./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product51_false-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_1cd1dd73-cffe-485a-bc0e-e2fa6ffa9fc1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1cd1dd73-cffe-485a-bc0e-e2fa6ffa9fc1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1cd1dd73-cffe-485a-bc0e-e2fa6ffa9fc1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1cd1dd73-cffe-485a-bc0e-e2fa6ffa9fc1/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product51_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1cd1dd73-cffe-485a-bc0e-e2fa6ffa9fc1/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1cd1dd73-cffe-485a-bc0e-e2fa6ffa9fc1/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 9033da3093a23b8640383fad25d5fd5dfea2cc28 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:08:43,905 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:08:43,906 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:08:43,913 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:08:43,913 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:08:43,914 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:08:43,914 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:08:43,916 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:08:43,917 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:08:43,917 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:08:43,918 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:08:43,918 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:08:43,919 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:08:43,919 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:08:43,920 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:08:43,920 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:08:43,921 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:08:43,922 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:08:43,924 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:08:43,925 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:08:43,925 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:08:43,926 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:08:43,928 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:08:43,928 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:08:43,928 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:08:43,929 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:08:43,929 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:08:43,930 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:08:43,931 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:08:43,931 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:08:43,931 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:08:43,932 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:08:43,932 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:08:43,932 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:08:43,933 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:08:43,933 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:08:43,933 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1cd1dd73-cffe-485a-bc0e-e2fa6ffa9fc1/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 14:08:43,944 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:08:43,944 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:08:43,945 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:08:43,945 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:08:43,945 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:08:43,945 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 14:08:43,945 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 14:08:43,945 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 14:08:43,945 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 14:08:43,946 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 14:08:43,946 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 14:08:43,946 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:08:43,946 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:08:43,946 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:08:43,946 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:08:43,946 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:08:43,946 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:08:43,946 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 14:08:43,947 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 14:08:43,947 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 14:08:43,947 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:08:43,947 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:08:43,947 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 14:08:43,947 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:08:43,947 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 14:08:43,947 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:08:43,947 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:08:43,948 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 14:08:43,948 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:08:43,948 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:08:43,948 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 14:08:43,948 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 14:08:43,948 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_1cd1dd73-cffe-485a-bc0e-e2fa6ffa9fc1/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 -> 9033da3093a23b8640383fad25d5fd5dfea2cc28 [2018-11-18 14:08:43,973 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:08:43,982 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:08:43,985 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:08:43,986 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:08:43,986 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:08:43,987 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1cd1dd73-cffe-485a-bc0e-e2fa6ffa9fc1/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product51_false-unreach-call_false-termination.cil.c [2018-11-18 14:08:44,031 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1cd1dd73-cffe-485a-bc0e-e2fa6ffa9fc1/bin-2019/uautomizer/data/4a8f5ccbf/c0aa575d993442428e16a97ef7b72bfd/FLAGa97679597 [2018-11-18 14:08:44,489 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:08:44,490 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1cd1dd73-cffe-485a-bc0e-e2fa6ffa9fc1/sv-benchmarks/c/product-lines/minepump_spec3_product51_false-unreach-call_false-termination.cil.c [2018-11-18 14:08:44,500 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1cd1dd73-cffe-485a-bc0e-e2fa6ffa9fc1/bin-2019/uautomizer/data/4a8f5ccbf/c0aa575d993442428e16a97ef7b72bfd/FLAGa97679597 [2018-11-18 14:08:45,005 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1cd1dd73-cffe-485a-bc0e-e2fa6ffa9fc1/bin-2019/uautomizer/data/4a8f5ccbf/c0aa575d993442428e16a97ef7b72bfd [2018-11-18 14:08:45,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:08:45,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:08:45,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:08:45,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:08:45,011 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:08:45,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:08:45" (1/1) ... [2018-11-18 14:08:45,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae3123c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:08:45, skipping insertion in model container [2018-11-18 14:08:45,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:08:45" (1/1) ... [2018-11-18 14:08:45,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:08:45,050 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:08:45,242 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:08:45,251 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:08:45,350 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:08:45,366 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:08:45,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:08:45 WrapperNode [2018-11-18 14:08:45,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:08:45,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:08:45,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:08:45,367 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:08:45,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:08:45" (1/1) ... [2018-11-18 14:08:45,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:08:45" (1/1) ... [2018-11-18 14:08:45,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:08:45,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:08:45,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:08:45,415 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:08:45,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:08:45" (1/1) ... [2018-11-18 14:08:45,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:08:45" (1/1) ... [2018-11-18 14:08:45,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:08:45" (1/1) ... [2018-11-18 14:08:45,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:08:45" (1/1) ... [2018-11-18 14:08:45,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:08:45" (1/1) ... [2018-11-18 14:08:45,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:08:45" (1/1) ... [2018-11-18 14:08:45,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:08:45" (1/1) ... [2018-11-18 14:08:45,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:08:45,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:08:45,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:08:45,448 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:08:45,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:08:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1cd1dd73-cffe-485a-bc0e-e2fa6ffa9fc1/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 14:08:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:08:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:08:45,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:08:46,031 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:08:46,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:08:46 BoogieIcfgContainer [2018-11-18 14:08:46,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:08:46,032 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 14:08:46,032 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 14:08:46,034 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 14:08:46,035 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:08:46,035 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 02:08:45" (1/3) ... [2018-11-18 14:08:46,036 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62e40b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:08:46, skipping insertion in model container [2018-11-18 14:08:46,036 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:08:46,036 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:08:45" (2/3) ... [2018-11-18 14:08:46,037 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62e40b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:08:46, skipping insertion in model container [2018-11-18 14:08:46,037 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:08:46,037 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:08:46" (3/3) ... [2018-11-18 14:08:46,038 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product51_false-unreach-call_false-termination.cil.c [2018-11-18 14:08:46,071 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:08:46,072 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 14:08:46,072 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 14:08:46,072 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 14:08:46,072 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:08:46,072 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:08:46,072 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 14:08:46,072 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:08:46,072 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 14:08:46,085 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states. [2018-11-18 14:08:46,107 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2018-11-18 14:08:46,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:08:46,107 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:08:46,114 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:08:46,114 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:08:46,114 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 14:08:46,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states. [2018-11-18 14:08:46,120 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2018-11-18 14:08:46,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:08:46,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:08:46,121 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:08:46,121 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:08:46,125 INFO L794 eck$LassoCheckResult]: Stem: 103#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~string18.base, #t~string18.offset := #Ultimate.alloc(13);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 79];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 110];#memory_int := #memory_int[#t~string20.base,2 + #t~string20.offset := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,3 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 44];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 80];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 117];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 109];#memory_int := #memory_int[#t~string24.base,4 + #t~string24.offset := 112];#memory_int := #memory_int[#t~string24.base,5 + #t~string24.offset := 58];#memory_int := #memory_int[#t~string24.base,6 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 79];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 110];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,3 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 41];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 32];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 10];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(30);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(9);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(21);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(30);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(9);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6;assume { :begin_inline_select_helpers } true; 132#L594true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 60#L587true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 173#L602true main_#t~ret38 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~6 := main_#t~ret38;havoc main_#t~ret38; 144#L558true assume 0 != main_~tmp~6;assume { :begin_inline_setup } true; 38#L532true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, 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; 7#L164-3true [2018-11-18 14:08:46,126 INFO L796 eck$LassoCheckResult]: Loop: 7#L164-3true assume true; 10#L164-1true assume !false; 86#L165true assume test_~splverifierCounter~0 < 4; 32#L166true test_~tmp~0 := test_#t~nondet10;havoc test_#t~nondet10; 68#L174true assume !(0 != test_~tmp~0); 64#L174-2true test_~tmp___0~0 := test_#t~nondet11;havoc test_#t~nondet11; 137#L184true assume !(0 != test_~tmp___0~0); 131#L184-2true test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 26#L194true assume 0 != test_~tmp___2~0; 148#L200-2true assume { :begin_inline_timeShift } true; 158#L233true assume !(0 != ~pumpRunning~0); 152#L233-2true assume !(0 != ~systemActive~0); 56#L240-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret35, __utac_acc__Specification3_spec__1_#t~ret36, __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 76#L91true __utac_acc__Specification3_spec__1_#t~ret35 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret35;havoc __utac_acc__Specification3_spec__1_#t~ret35; 156#L448true assume 0 != __utac_acc__Specification3_spec__1_~tmp~5; 111#L454-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 116#L250true assume { :end_inline_timeShift } true; 7#L164-3true [2018-11-18 14:08:46,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:08:46,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 14:08:46,131 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:08:46,131 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:08:46,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:46,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:08:46,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:08:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:08:46,283 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:08:46,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1255960091, now seen corresponding path program 1 times [2018-11-18 14:08:46,283 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:08:46,283 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:08:46,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:46,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:08:46,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:08:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:08:46,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:08:46,297 INFO L82 PathProgramCache]: Analyzing trace with hash 2107325601, now seen corresponding path program 1 times [2018-11-18 14:08:46,297 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:08:46,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:08:46,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:46,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:08:46,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:08:46,416 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 14:08:46,418 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:08:46,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:08:46,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:08:46,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:08:46,500 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 6 states. [2018-11-18 14:08:46,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:08:46,665 INFO L93 Difference]: Finished difference Result 407 states and 536 transitions. [2018-11-18 14:08:46,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:08:46,667 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 407 states and 536 transitions. [2018-11-18 14:08:46,674 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 265 [2018-11-18 14:08:46,681 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 407 states to 377 states and 506 transitions. [2018-11-18 14:08:46,682 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 377 [2018-11-18 14:08:46,683 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 377 [2018-11-18 14:08:46,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 377 states and 506 transitions. [2018-11-18 14:08:46,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:08:46,686 INFO L705 BuchiCegarLoop]: Abstraction has 377 states and 506 transitions. [2018-11-18 14:08:46,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states and 506 transitions. [2018-11-18 14:08:46,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 221. [2018-11-18 14:08:46,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-11-18 14:08:46,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 296 transitions. [2018-11-18 14:08:46,717 INFO L728 BuchiCegarLoop]: Abstraction has 221 states and 296 transitions. [2018-11-18 14:08:46,717 INFO L608 BuchiCegarLoop]: Abstraction has 221 states and 296 transitions. [2018-11-18 14:08:46,717 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 14:08:46,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 221 states and 296 transitions. [2018-11-18 14:08:46,719 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 156 [2018-11-18 14:08:46,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:08:46,720 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:08:46,721 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:08:46,721 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] [2018-11-18 14:08:46,721 INFO L794 eck$LassoCheckResult]: Stem: 725#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~string18.base, #t~string18.offset := #Ultimate.alloc(13);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 79];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 110];#memory_int := #memory_int[#t~string20.base,2 + #t~string20.offset := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,3 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 44];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 80];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 117];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 109];#memory_int := #memory_int[#t~string24.base,4 + #t~string24.offset := 112];#memory_int := #memory_int[#t~string24.base,5 + #t~string24.offset := 58];#memory_int := #memory_int[#t~string24.base,6 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 79];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 110];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,3 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 41];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 32];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 10];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(30);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(9);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(21);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(30);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(9);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 601#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6;assume { :begin_inline_select_helpers } true; 602#L594 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 675#L587 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 676#L602 main_#t~ret38 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~6 := main_#t~ret38;havoc main_#t~ret38; 745#L558 assume 0 != main_~tmp~6;assume { :begin_inline_setup } true; 657#L532 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, 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; 607#L164-3 [2018-11-18 14:08:46,721 INFO L796 eck$LassoCheckResult]: Loop: 607#L164-3 assume true; 608#L164-1 assume !false; 613#L165 assume test_~splverifierCounter~0 < 4; 646#L166 test_~tmp~0 := test_#t~nondet10;havoc test_#t~nondet10; 647#L174 assume !(0 != test_~tmp~0); 682#L174-2 test_~tmp___0~0 := test_#t~nondet11;havoc test_#t~nondet11; 683#L184 assume !(0 != test_~tmp___0~0); 665#L184-2 test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 636#L194 assume 0 != test_~tmp___2~0; 637#L200-2 assume { :begin_inline_timeShift } true; 751#L233 assume !(0 != ~pumpRunning~0); 753#L233-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 754#L291 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 649#L265-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 630#L257-3 assume { :end_inline_processEnvironment__wrappee__base } true; 631#L265-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 648#L291-1 assume { :end_inline_processEnvironment } true; 669#L240-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret35, __utac_acc__Specification3_spec__1_#t~ret36, __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 670#L91 __utac_acc__Specification3_spec__1_#t~ret35 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret35;havoc __utac_acc__Specification3_spec__1_#t~ret35; 696#L448 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5; 654#L454-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 729#L250 assume { :end_inline_timeShift } true; 607#L164-3 [2018-11-18 14:08:46,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:08:46,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 14:08:46,722 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:08:46,722 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:08:46,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:46,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:08:46,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:08:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:08:46,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:08:46,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1698051538, now seen corresponding path program 1 times [2018-11-18 14:08:46,765 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:08:46,766 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:08:46,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:46,767 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:08:46,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:08:46,790 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 14:08:46,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:08:46,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:08:46,790 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:08:46,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:08:46,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:08:46,791 INFO L87 Difference]: Start difference. First operand 221 states and 296 transitions. cyclomatic complexity: 78 Second operand 3 states. [2018-11-18 14:08:46,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:08:46,889 INFO L93 Difference]: Finished difference Result 279 states and 358 transitions. [2018-11-18 14:08:46,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:08:46,890 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 279 states and 358 transitions. [2018-11-18 14:08:46,892 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 201 [2018-11-18 14:08:46,894 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 279 states to 279 states and 358 transitions. [2018-11-18 14:08:46,894 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 279 [2018-11-18 14:08:46,894 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 279 [2018-11-18 14:08:46,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 279 states and 358 transitions. [2018-11-18 14:08:46,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:08:46,896 INFO L705 BuchiCegarLoop]: Abstraction has 279 states and 358 transitions. [2018-11-18 14:08:46,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states and 358 transitions. [2018-11-18 14:08:46,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2018-11-18 14:08:46,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2018-11-18 14:08:46,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 358 transitions. [2018-11-18 14:08:46,904 INFO L728 BuchiCegarLoop]: Abstraction has 279 states and 358 transitions. [2018-11-18 14:08:46,904 INFO L608 BuchiCegarLoop]: Abstraction has 279 states and 358 transitions. [2018-11-18 14:08:46,905 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 14:08:46,905 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 358 transitions. [2018-11-18 14:08:46,906 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 201 [2018-11-18 14:08:46,906 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:08:46,907 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:08:46,907 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:08:46,907 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] [2018-11-18 14:08:46,907 INFO L794 eck$LassoCheckResult]: Stem: 1236#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~string18.base, #t~string18.offset := #Ultimate.alloc(13);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 79];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 110];#memory_int := #memory_int[#t~string20.base,2 + #t~string20.offset := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,3 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 44];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 80];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 117];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 109];#memory_int := #memory_int[#t~string24.base,4 + #t~string24.offset := 112];#memory_int := #memory_int[#t~string24.base,5 + #t~string24.offset := 58];#memory_int := #memory_int[#t~string24.base,6 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 79];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 110];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,3 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 41];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 32];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 10];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(30);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(9);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(21);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(30);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(9);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1107#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6;assume { :begin_inline_select_helpers } true; 1108#L594 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1183#L587 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1184#L602 main_#t~ret38 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~6 := main_#t~ret38;havoc main_#t~ret38; 1260#L558 assume 0 != main_~tmp~6;assume { :begin_inline_setup } true; 1160#L532 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, 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; 1115#L164-3 [2018-11-18 14:08:46,908 INFO L796 eck$LassoCheckResult]: Loop: 1115#L164-3 assume true; 1116#L164-1 assume !false; 1121#L165 assume test_~splverifierCounter~0 < 4; 1218#L166 test_~tmp~0 := test_#t~nondet10;havoc test_#t~nondet10; 1382#L174 assume !(0 != test_~tmp~0); 1380#L174-2 test_~tmp___0~0 := test_#t~nondet11;havoc test_#t~nondet11; 1378#L184 assume !(0 != test_~tmp___0~0); 1376#L184-2 test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 1374#L194 assume 0 != test_~tmp___2~0; 1265#L200-2 assume { :begin_inline_timeShift } true; 1266#L233 assume !(0 != ~pumpRunning~0); 1269#L233-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1270#L291 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 1154#L265-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1117#L131-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1118#L136-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 1130#L393-3 assume !(0 != isHighWaterLevel_~tmp~3);isHighWaterLevel_~tmp___0~1 := 1; 1243#L393-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1219#L399-1 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 1220#L269-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1161#L257-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1152#L265-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1153#L291-1 assume { :end_inline_processEnvironment } true; 1176#L240-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret35, __utac_acc__Specification3_spec__1_#t~ret36, __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 1177#L91 __utac_acc__Specification3_spec__1_#t~ret35 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret35;havoc __utac_acc__Specification3_spec__1_#t~ret35; 1206#L448 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5; 1159#L454-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1240#L250 assume { :end_inline_timeShift } true; 1115#L164-3 [2018-11-18 14:08:46,908 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:08:46,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 14:08:46,908 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:08:46,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:08:46,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:46,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:08:46,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:08:46,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:08:46,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:08:46,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1695540280, now seen corresponding path program 1 times [2018-11-18 14:08:46,944 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:08:46,944 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:08:46,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:46,945 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:08:46,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:08:46,964 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 14:08:46,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:08:46,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 14:08:46,965 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:08:46,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 14:08:46,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 14:08:46,966 INFO L87 Difference]: Start difference. First operand 279 states and 358 transitions. cyclomatic complexity: 82 Second operand 4 states. [2018-11-18 14:08:47,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:08:47,110 INFO L93 Difference]: Finished difference Result 545 states and 691 transitions. [2018-11-18 14:08:47,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 14:08:47,110 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 545 states and 691 transitions. [2018-11-18 14:08:47,114 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 398 [2018-11-18 14:08:47,117 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 545 states to 545 states and 691 transitions. [2018-11-18 14:08:47,117 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 545 [2018-11-18 14:08:47,118 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 545 [2018-11-18 14:08:47,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 545 states and 691 transitions. [2018-11-18 14:08:47,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:08:47,120 INFO L705 BuchiCegarLoop]: Abstraction has 545 states and 691 transitions. [2018-11-18 14:08:47,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states and 691 transitions. [2018-11-18 14:08:47,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 291. [2018-11-18 14:08:47,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2018-11-18 14:08:47,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 370 transitions. [2018-11-18 14:08:47,130 INFO L728 BuchiCegarLoop]: Abstraction has 291 states and 370 transitions. [2018-11-18 14:08:47,130 INFO L608 BuchiCegarLoop]: Abstraction has 291 states and 370 transitions. [2018-11-18 14:08:47,130 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 14:08:47,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 291 states and 370 transitions. [2018-11-18 14:08:47,132 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 209 [2018-11-18 14:08:47,132 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:08:47,132 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:08:47,132 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:08:47,132 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] [2018-11-18 14:08:47,133 INFO L794 eck$LassoCheckResult]: Stem: 2077#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~string18.base, #t~string18.offset := #Ultimate.alloc(13);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 79];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 110];#memory_int := #memory_int[#t~string20.base,2 + #t~string20.offset := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,3 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 44];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 80];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 117];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 109];#memory_int := #memory_int[#t~string24.base,4 + #t~string24.offset := 112];#memory_int := #memory_int[#t~string24.base,5 + #t~string24.offset := 58];#memory_int := #memory_int[#t~string24.base,6 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 79];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 110];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,3 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 41];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 32];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 10];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(30);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(9);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(21);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(30);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(9);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1939#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6;assume { :begin_inline_select_helpers } true; 1940#L594 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2022#L587 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 2023#L602 main_#t~ret38 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~6 := main_#t~ret38;havoc main_#t~ret38; 2108#L558 assume 0 != main_~tmp~6;assume { :begin_inline_setup } true; 1999#L532 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, 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; 1949#L164-3 [2018-11-18 14:08:47,133 INFO L796 eck$LassoCheckResult]: Loop: 1949#L164-3 assume true; 1950#L164-1 assume !false; 1957#L165 assume test_~splverifierCounter~0 < 4; 2059#L166 test_~tmp~0 := test_#t~nondet10;havoc test_#t~nondet10; 2216#L174 assume !(0 != test_~tmp~0); 2215#L174-2 test_~tmp___0~0 := test_#t~nondet11;havoc test_#t~nondet11; 2213#L184 assume !(0 != test_~tmp___0~0); 2211#L184-2 test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 2209#L194 assume 0 != test_~tmp___2~0; 2208#L200-2 assume { :begin_inline_timeShift } true; 2122#L233 assume !(0 != ~pumpRunning~0); 2117#L233-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 2118#L291 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 1993#L265-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1954#L131-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1955#L136-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 1969#L393-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 2088#L393-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 2060#L399-1 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 2061#L269-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2000#L257-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1991#L265-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1992#L291-1 assume { :end_inline_processEnvironment } true; 2015#L240-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret35, __utac_acc__Specification3_spec__1_#t~ret36, __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 2016#L91 __utac_acc__Specification3_spec__1_#t~ret35 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret35;havoc __utac_acc__Specification3_spec__1_#t~ret35; 2201#L448 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5; 2084#L454-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2085#L250 assume { :end_inline_timeShift } true; 1949#L164-3 [2018-11-18 14:08:47,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:08:47,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2018-11-18 14:08:47,133 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:08:47,134 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:08:47,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:47,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:08:47,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:08:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:08:47,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:08:47,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1953705718, now seen corresponding path program 1 times [2018-11-18 14:08:47,169 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:08:47,169 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:08:47,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:47,170 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:08:47,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:08:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:08:47,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:08:47,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1090279630, now seen corresponding path program 1 times [2018-11-18 14:08:47,179 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:08:47,179 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:08:47,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:47,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:08:47,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:08:47,254 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 14:08:47,254 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:08:47,254 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 14:08:47,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:08:47,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:08:47,386 INFO L87 Difference]: Start difference. First operand 291 states and 370 transitions. cyclomatic complexity: 82 Second operand 5 states. [2018-11-18 14:08:47,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:08:47,456 INFO L93 Difference]: Finished difference Result 1037 states and 1311 transitions. [2018-11-18 14:08:47,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:08:47,457 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1037 states and 1311 transitions. [2018-11-18 14:08:47,461 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 792 [2018-11-18 14:08:47,463 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1037 states to 1037 states and 1311 transitions. [2018-11-18 14:08:47,463 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1037 [2018-11-18 14:08:47,464 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1037 [2018-11-18 14:08:47,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1037 states and 1311 transitions. [2018-11-18 14:08:47,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:08:47,465 INFO L705 BuchiCegarLoop]: Abstraction has 1037 states and 1311 transitions. [2018-11-18 14:08:47,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states and 1311 transitions. [2018-11-18 14:08:47,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 575. [2018-11-18 14:08:47,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2018-11-18 14:08:47,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 721 transitions. [2018-11-18 14:08:47,478 INFO L728 BuchiCegarLoop]: Abstraction has 575 states and 721 transitions. [2018-11-18 14:08:47,478 INFO L608 BuchiCegarLoop]: Abstraction has 575 states and 721 transitions. [2018-11-18 14:08:47,478 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 14:08:47,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 575 states and 721 transitions. [2018-11-18 14:08:47,480 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 418 [2018-11-18 14:08:47,480 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:08:47,480 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:08:47,481 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:08:47,481 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, 1] [2018-11-18 14:08:47,481 INFO L794 eck$LassoCheckResult]: Stem: 3431#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~string18.base, #t~string18.offset := #Ultimate.alloc(13);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 79];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 110];#memory_int := #memory_int[#t~string20.base,2 + #t~string20.offset := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,3 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 44];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 80];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 117];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 109];#memory_int := #memory_int[#t~string24.base,4 + #t~string24.offset := 112];#memory_int := #memory_int[#t~string24.base,5 + #t~string24.offset := 58];#memory_int := #memory_int[#t~string24.base,6 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 79];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 110];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,3 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 41];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 32];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 10];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(30);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(9);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(21);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(30);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(9);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 3285#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6;assume { :begin_inline_select_helpers } true; 3286#L594 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3370#L587 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 3371#L602 main_#t~ret38 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~6 := main_#t~ret38;havoc main_#t~ret38; 3457#L558 assume 0 != main_~tmp~6;assume { :begin_inline_setup } true; 3346#L532 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, 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; 3347#L164-3 [2018-11-18 14:08:47,481 INFO L796 eck$LassoCheckResult]: Loop: 3347#L164-3 assume true; 3721#L164-1 assume !false; 3714#L165 assume test_~splverifierCounter~0 < 4; 3336#L166 test_~tmp~0 := test_#t~nondet10;havoc test_#t~nondet10; 3337#L174 assume !(0 != test_~tmp~0); 3838#L174-2 test_~tmp___0~0 := test_#t~nondet11;havoc test_#t~nondet11; 3835#L184 assume !(0 != test_~tmp___0~0); 3833#L184-2 test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 3831#L194 assume 0 != test_~tmp___2~0; 3830#L200-2 assume { :begin_inline_timeShift } true; 3774#L233 assume !(0 != ~pumpRunning~0); 3772#L233-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 3724#L291 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 3769#L265-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 3766#L131-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 3764#L136-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 3762#L393-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 3759#L393-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 3757#L399-1 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 3754#L269-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3755#L257-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3749#L265-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3747#L291-1 assume { :end_inline_processEnvironment } true; 3737#L240-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret35, __utac_acc__Specification3_spec__1_#t~ret36, __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 3736#L91 __utac_acc__Specification3_spec__1_#t~ret35 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret35;havoc __utac_acc__Specification3_spec__1_#t~ret35; 3735#L448 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~5);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 3734#L123 __utac_acc__Specification3_spec__1_#t~ret36 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3 := __utac_acc__Specification3_spec__1_#t~ret36;havoc __utac_acc__Specification3_spec__1_#t~ret36; 3731#L454 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3); 3730#L454-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3729#L250 assume { :end_inline_timeShift } true; 3347#L164-3 [2018-11-18 14:08:47,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:08:47,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2018-11-18 14:08:47,482 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:08:47,482 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:08:47,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:47,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:08:47,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:08:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:08:47,506 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:08:47,507 INFO L82 PathProgramCache]: Analyzing trace with hash -609232771, now seen corresponding path program 1 times [2018-11-18 14:08:47,507 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:08:47,507 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:08:47,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:47,508 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:08:47,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:08:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:08:47,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:08:47,516 INFO L82 PathProgramCache]: Analyzing trace with hash -212041919, now seen corresponding path program 1 times [2018-11-18 14:08:47,516 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:08:47,516 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:08:47,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:47,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:08:47,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:08:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:08:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:08:47,653 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2018-11-18 14:09:59,733 WARN L180 SmtUtils]: Spent 1.20 m on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 14:10:45,805 WARN L180 SmtUtils]: Spent 46.07 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 14:10:45,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 02:10:45 BoogieIcfgContainer [2018-11-18 14:10:45,865 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 14:10:45,866 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:10:45,866 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:10:45,866 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:10:45,866 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:08:46" (3/4) ... [2018-11-18 14:10:45,868 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 14:10:45,913 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1cd1dd73-cffe-485a-bc0e-e2fa6ffa9fc1/bin-2019/uautomizer/witness.graphml [2018-11-18 14:10:45,913 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:10:45,914 INFO L168 Benchmark]: Toolchain (without parser) took 120905.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 956.6 MB in the beginning and 847.1 MB in the end (delta: 109.4 MB). Peak memory consumption was 272.5 MB. Max. memory is 11.5 GB. [2018-11-18 14:10:45,914 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:10:45,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -154.3 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-11-18 14:10:45,915 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.14 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:10:45,915 INFO L168 Benchmark]: Boogie Preprocessor took 32.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:10:45,915 INFO L168 Benchmark]: RCFGBuilder took 584.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.4 MB). Peak memory consumption was 73.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:10:45,915 INFO L168 Benchmark]: BuchiAutomizer took 119833.19 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 38.3 MB). Free memory was 1.0 GB in the beginning and 854.6 MB in the end (delta: 177.5 MB). Peak memory consumption was 222.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:10:45,916 INFO L168 Benchmark]: Witness Printer took 47.47 ms. Allocated memory is still 1.2 GB. Free memory was 854.6 MB in the beginning and 847.1 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:10:45,917 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 357.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -154.3 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.14 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 584.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.4 MB). Peak memory consumption was 73.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 119833.19 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 38.3 MB). Free memory was 1.0 GB in the beginning and 854.6 MB in the end (delta: 177.5 MB). Peak memory consumption was 222.1 MB. Max. memory is 11.5 GB. * Witness Printer took 47.47 ms. Allocated memory is still 1.2 GB. Free memory was 854.6 MB in the beginning and 847.1 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 575 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 119.7s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 119.0s. Construction of modules took 0.3s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 872 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 575 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1052 SDtfs, 2194 SDslu, 2594 SDs, 0 SdLazy, 177 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 164]: 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, "libacc.c"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ad704fd=0, "Env(Water:%i"=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e8fb1ce=0, "__utac__get_this_arg"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@702398de=0, "libacc.c"=37, "OK"=12, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_arg"=0, "__utac__get_this_arg"=33, retValue_acc=0, "__utac__get_this_argtype"=40, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f51848a=0, methaneLevelCritical=0, retValue_acc=1, tmp___0=0, "__utac__get_this_argtype"=0, "libacc.c"=0, "libacc.c"=8, "i > 0 && i <= this->argsCount"=0, tmp___1=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d17f9de=0, "On"=20, "Off"=29, cleanupTimeShifts=4, tmp=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6106e653=0, tmp=0, tmp___0=1, NULL=0, systemActive=1, waterLevel=1, "__utac__get_this_argtype"=38, \result=1, "\n"=0, ") "=0, "i > 0 && i <= this->argsCount"=26, \result=0, tmp___0=0, "__utac__get_this_arg"=24, "i > 0 && i <= this->argsCount"=0, \result=1, retValue_acc=1, "Pump(System:"=22, head=0, pumpRunning=0, \result=0, retValue_acc=1, "i > 0 && i <= this->argsCount"=0, "Pump(System:"=0, tmp=1, \result=1, "i > 0 && i <= this->argsCount"=36, "i > 0 && i <= this->argsCount"=34, "Off"=18, "__utac__get_this_argtype"=0, "libacc.c"=0, tmp=1, "CRIT"=15, tmp___2=171, ") "=28, "On"=31, splverifierCounter=0, "Env(Water:%i"=0, ",Meth:"=0, "libacc.c"=0, ")"=0, "OK"=0, "CRIT"=0, \result=0, ")"=14, "i > 0 && i <= this->argsCount"=39, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75cd71bf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67615d5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@bdb9f07=0, "libacc.c"=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77ae7199=171, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32779987=0, tmp___1=0, head=0, "On"=0, "Off"=0, ",Pump:"=19, ",Pump:"=0, "On"=0, "\n"=27, ",Meth:"=16, "Off"=0, "libacc.c"=35} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 164]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L100] FCALL "Env(Water:%i" [L101] FCALL ",Meth:" [L105] FCALL "CRIT" [L109] FCALL "OK" [L113] FCALL ")" [L353] FCALL "Pump(System:" [L357] FCALL "On" [L361] FCALL "Off" [L365] FCALL ",Pump:" [L369] FCALL "On" [L373] FCALL "Off" [L377] FCALL ") " [L379] FCALL "\n" [L904] FCALL "i > 0 && i <= this->argsCount" [L904] FCALL "libacc.c" [L905] FCALL "__utac__get_this_arg" [L911] FCALL "i > 0 && i <= this->argsCount" [L911] FCALL "libacc.c" [L912] FCALL "__utac__get_this_arg" [L950] FCALL "i > 0 && i <= this->argsCount" [L950] FCALL "libacc.c" [L951] FCALL "__utac__get_this_argtype" [L957] FCALL "i > 0 && i <= this->argsCount" [L957] FCALL "libacc.c" [L958] FCALL "__utac__get_this_argtype" [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L225] int pumpRunning = 0; [L226] int systemActive = 1; [L473] int cleanupTimeShifts = 4; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L549] int retValue_acc ; [L550] int tmp ; [L554] FCALL select_helpers() [L555] FCALL select_features() [L556] CALL, EXPR valid_product() [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] RET return (retValue_acc); [L556] EXPR valid_product() [L556] tmp = valid_product() [L558] COND TRUE \read(tmp) [L560] FCALL setup() [L561] CALL runTest() [L540] CALL test() [L155] int splverifierCounter ; [L156] int tmp ; [L157] int tmp___0 ; [L158] int tmp___1 ; [L159] int tmp___2 ; [L162] splverifierCounter = 0 Loop: [L164] COND TRUE 1 [L166] COND TRUE splverifierCounter < 4 [L172] tmp = __VERIFIER_nondet_int() [L174] COND FALSE !(\read(tmp)) [L182] tmp___0 = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp___0)) [L192] tmp___2 = __VERIFIER_nondet_int() [L194] COND TRUE \read(tmp___2) [L209] CALL timeShift() [L233] COND FALSE !(\read(pumpRunning)) [L240] COND TRUE \read(systemActive) [L242] CALL processEnvironment() [L288] int tmp ; [L291] COND FALSE !(\read(pumpRunning)) [L306] CALL processEnvironment__wrappee__highWaterSensor() [L262] int tmp ; [L265] COND TRUE ! pumpRunning [L267] CALL, EXPR isHighWaterLevel() [L385] int retValue_acc ; [L386] int tmp ; [L387] int tmp___0 ; [L391] CALL, EXPR isHighWaterSensorDry() [L128] int retValue_acc ; [L131] COND TRUE waterLevel < 2 [L132] retValue_acc = 1 [L133] RET return (retValue_acc); [L391] EXPR isHighWaterSensorDry() [L391] tmp = isHighWaterSensorDry() [L393] COND TRUE \read(tmp) [L394] tmp___0 = 0 [L398] retValue_acc = tmp___0 [L399] RET return (retValue_acc); [L267] EXPR isHighWaterLevel() [L267] tmp = isHighWaterLevel() [L269] COND FALSE !(\read(tmp)) [L275] RET, FCALL processEnvironment__wrappee__base() [L306] RET processEnvironment__wrappee__highWaterSensor() [L242] processEnvironment() [L248] CALL __utac_acc__Specification3_spec__1() [L440] int tmp ; [L441] int tmp___0 ; [L442] int tmp___1 ; [L446] CALL, EXPR isMethaneLevelCritical() [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] RET return (retValue_acc); [L446] EXPR isMethaneLevelCritical() [L446] tmp = isMethaneLevelCritical() [L448] COND FALSE !(\read(tmp)) [L452] CALL, EXPR getWaterLevel() [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] RET return (retValue_acc); [L452] EXPR getWaterLevel() [L452] tmp___0 = getWaterLevel() [L454] COND FALSE, RET !(tmp___0 == 2) [L248] RET __utac_acc__Specification3_spec__1() [L209] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...