./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product51_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e379e0db-6279-4b36-9e79-cf72d6806073/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e379e0db-6279-4b36-9e79-cf72d6806073/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e379e0db-6279-4b36-9e79-cf72d6806073/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e379e0db-6279-4b36-9e79-cf72d6806073/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product51_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e379e0db-6279-4b36-9e79-cf72d6806073/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e379e0db-6279-4b36-9e79-cf72d6806073/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 0140910feaef212f3eb8993aa9e49d2064d898fa ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:20:27,000 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:20:27,001 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:20:27,008 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:20:27,008 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:20:27,009 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:20:27,010 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:20:27,011 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:20:27,012 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:20:27,012 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:20:27,013 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:20:27,013 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:20:27,014 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:20:27,014 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:20:27,015 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:20:27,015 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:20:27,016 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:20:27,017 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:20:27,018 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:20:27,019 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:20:27,020 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:20:27,021 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:20:27,022 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:20:27,022 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:20:27,023 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:20:27,023 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:20:27,024 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:20:27,024 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:20:27,025 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:20:27,026 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:20:27,026 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:20:27,027 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:20:27,027 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:20:27,027 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:20:27,027 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:20:27,028 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:20:27,028 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e379e0db-6279-4b36-9e79-cf72d6806073/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 11:20:27,035 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:20:27,035 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:20:27,036 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:20:27,036 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:20:27,036 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:20:27,036 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 11:20:27,037 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 11:20:27,037 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 11:20:27,037 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 11:20:27,037 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 11:20:27,037 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 11:20:27,037 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:20:27,037 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:20:27,037 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 11:20:27,038 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:20:27,038 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:20:27,038 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:20:27,038 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 11:20:27,038 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 11:20:27,038 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 11:20:27,040 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:20:27,040 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:20:27,040 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 11:20:27,040 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:20:27,040 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 11:20:27,041 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:20:27,041 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:20:27,041 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 11:20:27,041 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:20:27,041 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:20:27,041 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 11:20:27,042 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 11:20:27,042 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_e379e0db-6279-4b36-9e79-cf72d6806073/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 -> 0140910feaef212f3eb8993aa9e49d2064d898fa [2018-11-28 11:20:27,066 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:20:27,075 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:20:27,077 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:20:27,078 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:20:27,079 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:20:27,079 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e379e0db-6279-4b36-9e79-cf72d6806073/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product51_true-unreach-call_false-termination.cil.c [2018-11-28 11:20:27,119 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e379e0db-6279-4b36-9e79-cf72d6806073/bin-2019/uautomizer/data/4909e05e1/5d94cf9d89884ed998cd661d19fde611/FLAGf43b4dcff [2018-11-28 11:20:27,563 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:20:27,564 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e379e0db-6279-4b36-9e79-cf72d6806073/sv-benchmarks/c/product-lines/minepump_spec5_product51_true-unreach-call_false-termination.cil.c [2018-11-28 11:20:27,573 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e379e0db-6279-4b36-9e79-cf72d6806073/bin-2019/uautomizer/data/4909e05e1/5d94cf9d89884ed998cd661d19fde611/FLAGf43b4dcff [2018-11-28 11:20:27,583 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e379e0db-6279-4b36-9e79-cf72d6806073/bin-2019/uautomizer/data/4909e05e1/5d94cf9d89884ed998cd661d19fde611 [2018-11-28 11:20:27,585 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:20:27,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:20:27,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:20:27,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:20:27,589 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:20:27,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:20:27" (1/1) ... [2018-11-28 11:20:27,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d835ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:20:27, skipping insertion in model container [2018-11-28 11:20:27,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:20:27" (1/1) ... [2018-11-28 11:20:27,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:20:27,624 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:20:27,814 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:20:27,878 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:20:27,935 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:20:27,953 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:20:27,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:20:27 WrapperNode [2018-11-28 11:20:27,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:20:27,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:20:27,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:20:27,954 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:20:27,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:20:27" (1/1) ... [2018-11-28 11:20:27,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:20:27" (1/1) ... [2018-11-28 11:20:28,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:20:28,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:20:28,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:20:28,003 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:20:28,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:20:27" (1/1) ... [2018-11-28 11:20:28,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:20:27" (1/1) ... [2018-11-28 11:20:28,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:20:27" (1/1) ... [2018-11-28 11:20:28,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:20:27" (1/1) ... [2018-11-28 11:20:28,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:20:27" (1/1) ... [2018-11-28 11:20:28,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:20:27" (1/1) ... [2018-11-28 11:20:28,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:20:27" (1/1) ... [2018-11-28 11:20:28,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:20:28,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:20:28,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:20:28,037 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:20:28,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:20:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e379e0db-6279-4b36-9e79-cf72d6806073/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:20:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 11:20:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 11:20:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:20:28,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:20:28,611 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:20:28,611 INFO L280 CfgBuilder]: Removed 174 assue(true) statements. [2018-11-28 11:20:28,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:20:28 BoogieIcfgContainer [2018-11-28 11:20:28,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:20:28,612 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 11:20:28,612 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 11:20:28,614 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 11:20:28,615 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:20:28,615 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:20:27" (1/3) ... [2018-11-28 11:20:28,616 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@494b553a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:20:28, skipping insertion in model container [2018-11-28 11:20:28,616 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:20:28,616 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:20:27" (2/3) ... [2018-11-28 11:20:28,616 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@494b553a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:20:28, skipping insertion in model container [2018-11-28 11:20:28,616 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:20:28,616 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:20:28" (3/3) ... [2018-11-28 11:20:28,618 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product51_true-unreach-call_false-termination.cil.c [2018-11-28 11:20:28,651 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:20:28,651 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 11:20:28,651 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 11:20:28,651 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 11:20:28,651 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:20:28,651 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:20:28,651 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 11:20:28,652 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:20:28,652 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 11:20:28,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states. [2018-11-28 11:20:28,685 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2018-11-28 11:20:28,685 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:20:28,685 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:20:28,690 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:20:28,690 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:20:28,691 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 11:20:28,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states. [2018-11-28 11:20:28,696 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2018-11-28 11:20:28,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:20:28,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:20:28,697 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:20:28,697 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:20:28,701 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(21);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(30);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(9);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(21);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(25);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string63.base, #t~string63.offset := #Ultimate.alloc(13);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~switchedOnBeforeTS~0 := 0; 8#L-1true havoc main_#res;havoc main_#t~ret21, main_~retValue_acc~4, main_~tmp~4;havoc main_~retValue_acc~4;havoc main_~tmp~4; 17#L461true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 34#L469true main_#t~ret21 := valid_product_#res;main_~tmp~4 := main_#t~ret21;havoc main_#t~ret21; 78#L358true assume 0 != main_~tmp~4; 10#L329true ~switchedOnBeforeTS~0 := 0; 36#L959true havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 66#L980-1true [2018-11-28 11:20:28,701 INFO L796 eck$LassoCheckResult]: Loop: 66#L980-1true assume !false; 63#L383true assume test_~splverifierCounter~0 < 4; 23#L384true test_~tmp~5 := test_#t~nondet22;havoc test_#t~nondet22; 29#L392true assume !(0 != test_~tmp~5); 31#L392-1true test_~tmp___0~2 := test_#t~nondet23;havoc test_#t~nondet23; 70#L402true assume !(0 != test_~tmp___0~2); 76#L402-1true test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 122#L412true assume 0 != test_~tmp___2~0; 111#L418-1true havoc __utac_acc__Specification5_spec__2_#t~ret72;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 54#L174true __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 65#L969true assume !(0 != ~pumpRunning~0); 113#L63true assume !(0 != ~systemActive~0); 18#L70true havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 114#L916true __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 64#L980true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 66#L980-1true [2018-11-28 11:20:28,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:20:28,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2018-11-28 11:20:28,711 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:20:28,712 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:20:28,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:28,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:20:28,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:20:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:20:28,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:20:28,860 INFO L82 PathProgramCache]: Analyzing trace with hash -240044843, now seen corresponding path program 1 times [2018-11-28 11:20:28,860 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:20:28,860 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:20:28,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:28,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:20:28,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:20:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:20:28,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:20:28,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1693980367, now seen corresponding path program 1 times [2018-11-28 11:20:28,874 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:20:28,874 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:20:28,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:28,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:20:28,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:20:29,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:20:29,007 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:20:29,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 11:20:29,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 11:20:29,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-28 11:20:29,097 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 6 states. [2018-11-28 11:20:29,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:20:29,226 INFO L93 Difference]: Finished difference Result 301 states and 430 transitions. [2018-11-28 11:20:29,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 11:20:29,227 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 301 states and 430 transitions. [2018-11-28 11:20:29,233 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 195 [2018-11-28 11:20:29,239 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 301 states to 280 states and 409 transitions. [2018-11-28 11:20:29,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 280 [2018-11-28 11:20:29,241 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 280 [2018-11-28 11:20:29,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 280 states and 409 transitions. [2018-11-28 11:20:29,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 11:20:29,243 INFO L705 BuchiCegarLoop]: Abstraction has 280 states and 409 transitions. [2018-11-28 11:20:29,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states and 409 transitions. [2018-11-28 11:20:29,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 167. [2018-11-28 11:20:29,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-11-28 11:20:29,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 242 transitions. [2018-11-28 11:20:29,273 INFO L728 BuchiCegarLoop]: Abstraction has 167 states and 242 transitions. [2018-11-28 11:20:29,273 INFO L608 BuchiCegarLoop]: Abstraction has 167 states and 242 transitions. [2018-11-28 11:20:29,273 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 11:20:29,273 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 242 transitions. [2018-11-28 11:20:29,275 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 116 [2018-11-28 11:20:29,275 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:20:29,275 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:20:29,276 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:20:29,276 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:20:29,276 INFO L794 eck$LassoCheckResult]: Stem: 556#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(21);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(30);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(9);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(21);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(25);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string63.base, #t~string63.offset := #Ultimate.alloc(13);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~switchedOnBeforeTS~0 := 0; 457#L-1 havoc main_#res;havoc main_#t~ret21, main_~retValue_acc~4, main_~tmp~4;havoc main_~retValue_acc~4;havoc main_~tmp~4; 458#L461 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 475#L469 main_#t~ret21 := valid_product_#res;main_~tmp~4 := main_#t~ret21;havoc main_#t~ret21; 498#L358 assume 0 != main_~tmp~4; 462#L329 ~switchedOnBeforeTS~0 := 0; 463#L959 havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 472#L980-1 [2018-11-28 11:20:29,276 INFO L796 eck$LassoCheckResult]: Loop: 472#L980-1 assume !false; 534#L383 assume test_~splverifierCounter~0 < 4; 485#L384 test_~tmp~5 := test_#t~nondet22;havoc test_#t~nondet22; 486#L392 assume !(0 != test_~tmp~5); 493#L392-1 test_~tmp___0~2 := test_#t~nondet23;havoc test_#t~nondet23; 494#L402 assume !(0 != test_~tmp___0~2); 496#L402-1 test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 546#L412 assume 0 != test_~tmp___2~0; 562#L418-1 havoc __utac_acc__Specification5_spec__2_#t~ret72;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 524#L174 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 525#L969 assume !(0 != ~pumpRunning~0); 537#L63 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 558#L121 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 454#L95-1 assume !(0 == ~pumpRunning~0); 455#L70 havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 476#L916 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 535#L980 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 472#L980-1 [2018-11-28 11:20:29,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:20:29,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2018-11-28 11:20:29,281 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:20:29,281 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:20:29,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:29,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:20:29,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:20:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:20:29,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:20:29,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1395551213, now seen corresponding path program 1 times [2018-11-28 11:20:29,324 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:20:29,324 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:20:29,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:29,325 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:20:29,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:20:29,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:20:29,347 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:20:29,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:20:29,347 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 11:20:29,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:20:29,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:20:29,348 INFO L87 Difference]: Start difference. First operand 167 states and 242 transitions. cyclomatic complexity: 78 Second operand 3 states. [2018-11-28 11:20:29,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:20:29,433 INFO L93 Difference]: Finished difference Result 214 states and 293 transitions. [2018-11-28 11:20:29,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:20:29,435 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 214 states and 293 transitions. [2018-11-28 11:20:29,437 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 152 [2018-11-28 11:20:29,438 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 214 states to 214 states and 293 transitions. [2018-11-28 11:20:29,438 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 214 [2018-11-28 11:20:29,438 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 214 [2018-11-28 11:20:29,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 214 states and 293 transitions. [2018-11-28 11:20:29,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 11:20:29,441 INFO L705 BuchiCegarLoop]: Abstraction has 214 states and 293 transitions. [2018-11-28 11:20:29,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states and 293 transitions. [2018-11-28 11:20:29,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2018-11-28 11:20:29,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2018-11-28 11:20:29,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 293 transitions. [2018-11-28 11:20:29,449 INFO L728 BuchiCegarLoop]: Abstraction has 214 states and 293 transitions. [2018-11-28 11:20:29,449 INFO L608 BuchiCegarLoop]: Abstraction has 214 states and 293 transitions. [2018-11-28 11:20:29,449 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 11:20:29,449 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 214 states and 293 transitions. [2018-11-28 11:20:29,451 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 152 [2018-11-28 11:20:29,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:20:29,452 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:20:29,452 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:20:29,452 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:20:29,453 INFO L794 eck$LassoCheckResult]: Stem: 953#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(21);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(30);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(9);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(21);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(25);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string63.base, #t~string63.offset := #Ultimate.alloc(13);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~switchedOnBeforeTS~0 := 0; 843#L-1 havoc main_#res;havoc main_#t~ret21, main_~retValue_acc~4, main_~tmp~4;havoc main_~retValue_acc~4;havoc main_~tmp~4; 844#L461 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 863#L469 main_#t~ret21 := valid_product_#res;main_~tmp~4 := main_#t~ret21;havoc main_#t~ret21; 891#L358 assume 0 != main_~tmp~4; 848#L329 ~switchedOnBeforeTS~0 := 0; 849#L959 havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 894#L980-1 [2018-11-28 11:20:29,453 INFO L796 eck$LassoCheckResult]: Loop: 894#L980-1 assume !false; 1021#L383 assume test_~splverifierCounter~0 < 4; 1022#L384 test_~tmp~5 := test_#t~nondet22;havoc test_#t~nondet22; 1039#L392 assume !(0 != test_~tmp~5); 1037#L392-1 test_~tmp___0~2 := test_#t~nondet23;havoc test_#t~nondet23; 1036#L402 assume !(0 != test_~tmp___0~2); 1034#L402-1 test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 966#L412 assume 0 != test_~tmp___2~0; 960#L418-1 havoc __utac_acc__Specification5_spec__2_#t~ret72;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 920#L174 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 921#L969 assume !(0 != ~pumpRunning~0); 932#L63 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 955#L121 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 841#L95-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 842#L924-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 878#L929-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 879#L223-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 924#L223-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 922#L229-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 923#L99-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 874#L70 havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 1027#L916 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 1025#L980 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 894#L980-1 [2018-11-28 11:20:29,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:20:29,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2018-11-28 11:20:29,453 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:20:29,454 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:20:29,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:29,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:20:29,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:20:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:20:29,494 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:20:29,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1667768609, now seen corresponding path program 1 times [2018-11-28 11:20:29,495 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:20:29,495 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:20:29,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:29,496 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:20:29,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:20:29,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:20:29,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:20:29,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 11:20:29,535 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 11:20:29,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 11:20:29,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:20:29,536 INFO L87 Difference]: Start difference. First operand 214 states and 293 transitions. cyclomatic complexity: 82 Second operand 5 states. [2018-11-28 11:20:29,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:20:29,649 INFO L93 Difference]: Finished difference Result 576 states and 773 transitions. [2018-11-28 11:20:29,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 11:20:29,649 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 576 states and 773 transitions. [2018-11-28 11:20:29,652 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 385 [2018-11-28 11:20:29,654 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 576 states to 576 states and 773 transitions. [2018-11-28 11:20:29,654 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 576 [2018-11-28 11:20:29,655 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 576 [2018-11-28 11:20:29,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 576 states and 773 transitions. [2018-11-28 11:20:29,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 11:20:29,657 INFO L705 BuchiCegarLoop]: Abstraction has 576 states and 773 transitions. [2018-11-28 11:20:29,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states and 773 transitions. [2018-11-28 11:20:29,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 421. [2018-11-28 11:20:29,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2018-11-28 11:20:29,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 561 transitions. [2018-11-28 11:20:29,671 INFO L728 BuchiCegarLoop]: Abstraction has 421 states and 561 transitions. [2018-11-28 11:20:29,671 INFO L608 BuchiCegarLoop]: Abstraction has 421 states and 561 transitions. [2018-11-28 11:20:29,671 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 11:20:29,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 421 states and 561 transitions. [2018-11-28 11:20:29,675 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 304 [2018-11-28 11:20:29,675 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:20:29,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:20:29,676 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:20:29,676 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] [2018-11-28 11:20:29,676 INFO L794 eck$LassoCheckResult]: Stem: 1760#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(21);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(30);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(9);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(21);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(25);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string63.base, #t~string63.offset := #Ultimate.alloc(13);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~switchedOnBeforeTS~0 := 0; 1649#L-1 havoc main_#res;havoc main_#t~ret21, main_~retValue_acc~4, main_~tmp~4;havoc main_~retValue_acc~4;havoc main_~tmp~4; 1650#L461 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 1669#L469 main_#t~ret21 := valid_product_#res;main_~tmp~4 := main_#t~ret21;havoc main_#t~ret21; 1697#L358 assume 0 != main_~tmp~4; 1654#L329 ~switchedOnBeforeTS~0 := 0; 1655#L959 havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1665#L980-1 [2018-11-28 11:20:29,676 INFO L796 eck$LassoCheckResult]: Loop: 1665#L980-1 assume !false; 1735#L383 assume test_~splverifierCounter~0 < 4; 1736#L384 test_~tmp~5 := test_#t~nondet22;havoc test_#t~nondet22; 1945#L392 assume !(0 != test_~tmp~5); 1946#L392-1 test_~tmp___0~2 := test_#t~nondet23;havoc test_#t~nondet23; 2040#L402 assume !(0 != test_~tmp___0~2); 2038#L402-1 test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 2027#L412 assume 0 != test_~tmp___2~0; 2025#L418-1 havoc __utac_acc__Specification5_spec__2_#t~ret72;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2041#L174 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 1738#L969 assume !(0 != ~pumpRunning~0); 1739#L63 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1763#L121 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1647#L95-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1648#L924-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1683#L929-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 1684#L223-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1729#L223-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1727#L229-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 1728#L99-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1670#L70 havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 1671#L916 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 1737#L980 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1722#L174-1 __utac_acc__Specification5_spec__3_#t~ret74 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret74;havoc __utac_acc__Specification5_spec__3_#t~ret74; 1664#L984 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 1665#L980-1 [2018-11-28 11:20:29,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:20:29,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2018-11-28 11:20:29,677 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:20:29,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:20:29,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:29,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:20:29,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:20:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:20:29,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:20:29,709 INFO L82 PathProgramCache]: Analyzing trace with hash -702843718, now seen corresponding path program 1 times [2018-11-28 11:20:29,710 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:20:29,710 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:20:29,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:29,714 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:20:29,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:20:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:20:29,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:20:29,724 INFO L82 PathProgramCache]: Analyzing trace with hash -766269900, now seen corresponding path program 1 times [2018-11-28 11:20:29,724 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:20:29,724 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:20:29,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:29,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:20:29,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:20:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:20:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:20:35,160 WARN L180 SmtUtils]: Spent 5.24 s on a formula simplification. DAG size of input: 429 DAG size of output: 427 [2018-11-28 11:20:37,648 WARN L180 SmtUtils]: Spent 2.49 s on a formula simplification that was a NOOP. DAG size: 425 [2018-11-28 11:20:37,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:20:37 BoogieIcfgContainer [2018-11-28 11:20:37,687 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 11:20:37,687 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:20:37,687 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:20:37,687 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:20:37,688 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:20:28" (3/4) ... [2018-11-28 11:20:37,690 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 11:20:37,732 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e379e0db-6279-4b36-9e79-cf72d6806073/bin-2019/uautomizer/witness.graphml [2018-11-28 11:20:37,732 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:20:37,733 INFO L168 Benchmark]: Toolchain (without parser) took 10147.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 188.7 MB). Free memory was 950.6 MB in the beginning and 1.2 GB in the end (delta: -218.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:20:37,733 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:20:37,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -164.0 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-11-28 11:20:37,734 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.36 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:20:37,734 INFO L168 Benchmark]: Boogie Preprocessor took 33.67 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:20:37,735 INFO L168 Benchmark]: RCFGBuilder took 574.53 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: 60.6 MB). Peak memory consumption was 60.6 MB. Max. memory is 11.5 GB. [2018-11-28 11:20:37,735 INFO L168 Benchmark]: BuchiAutomizer took 9075.10 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -120.0 MB). Peak memory consumption was 248.2 MB. Max. memory is 11.5 GB. [2018-11-28 11:20:37,735 INFO L168 Benchmark]: Witness Printer took 45.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:20:37,737 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 366.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -164.0 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.36 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.67 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 574.53 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: 60.6 MB). Peak memory consumption was 60.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 9075.10 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -120.0 MB). Peak memory consumption was 248.2 MB. Max. memory is 11.5 GB. * Witness Printer took 45.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 421 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 8.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 268 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 421 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 588 SDtfs, 1366 SDslu, 1433 SDs, 0 SdLazy, 177 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 382]: 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 {retValue_acc=1, NULL=0, NULL=0, NULL=18, NULL=31, NULL=0, NULL=0, NULL=11, retValue_acc=0, NULL=38, NULL=0, NULL=24, NULL=36, methaneLevelCritical=0, NULL=19, tmp=1, tmp___0=0, NULL=0, NULL=0, tmp=0, retValue_acc=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6137c99d=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=34, NULL=8, NULL=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6955acd6=0, \result=0, NULL=0, systemActive=1, waterLevel=1, NULL=26, \result=1, NULL=0, NULL=29, NULL=0, NULL=0, NULL=17, \result=0, NULL=0, NULL=12, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=22, \result=1, NULL=14, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57a039aa=0, NULL=28, NULL=23, \result=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e0a9995=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@619de958=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46202063=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61bdd422=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43b21697=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@703f294b=0, \result=1, NULL=37, retValue_acc=1, NULL=39, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41463eb0=0, NULL=0, tmp=1, retValue_acc=1, tmp___2=56, tmp___0=0, splverifierCounter=0, NULL=0, NULL=20, NULL=35, tmp=0, head=0, retValue_acc=0, NULL=15, NULL=27, NULL=0, NULL=33, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52933528=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L268] int cleanupTimeShifts = 4; [L643] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; [L953] int switchedOnBeforeTS ; [L349] int retValue_acc ; [L350] int tmp ; [L465] int retValue_acc ; [L468] retValue_acc = 1 [L469] return (retValue_acc); [L356] tmp = valid_product() [L358] COND TRUE \read(tmp) [L958] switchedOnBeforeTS = 0 [L373] int splverifierCounter ; [L374] int tmp ; [L375] int tmp___0 ; [L376] int tmp___1 ; [L377] int tmp___2 ; [L380] splverifierCounter = 0 Loop: [L382] COND TRUE 1 [L384] COND TRUE splverifierCounter < 4 [L390] tmp = __VERIFIER_nondet_int() [L392] COND FALSE !(\read(tmp)) [L400] tmp___0 = __VERIFIER_nondet_int() [L402] COND FALSE !(\read(tmp___0)) [L410] tmp___2 = __VERIFIER_nondet_int() [L412] COND TRUE \read(tmp___2) [L170] int retValue_acc ; [L173] retValue_acc = pumpRunning [L174] return (retValue_acc); [L967] switchedOnBeforeTS = isPumpRunning() [L63] COND FALSE !(\read(pumpRunning)) [L70] COND TRUE \read(systemActive) [L118] int tmp ; [L121] COND FALSE !(\read(pumpRunning)) [L92] int tmp ; [L95] COND TRUE ! pumpRunning [L215] int retValue_acc ; [L216] int tmp ; [L217] int tmp___0 ; [L921] int retValue_acc ; [L924] COND TRUE waterLevel < 2 [L925] retValue_acc = 1 [L926] return (retValue_acc); [L221] tmp = isHighWaterSensorDry() [L223] COND TRUE \read(tmp) [L224] tmp___0 = 0 [L228] retValue_acc = tmp___0 [L229] return (retValue_acc); [L97] tmp = isHighWaterLevel() [L99] COND FALSE !(\read(tmp)) [L973] int tmp ; [L974] int tmp___0 ; [L912] int retValue_acc ; [L915] retValue_acc = waterLevel [L916] return (retValue_acc); [L978] tmp = getWaterLevel() [L980] COND TRUE tmp != 2 [L170] int retValue_acc ; [L173] retValue_acc = pumpRunning [L174] return (retValue_acc); [L982] tmp___0 = isPumpRunning() [L984] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...