,966 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:25:00,966 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:25:00,967 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:25:00,967 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:25:00,967 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:25:00,967 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 11:25:00,967 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 11:25:00,968 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 11:25:00,968 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 11:25:00,968 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 11:25:00,968 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 11:25:00,968 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:25:00,968 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:25:00,969 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 11:25:00,969 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:25:00,969 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:25:00,969 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:25:00,969 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 11:25:00,969 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 11:25:00,969 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 11:25:00,970 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:25:00,970 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:25:00,970 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 11:25:00,970 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:25:00,970 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 11:25:00,970 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:25:00,971 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:25:00,971 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 11:25:00,971 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:25:00,971 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:25:00,971 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 11:25:00,972 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 11:25:00,972 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_64855a53-975b-4498-80f0-ba13cf0d9619/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 -> 8a86e2c2f9844e6977fd90934a9b91c076ab32f2 [2018-11-28 11:25:00,999 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:25:01,008 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:25:01,011 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:25:01,012 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:25:01,012 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:25:01,012 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_64855a53-975b-4498-80f0-ba13cf0d9619/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product27_true-unreach-call_false-termination.cil.c [2018-11-28 11:25:01,055 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_64855a53-975b-4498-80f0-ba13cf0d9619/bin-2019/uautomizer/data/85eb55d6f/8e9311aa352647ad9e10919adcfe6b14/FLAG20a4b4e0e [2018-11-28 11:25:01,504 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:25:01,504 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_64855a53-975b-4498-80f0-ba13cf0d9619/sv-benchmarks/c/product-lines/minepump_spec5_product27_true-unreach-call_false-termination.cil.c [2018-11-28 11:25:01,514 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_64855a53-975b-4498-80f0-ba13cf0d9619/bin-2019/uautomizer/data/85eb55d6f/8e9311aa352647ad9e10919adcfe6b14/FLAG20a4b4e0e [2018-11-28 11:25:01,524 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_64855a53-975b-4498-80f0-ba13cf0d9619/bin-2019/uautomizer/data/85eb55d6f/8e9311aa352647ad9e10919adcfe6b14 [2018-11-28 11:25:01,526 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:25:01,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:25:01,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:25:01,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:25:01,530 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:25:01,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:25:01" (1/1) ... [2018-11-28 11:25:01,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@246385e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:01, skipping insertion in model container [2018-11-28 11:25:01,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:25:01" (1/1) ... [2018-11-28 11:25:01,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:25:01,564 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:25:01,754 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:25:01,813 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:25:01,868 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:25:01,885 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:25:01,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:01 WrapperNode [2018-11-28 11:25:01,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:25:01,886 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:25:01,886 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:25:01,886 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:25:01,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:01" (1/1) ... [2018-11-28 11:25:01,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:01" (1/1) ... [2018-11-28 11:25:01,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:25:01,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:25:01,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:25:01,931 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:25:01,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:01" (1/1) ... [2018-11-28 11:25:01,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:01" (1/1) ... [2018-11-28 11:25:01,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:01" (1/1) ... [2018-11-28 11:25:01,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:01" (1/1) ... [2018-11-28 11:25:01,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:01" (1/1) ... [2018-11-28 11:25:01,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:01" (1/1) ... [2018-11-28 11:25:01,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:01" (1/1) ... [2018-11-28 11:25:01,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:25:01,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:25:01,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:25:01,957 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:25:01,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_64855a53-975b-4498-80f0-ba13cf0d9619/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 11:25:02,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 11:25:02,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 11:25:02,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:25:02,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:25:02,464 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:25:02,465 INFO L280 CfgBuilder]: Removed 114 assue(true) statements. [2018-11-28 11:25:02,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:25:02 BoogieIcfgContainer [2018-11-28 11:25:02,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:25:02,466 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 11:25:02,466 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 11:25:02,468 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 11:25:02,469 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:25:02,469 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:25:01" (1/3) ... [2018-11-28 11:25:02,470 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ed1b093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:25:02, skipping insertion in model container [2018-11-28 11:25:02,470 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:25:02,470 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:25:01" (2/3) ... [2018-11-28 11:25:02,470 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ed1b093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:25:02, skipping insertion in model container [2018-11-28 11:25:02,471 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:25:02,471 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:25:02" (3/3) ... [2018-11-28 11:25:02,472 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product27_true-unreach-call_false-termination.cil.c [2018-11-28 11:25:02,503 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:25:02,504 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 11:25:02,504 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 11:25:02,504 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 11:25:02,504 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:25:02,504 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:25:02,504 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 11:25:02,504 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:25:02,504 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 11:25:02,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states. [2018-11-28 11:25:02,532 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2018-11-28 11:25:02,532 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:25:02,532 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:25:02,537 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:25:02,537 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:25:02,538 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 11:25:02,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states. [2018-11-28 11:25:02,540 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2018-11-28 11:25:02,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:25:02,540 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:25:02,541 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:25:02,541 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:25:02,544 INFO L794 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(30);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(9);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);~cleanupTimeShifts~0 := 4;~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); 16#L-1true havoc main_#res;havoc main_#t~ret49, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 18#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 13#L73true main_#t~ret49 := valid_product_#res;main_~tmp~4 := main_#t~ret49;havoc main_#t~ret49; 63#L686true assume 0 != main_~tmp~4; 12#L661true ~switchedOnBeforeTS~0 := 0; 19#L87true 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; 73#L108-1true [2018-11-28 11:25:02,545 INFO L796 eck$LassoCheckResult]: Loop: 73#L108-1true assume !false; 74#L712true assume test_~splverifierCounter~0 < 4; 17#L713true test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 37#L721true assume !(0 != test_~tmp~5); 39#L721-1true test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 23#L731true assume !(0 != test_~tmp___0~1); 25#L731-1true test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 83#L741true assume 0 != test_~tmp___2~0; 50#L747-1true 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; 55#L883true __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; 76#L97true assume !(0 != ~pumpRunning~0); 44#L780true assume !(0 != ~systemActive~0); 33#L787true havoc __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_#t~ret3, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 9#L577true __utac_acc__Specification5_spec__3_#t~ret2 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 78#L108true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 73#L108-1true [2018-11-28 11:25:02,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:25:02,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2018-11-28 11:25:02,551 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:25:02,551 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:25:02,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:25:02,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:25:02,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:25:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:25:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:25:02,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:25:02,702 INFO L82 PathProgramCache]: Analyzing trace with hash -241953451, now seen corresponding path program 1 times [2018-11-28 11:25:02,702 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:25:02,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:25:02,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:25:02,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:25:02,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:25:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:25:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:25:02,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:25:02,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1692071759, now seen corresponding path program 1 times [2018-11-28 11:25:02,715 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:25:02,716 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:25:02,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:25:02,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:25:02,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:25:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:25:02,820 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 11:25:02,822 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:25:02,822 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 11:25:02,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 11:25:02,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-28 11:25:02,933 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 6 states. [2018-11-28 11:25:03,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:25:03,057 INFO L93 Difference]: Finished difference Result 217 states and 298 transitions. [2018-11-28 11:25:03,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 11:25:03,059 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 217 states and 298 transitions. [2018-11-28 11:25:03,064 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 139 [2018-11-28 11:25:03,070 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 217 states to 196 states and 277 transitions. [2018-11-28 11:25:03,071 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 196 [2018-11-28 11:25:03,072 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 196 [2018-11-28 11:25:03,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 196 states and 277 transitions. [2018-11-28 11:25:03,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 11:25:03,073 INFO L705 BuchiCegarLoop]: Abstraction has 196 states and 277 transitions. [2018-11-28 11:25:03,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states and 277 transitions. [2018-11-28 11:25:03,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 125. [2018-11-28 11:25:03,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-11-28 11:25:03,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 176 transitions. [2018-11-28 11:25:03,105 INFO L728 BuchiCegarLoop]: Abstraction has 125 states and 176 transitions. [2018-11-28 11:25:03,105 INFO L608 BuchiCegarLoop]: Abstraction has 125 states and 176 transitions. [2018-11-28 11:25:03,105 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 11:25:03,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 176 transitions. [2018-11-28 11:25:03,107 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2018-11-28 11:25:03,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:25:03,107 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:25:03,107 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:25:03,108 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:25:03,108 INFO L794 eck$LassoCheckResult]: Stem: 364#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(30);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(9);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);~cleanupTimeShifts~0 := 4;~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); 342#L-1 havoc main_#res;havoc main_#t~ret49, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 343#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 337#L73 main_#t~ret49 := valid_product_#res;main_~tmp~4 := main_#t~ret49;havoc main_#t~ret49; 338#L686 assume 0 != main_~tmp~4; 335#L661 ~switchedOnBeforeTS~0 := 0; 336#L87 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; 326#L108-1 [2018-11-28 11:25:03,108 INFO L796 eck$LassoCheckResult]: Loop: 326#L108-1 assume !false; 392#L712 assume test_~splverifierCounter~0 < 4; 344#L713 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 345#L721 assume !(0 != test_~tmp~5); 366#L721-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 350#L731 assume !(0 != test_~tmp___0~1); 352#L731-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 353#L741 assume 0 != test_~tmp___2~0; 376#L747-1 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; 377#L883 __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; 378#L97 assume !(0 != ~pumpRunning~0); 347#L780 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 356#L812 assume !(0 != ~pumpRunning~0); 358#L787 havoc __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_#t~ret3, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 329#L577 __utac_acc__Specification5_spec__3_#t~ret2 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 330#L108 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 326#L108-1 [2018-11-28 11:25:03,108 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:25:03,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2018-11-28 11:25:03,108 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:25:03,109 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:25:03,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:25:03,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:25:03,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:25:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:25:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:25:03,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:25:03,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1062384515, now seen corresponding path program 1 times [2018-11-28 11:25:03,151 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:25:03,151 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:25:03,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:25:03,152 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:25:03,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:25:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:25:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:25:03,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:25:03,161 INFO L82 PathProgramCache]: Analyzing trace with hash 887623881, now seen corresponding path program 1 times [2018-11-28 11:25:03,161 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:25:03,161 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:25:03,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:25:03,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:25:03,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:25:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:25:03,210 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 11:25:03,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:25:03,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:25:03,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 11:25:03,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:25:03,275 INFO L87 Difference]: Start difference. First operand 125 states and 176 transitions. cyclomatic complexity: 54 Second operand 5 states. [2018-11-28 11:25:03,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:25:03,413 INFO L93 Difference]: Finished difference Result 338 states and 468 transitions. [2018-11-28 11:25:03,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 11:25:03,414 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 338 states and 468 transitions. [2018-11-28 11:25:03,417 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 170 [2018-11-28 11:25:03,420 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 338 states to 338 states and 468 transitions. [2018-11-28 11:25:03,420 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 338 [2018-11-28 11:25:03,421 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 338 [2018-11-28 11:25:03,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 338 states and 468 transitions. [2018-11-28 11:25:03,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 11:25:03,423 INFO L705 BuchiCegarLoop]: Abstraction has 338 states and 468 transitions. [2018-11-28 11:25:03,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states and 468 transitions. [2018-11-28 11:25:03,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 243. [2018-11-28 11:25:03,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2018-11-28 11:25:03,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 331 transitions. [2018-11-28 11:25:03,434 INFO L728 BuchiCegarLoop]: Abstraction has 243 states and 331 transitions. [2018-11-28 11:25:03,435 INFO L608 BuchiCegarLoop]: Abstraction has 243 states and 331 transitions. [2018-11-28 11:25:03,435 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 11:25:03,435 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 243 states and 331 transitions. [2018-11-28 11:25:03,436 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 170 [2018-11-28 11:25:03,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:25:03,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:25:03,437 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:25:03,437 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:25:03,437 INFO L794 eck$LassoCheckResult]: Stem: 844#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(30);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(9);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);~cleanupTimeShifts~0 := 4;~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); 821#L-1 havoc main_#res;havoc main_#t~ret49, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 822#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 816#L73 main_#t~ret49 := valid_product_#res;main_~tmp~4 := main_#t~ret49;havoc main_#t~ret49; 817#L686 assume 0 != main_~tmp~4; 814#L661 ~switchedOnBeforeTS~0 := 0; 815#L87 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; 805#L108-1 [2018-11-28 11:25:03,438 INFO L796 eck$LassoCheckResult]: Loop: 805#L108-1 assume !false; 889#L712 assume test_~splverifierCounter~0 < 4; 890#L713 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 969#L721 assume !(0 != test_~tmp~5); 968#L721-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 967#L731 assume !(0 != test_~tmp___0~1); 965#L731-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 963#L741 assume 0 != test_~tmp___2~0; 962#L747-1 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; 960#L883 __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; 958#L97 assume !(0 != ~pumpRunning~0); 956#L780 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 938#L812 assume !(0 != ~pumpRunning~0); 953#L787 havoc __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_#t~ret3, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 952#L577 __utac_acc__Specification5_spec__3_#t~ret2 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 893#L108 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 894#L883-1 __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; 884#L112 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 805#L108-1 [2018-11-28 11:25:03,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:25:03,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2018-11-28 11:25:03,438 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:25:03,438 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:25:03,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:25:03,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:25:03,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:25:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:25:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:25:03,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:25:03,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1250711394, now seen corresponding path program 1 times [2018-11-28 11:25:03,470 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:25:03,470 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:25:03,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:25:03,470 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:25:03,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:25:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:25:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:25:03,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:25:03,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1691956124, now seen corresponding path program 1 times [2018-11-28 11:25:03,477 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:25:03,478 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:25:03,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:25:03,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:25:03,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:25:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:25:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:25:03,631 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2018-11-28 11:25:07,214 WARN L180 SmtUtils]: Spent 3.53 s on a formula simplification. DAG size of input: 429 DAG size of output: 427 [2018-11-28 11:25:08,910 WARN L180 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 425 [2018-11-28 11:25:08,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:25:08 BoogieIcfgContainer [2018-11-28 11:25:08,944 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 11:25:08,945 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:25:08,945 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:25:08,945 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:25:08,946 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:25:02" (3/4) ... [2018-11-28 11:25:08,948 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 11:25:08,986 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_64855a53-975b-4498-80f0-ba13cf0d9619/bin-2019/uautomizer/witness.graphml [2018-11-28 11:25:08,986 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:25:08,986 INFO L168 Benchmark]: Toolchain (without parser) took 7459.70 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 328.2 MB). Free memory was 950.6 MB in the beginning and 891.2 MB in the end (delta: 59.4 MB). Peak memory consumption was 387.6 MB. Max. memory is 11.5 GB. [2018-11-28 11:25:08,987 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:25:08,987 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-11-28 11:25:08,988 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.06 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 11:25:08,988 INFO L168 Benchmark]: Boogie Preprocessor took 26.34 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 11:25:08,988 INFO L168 Benchmark]: RCFGBuilder took 508.27 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: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:25:08,989 INFO L168 Benchmark]: BuchiAutomizer took 6479.05 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 171.4 MB). Free memory was 1.1 GB in the beginning and 891.2 MB in the end (delta: 193.6 MB). Peak memory consumption was 373.0 MB. Max. memory is 11.5 GB. [2018-11-28 11:25:08,989 INFO L168 Benchmark]: Witness Printer took 41.05 ms. Allocated memory is still 1.4 GB. Free memory was 891.2 MB in the beginning and 891.2 MB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-11-28 11:25:08,991 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 357.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.06 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 26.34 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 508.27 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: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 6479.05 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 171.4 MB). Free memory was 1.1 GB in the beginning and 891.2 MB in the end (delta: 193.6 MB). Peak memory consumption was 373.0 MB. Max. memory is 11.5 GB. * Witness Printer took 41.05 ms. Allocated memory is still 1.4 GB. Free memory was 891.2 MB in the beginning and 891.2 MB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 243 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 6.0s. 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, 166 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 243 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 278 SDtfs, 861 SDslu, 849 SDs, 0 SdLazy, 120 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a050e02=0, NULL=12, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=38, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70a21eb5=0, NULL=39, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@aeb3b17=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1497931f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34f2f884=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7deeb4d1=0, tmp=0, NULL=0, NULL=20, NULL=0, NULL=45, tmp___1=0, tmp=1, NULL=29, NULL=17, retValue_acc=0, cleanupTimeShifts=4, NULL=19, switchedOnBeforeTS=0, NULL=27, NULL=23, NULL=15, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66fb8297=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=11, NULL=14, NULL=43, NULL=0, tmp___0=0, \result=1, head=0, pumpRunning=0, \result=0, tmp=1, NULL=0, NULL=42, NULL=0, NULL=0, NULL=0, NULL=0, NULL=18, NULL=8, NULL=31, NULL=0, retValue_acc=1, retValue_acc=1, tmp___2=56, tmp___0=0, NULL=26, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70c37b17=0, NULL=37, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d62ccbc=0, head=0, NULL=0, NULL=28, NULL=0, tmp=0, NULL=24, NULL=22, NULL=0, NULL=0, NULL=16, NULL=40, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L81] int switchedOnBeforeTS ; [L299] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L502] int waterLevel = 1; [L503] int methaneLevelCritical = 0; [L600] int cleanupTimeShifts = 4; [L770] int pumpRunning = 0; [L771] int systemActive = 1; [L677] int retValue_acc ; [L678] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L684] tmp = valid_product() [L686] COND TRUE \read(tmp) [L86] 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) [L879] int retValue_acc ; [L882] retValue_acc = pumpRunning [L883] return (retValue_acc); [L95] switchedOnBeforeTS = isPumpRunning() [L780] COND FALSE !(\read(pumpRunning)) [L787] COND TRUE \read(systemActive) [L809] int tmp ; [L812] COND FALSE !(\read(pumpRunning)) [L101] int tmp ; [L102] int tmp___0 ; [L573] int retValue_acc ; [L576] retValue_acc = waterLevel [L577] return (retValue_acc); [L106] tmp = getWaterLevel() [L108] COND TRUE tmp != 2 [L879] int retValue_acc ; [L882] retValue_acc = pumpRunning [L883] return (retValue_acc); [L110] tmp___0 = isPumpRunning() [L112] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...