./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product44_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_5ac23013-e5de-40da-8f4e-b5514df42237/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5ac23013-e5de-40da-8f4e-b5514df42237/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5ac23013-e5de-40da-8f4e-b5514df42237/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5ac23013-e5de-40da-8f4e-b5514df42237/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product44_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5ac23013-e5de-40da-8f4e-b5514df42237/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5ac23013-e5de-40da-8f4e-b5514df42237/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 35186e76d3512165346b803182d73298e94993df ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:51:08,075 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:51:08,076 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:51:08,083 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:51:08,083 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:51:08,084 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:51:08,084 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:51:08,086 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:51:08,087 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:51:08,087 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:51:08,088 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:51:08,088 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:51:08,089 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:51:08,089 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:51:08,090 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:51:08,090 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:51:08,090 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:51:08,091 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:51:08,093 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:51:08,093 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:51:08,094 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:51:08,094 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:51:08,095 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:51:08,095 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:51:08,096 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:51:08,096 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:51:08,096 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:51:08,097 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:51:08,098 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:51:08,098 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:51:08,098 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:51:08,099 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:51:08,099 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:51:08,099 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:51:08,100 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:51:08,100 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:51:08,101 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5ac23013-e5de-40da-8f4e-b5514df42237/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 11:51:08,112 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:51:08,112 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:51:08,113 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:51:08,113 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:51:08,113 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:51:08,113 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 11:51:08,113 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 11:51:08,113 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 11:51:08,113 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 11:51:08,114 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 11:51:08,114 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 11:51:08,114 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:51:08,114 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:51:08,114 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 11:51:08,114 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:51:08,114 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:51:08,114 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:51:08,115 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 11:51:08,115 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 11:51:08,115 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 11:51:08,115 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:51:08,115 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:51:08,115 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 11:51:08,115 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:51:08,116 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 11:51:08,116 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:51:08,116 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:51:08,116 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 11:51:08,116 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:51:08,116 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 11:51:08,116 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 11:51:08,117 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 11:51:08,117 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_5ac23013-e5de-40da-8f4e-b5514df42237/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 -> 35186e76d3512165346b803182d73298e94993df [2018-11-18 11:51:08,143 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:51:08,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:51:08,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:51:08,155 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:51:08,156 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:51:08,156 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5ac23013-e5de-40da-8f4e-b5514df42237/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product44_false-unreach-call_false-termination.cil.c [2018-11-18 11:51:08,201 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5ac23013-e5de-40da-8f4e-b5514df42237/bin-2019/uautomizer/data/89122b9e1/67630ddab8464f528165fdcab4a29e47/FLAG8cc977bac [2018-11-18 11:51:08,528 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:51:08,529 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5ac23013-e5de-40da-8f4e-b5514df42237/sv-benchmarks/c/product-lines/minepump_spec3_product44_false-unreach-call_false-termination.cil.c [2018-11-18 11:51:08,536 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5ac23013-e5de-40da-8f4e-b5514df42237/bin-2019/uautomizer/data/89122b9e1/67630ddab8464f528165fdcab4a29e47/FLAG8cc977bac [2018-11-18 11:51:08,547 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5ac23013-e5de-40da-8f4e-b5514df42237/bin-2019/uautomizer/data/89122b9e1/67630ddab8464f528165fdcab4a29e47 [2018-11-18 11:51:08,549 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:51:08,550 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:51:08,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:51:08,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:51:08,554 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:51:08,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:51:08" (1/1) ... [2018-11-18 11:51:08,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:08, skipping insertion in model container [2018-11-18 11:51:08,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:51:08" (1/1) ... [2018-11-18 11:51:08,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:51:08,600 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:51:08,819 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:51:08,827 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:51:08,926 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:51:08,942 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:51:08,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:08 WrapperNode [2018-11-18 11:51:08,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:51:08,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:51:08,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:51:08,944 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:51:08,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:08" (1/1) ... [2018-11-18 11:51:08,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:08" (1/1) ... [2018-11-18 11:51:08,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:51:08,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:51:08,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:51:08,994 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:51:09,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:08" (1/1) ... [2018-11-18 11:51:09,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:08" (1/1) ... [2018-11-18 11:51:09,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:08" (1/1) ... [2018-11-18 11:51:09,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:08" (1/1) ... [2018-11-18 11:51:09,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:08" (1/1) ... [2018-11-18 11:51:09,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:08" (1/1) ... [2018-11-18 11:51:09,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:08" (1/1) ... [2018-11-18 11:51:09,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:51:09,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:51:09,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:51:09,023 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:51:09,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5ac23013-e5de-40da-8f4e-b5514df42237/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 11:51:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:51:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:51:09,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:51:09,581 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:51:09,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:51:09 BoogieIcfgContainer [2018-11-18 11:51:09,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:51:09,582 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 11:51:09,582 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 11:51:09,584 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 11:51:09,584 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:51:09,585 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 11:51:08" (1/3) ... [2018-11-18 11:51:09,585 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3977d4fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:51:09, skipping insertion in model container [2018-11-18 11:51:09,585 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:51:09,586 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:08" (2/3) ... [2018-11-18 11:51:09,586 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3977d4fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:51:09, skipping insertion in model container [2018-11-18 11:51:09,586 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:51:09,586 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:51:09" (3/3) ... [2018-11-18 11:51:09,588 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product44_false-unreach-call_false-termination.cil.c [2018-11-18 11:51:09,622 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:51:09,623 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 11:51:09,623 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 11:51:09,623 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 11:51:09,623 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:51:09,623 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:51:09,623 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 11:51:09,623 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:51:09,623 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 11:51:09,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states. [2018-11-18 11:51:09,654 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2018-11-18 11:51:09,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:51:09,654 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:51:09,659 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:09,659 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:09,659 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 11:51:09,659 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states. [2018-11-18 11:51:09,663 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2018-11-18 11:51:09,663 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:51:09,663 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:51:09,663 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:09,663 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:09,667 INFO L794 eck$LassoCheckResult]: Stem: 102#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 44];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 77];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 101];#memory_int := #memory_int[#t~string7.base,3 + #t~string7.offset := 116];#memory_int := #memory_int[#t~string7.base,4 + #t~string7.offset := 104];#memory_int := #memory_int[#t~string7.base,5 + #t~string7.offset := 58];#memory_int := #memory_int[#t~string7.base,6 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 67];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 82];#memory_int := #memory_int[#t~string9.base,2 + #t~string9.offset := 73];#memory_int := #memory_int[#t~string9.base,3 + #t~string9.offset := 84];#memory_int := #memory_int[#t~string9.base,4 + #t~string9.offset := 0];call #t~string11.base, #t~string11.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string11.base,#t~string11.offset := 79];#memory_int := #memory_int[#t~string11.base,1 + #t~string11.offset := 75];#memory_int := #memory_int[#t~string11.base,2 + #t~string11.offset := 0];call #t~string13.base, #t~string13.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string13.base,#t~string13.offset := 41];#memory_int := #memory_int[#t~string13.base,1 + #t~string13.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(21);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(30);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(9);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(21);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(25);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(25);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(13);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 110];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 79];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 44];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 80];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 117];#memory_int := #memory_int[#t~string60.base,3 + #t~string60.offset := 109];#memory_int := #memory_int[#t~string60.base,4 + #t~string60.offset := 112];#memory_int := #memory_int[#t~string60.base,5 + #t~string60.offset := 58];#memory_int := #memory_int[#t~string60.base,6 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 110];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 79];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 41];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 32];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 10];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 62#L301true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 107#L294true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 71#L309true main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 78#L130true assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 23#L103true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 10#L896-3true [2018-11-18 11:51:09,667 INFO L796 eck$LassoCheckResult]: Loop: 10#L896-3true assume true; 29#L896-1true assume !false; 109#L897true assume test_~splverifierCounter~0 < 4; 69#L898true test_~tmp~8 := test_#t~nondet70;havoc test_#t~nondet70; 83#L906true assume !(0 != test_~tmp~8); 76#L906-2true test_~tmp___0~2 := test_#t~nondet71;havoc test_#t~nondet71; 113#L916true assume !(0 != test_~tmp___0~2); 117#L916-2true test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 32#L926true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 36#L882true assume { :end_inline_startSystem } true; 46#L934-2true assume { :begin_inline_timeShift } true; 60#L700true assume !(0 != ~pumpRunning~0); 66#L700-2true assume !(0 != ~systemActive~0); 108#L707-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 120#L228-1true __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 82#L157true assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 79#L163-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 20#L717true assume { :end_inline_timeShift } true; 10#L896-3true [2018-11-18 11:51:09,672 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:09,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 11:51:09,673 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:09,674 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:09,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:09,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:09,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:51:09,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:51:09,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:09,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1765902021, now seen corresponding path program 1 times [2018-11-18 11:51:09,866 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:09,866 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:09,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:09,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:09,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:09,901 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 11:51:09,902 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:51:09,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:51:09,905 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 11:51:09,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:51:09,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:51:09,915 INFO L87 Difference]: Start difference. First operand 130 states. Second operand 3 states. [2018-11-18 11:51:09,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:09,973 INFO L93 Difference]: Finished difference Result 245 states and 319 transitions. [2018-11-18 11:51:09,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:51:09,975 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 245 states and 319 transitions. [2018-11-18 11:51:09,979 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 160 [2018-11-18 11:51:09,983 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 245 states to 225 states and 298 transitions. [2018-11-18 11:51:09,984 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 225 [2018-11-18 11:51:09,985 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 225 [2018-11-18 11:51:09,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 225 states and 298 transitions. [2018-11-18 11:51:09,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:51:09,986 INFO L705 BuchiCegarLoop]: Abstraction has 225 states and 298 transitions. [2018-11-18 11:51:09,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states and 298 transitions. [2018-11-18 11:51:10,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 222. [2018-11-18 11:51:10,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-11-18 11:51:10,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 294 transitions. [2018-11-18 11:51:10,011 INFO L728 BuchiCegarLoop]: Abstraction has 222 states and 294 transitions. [2018-11-18 11:51:10,011 INFO L608 BuchiCegarLoop]: Abstraction has 222 states and 294 transitions. [2018-11-18 11:51:10,012 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 11:51:10,012 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states and 294 transitions. [2018-11-18 11:51:10,014 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 157 [2018-11-18 11:51:10,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:51:10,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:51:10,015 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:10,015 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] [2018-11-18 11:51:10,015 INFO L794 eck$LassoCheckResult]: Stem: 506#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 44];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 77];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 101];#memory_int := #memory_int[#t~string7.base,3 + #t~string7.offset := 116];#memory_int := #memory_int[#t~string7.base,4 + #t~string7.offset := 104];#memory_int := #memory_int[#t~string7.base,5 + #t~string7.offset := 58];#memory_int := #memory_int[#t~string7.base,6 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 67];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 82];#memory_int := #memory_int[#t~string9.base,2 + #t~string9.offset := 73];#memory_int := #memory_int[#t~string9.base,3 + #t~string9.offset := 84];#memory_int := #memory_int[#t~string9.base,4 + #t~string9.offset := 0];call #t~string11.base, #t~string11.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string11.base,#t~string11.offset := 79];#memory_int := #memory_int[#t~string11.base,1 + #t~string11.offset := 75];#memory_int := #memory_int[#t~string11.base,2 + #t~string11.offset := 0];call #t~string13.base, #t~string13.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string13.base,#t~string13.offset := 41];#memory_int := #memory_int[#t~string13.base,1 + #t~string13.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(21);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(30);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(9);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(21);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(25);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(25);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(13);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 110];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 79];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 44];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 80];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 117];#memory_int := #memory_int[#t~string60.base,3 + #t~string60.offset := 109];#memory_int := #memory_int[#t~string60.base,4 + #t~string60.offset := 112];#memory_int := #memory_int[#t~string60.base,5 + #t~string60.offset := 58];#memory_int := #memory_int[#t~string60.base,6 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 110];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 79];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 41];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 32];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 10];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 391#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 392#L301 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 466#L294 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 472#L309 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 473#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 411#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 395#L896-3 [2018-11-18 11:51:10,016 INFO L796 eck$LassoCheckResult]: Loop: 395#L896-3 assume true; 396#L896-1 assume !false; 418#L897 assume test_~splverifierCounter~0 < 4; 511#L898 test_~tmp~8 := test_#t~nondet70;havoc test_#t~nondet70; 487#L906 assume !(0 != test_~tmp~8); 489#L906-2 test_~tmp___0~2 := test_#t~nondet71;havoc test_#t~nondet71; 515#L916 assume !(0 != test_~tmp___0~2); 492#L916-2 test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 539#L926 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 423#L882 assume { :end_inline_startSystem } true; 430#L934-2 assume { :begin_inline_timeShift } true; 536#L700 assume !(0 != ~pumpRunning~0); 468#L700-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 469#L732 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 493#L724-1 assume { :end_inline_processEnvironment__wrappee__base } true; 457#L732-1 assume { :end_inline_processEnvironment } true; 508#L707-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 510#L228-1 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 485#L157 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 481#L163-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 409#L717 assume { :end_inline_timeShift } true; 395#L896-3 [2018-11-18 11:51:10,016 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:10,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 11:51:10,016 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:10,016 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:10,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:10,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:10,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:51:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:51:10,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:10,085 INFO L82 PathProgramCache]: Analyzing trace with hash 922937716, now seen corresponding path program 1 times [2018-11-18 11:51:10,085 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:10,085 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:10,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:10,086 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:51:10,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:10,109 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 11:51:10,109 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:51:10,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:51:10,110 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 11:51:10,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:51:10,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:51:10,110 INFO L87 Difference]: Start difference. First operand 222 states and 294 transitions. cyclomatic complexity: 75 Second operand 3 states. [2018-11-18 11:51:10,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:10,180 INFO L93 Difference]: Finished difference Result 350 states and 451 transitions. [2018-11-18 11:51:10,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:51:10,181 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 350 states and 451 transitions. [2018-11-18 11:51:10,184 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2018-11-18 11:51:10,186 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 350 states to 350 states and 451 transitions. [2018-11-18 11:51:10,187 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 350 [2018-11-18 11:51:10,187 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 350 [2018-11-18 11:51:10,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 350 states and 451 transitions. [2018-11-18 11:51:10,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:51:10,189 INFO L705 BuchiCegarLoop]: Abstraction has 350 states and 451 transitions. [2018-11-18 11:51:10,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states and 451 transitions. [2018-11-18 11:51:10,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2018-11-18 11:51:10,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2018-11-18 11:51:10,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 451 transitions. [2018-11-18 11:51:10,203 INFO L728 BuchiCegarLoop]: Abstraction has 350 states and 451 transitions. [2018-11-18 11:51:10,203 INFO L608 BuchiCegarLoop]: Abstraction has 350 states and 451 transitions. [2018-11-18 11:51:10,203 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 11:51:10,203 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 350 states and 451 transitions. [2018-11-18 11:51:10,206 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2018-11-18 11:51:10,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:51:10,206 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:51:10,206 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:10,207 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] [2018-11-18 11:51:10,207 INFO L794 eck$LassoCheckResult]: Stem: 1093#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 44];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 77];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 101];#memory_int := #memory_int[#t~string7.base,3 + #t~string7.offset := 116];#memory_int := #memory_int[#t~string7.base,4 + #t~string7.offset := 104];#memory_int := #memory_int[#t~string7.base,5 + #t~string7.offset := 58];#memory_int := #memory_int[#t~string7.base,6 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 67];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 82];#memory_int := #memory_int[#t~string9.base,2 + #t~string9.offset := 73];#memory_int := #memory_int[#t~string9.base,3 + #t~string9.offset := 84];#memory_int := #memory_int[#t~string9.base,4 + #t~string9.offset := 0];call #t~string11.base, #t~string11.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string11.base,#t~string11.offset := 79];#memory_int := #memory_int[#t~string11.base,1 + #t~string11.offset := 75];#memory_int := #memory_int[#t~string11.base,2 + #t~string11.offset := 0];call #t~string13.base, #t~string13.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string13.base,#t~string13.offset := 41];#memory_int := #memory_int[#t~string13.base,1 + #t~string13.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(21);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(30);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(9);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(21);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(25);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(25);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(13);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 110];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 79];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 44];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 80];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 117];#memory_int := #memory_int[#t~string60.base,3 + #t~string60.offset := 109];#memory_int := #memory_int[#t~string60.base,4 + #t~string60.offset := 112];#memory_int := #memory_int[#t~string60.base,5 + #t~string60.offset := 58];#memory_int := #memory_int[#t~string60.base,6 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 110];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 79];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 41];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 32];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 10];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 968#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 969#L301 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1054#L294 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1062#L309 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1063#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 989#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 990#L896-3 [2018-11-18 11:51:10,207 INFO L796 eck$LassoCheckResult]: Loop: 990#L896-3 assume true; 997#L896-1 assume !false; 998#L897 assume test_~splverifierCounter~0 < 4; 1269#L898 test_~tmp~8 := test_#t~nondet70;havoc test_#t~nondet70; 1287#L906 assume !(0 != test_~tmp~8); 1285#L906-2 test_~tmp___0~2 := test_#t~nondet71;havoc test_#t~nondet71; 1283#L916 assume !(0 != test_~tmp___0~2); 1281#L916-2 test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 1188#L926 assume !(0 != test_~tmp___2~0);test_~tmp___1~1 := test_#t~nondet73;havoc test_#t~nondet73; 1187#L934 assume !(0 != test_~tmp___1~1); 1010#L934-2 assume { :begin_inline_timeShift } true; 1186#L700 assume !(0 != ~pumpRunning~0); 1172#L700-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1185#L732 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; 1049#L268 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; 1050#L273 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 1061#L852 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1183#L852-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 1182#L858 processEnvironment_#t~ret50 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5 := processEnvironment_#t~ret50;havoc processEnvironment_#t~ret50; 1180#L736 assume !(0 != processEnvironment_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 1181#L724 assume { :end_inline_processEnvironment__wrappee__base } true; 1280#L732-1 assume { :end_inline_processEnvironment } true; 1279#L707-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 1275#L228-1 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 1272#L157 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 1271#L163-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1270#L717 assume { :end_inline_timeShift } true; 990#L896-3 [2018-11-18 11:51:10,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:10,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 11:51:10,208 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:10,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:10,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:10,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:10,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:51:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:51:10,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:10,260 INFO L82 PathProgramCache]: Analyzing trace with hash -350967954, now seen corresponding path program 1 times [2018-11-18 11:51:10,260 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:10,260 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:10,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:10,261 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:51:10,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:51:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:51:10,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:10,273 INFO L82 PathProgramCache]: Analyzing trace with hash 24319786, now seen corresponding path program 1 times [2018-11-18 11:51:10,273 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:10,273 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:10,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:10,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:10,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:10,358 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 11:51:10,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:51:10,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 11:51:10,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:51:10,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:51:10,484 INFO L87 Difference]: Start difference. First operand 350 states and 451 transitions. cyclomatic complexity: 104 Second operand 5 states. [2018-11-18 11:51:10,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:10,615 INFO L93 Difference]: Finished difference Result 1214 states and 1556 transitions. [2018-11-18 11:51:10,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 11:51:10,616 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1214 states and 1556 transitions. [2018-11-18 11:51:10,628 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 934 [2018-11-18 11:51:10,636 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1214 states to 1214 states and 1556 transitions. [2018-11-18 11:51:10,636 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1214 [2018-11-18 11:51:10,637 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1214 [2018-11-18 11:51:10,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1214 states and 1556 transitions. [2018-11-18 11:51:10,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:51:10,641 INFO L705 BuchiCegarLoop]: Abstraction has 1214 states and 1556 transitions. [2018-11-18 11:51:10,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states and 1556 transitions. [2018-11-18 11:51:10,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 693. [2018-11-18 11:51:10,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2018-11-18 11:51:10,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 879 transitions. [2018-11-18 11:51:10,661 INFO L728 BuchiCegarLoop]: Abstraction has 693 states and 879 transitions. [2018-11-18 11:51:10,661 INFO L608 BuchiCegarLoop]: Abstraction has 693 states and 879 transitions. [2018-11-18 11:51:10,661 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 11:51:10,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 693 states and 879 transitions. [2018-11-18 11:51:10,665 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 510 [2018-11-18 11:51:10,665 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:51:10,665 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:51:10,665 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:10,666 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:10,666 INFO L794 eck$LassoCheckResult]: Stem: 2680#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 44];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 77];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 101];#memory_int := #memory_int[#t~string7.base,3 + #t~string7.offset := 116];#memory_int := #memory_int[#t~string7.base,4 + #t~string7.offset := 104];#memory_int := #memory_int[#t~string7.base,5 + #t~string7.offset := 58];#memory_int := #memory_int[#t~string7.base,6 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 67];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 82];#memory_int := #memory_int[#t~string9.base,2 + #t~string9.offset := 73];#memory_int := #memory_int[#t~string9.base,3 + #t~string9.offset := 84];#memory_int := #memory_int[#t~string9.base,4 + #t~string9.offset := 0];call #t~string11.base, #t~string11.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string11.base,#t~string11.offset := 79];#memory_int := #memory_int[#t~string11.base,1 + #t~string11.offset := 75];#memory_int := #memory_int[#t~string11.base,2 + #t~string11.offset := 0];call #t~string13.base, #t~string13.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string13.base,#t~string13.offset := 41];#memory_int := #memory_int[#t~string13.base,1 + #t~string13.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(21);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(30);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(9);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(21);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(25);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(25);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(13);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 110];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 79];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 44];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 80];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 117];#memory_int := #memory_int[#t~string60.base,3 + #t~string60.offset := 109];#memory_int := #memory_int[#t~string60.base,4 + #t~string60.offset := 112];#memory_int := #memory_int[#t~string60.base,5 + #t~string60.offset := 58];#memory_int := #memory_int[#t~string60.base,6 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 110];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 79];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 41];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 32];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 10];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 2552#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 2553#L301 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2638#L294 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 2643#L309 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 2644#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 2574#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2556#L896-3 [2018-11-18 11:51:10,666 INFO L796 eck$LassoCheckResult]: Loop: 2556#L896-3 assume true; 2557#L896-1 assume !false; 2580#L897 assume test_~splverifierCounter~0 < 4; 2641#L898 test_~tmp~8 := test_#t~nondet70;havoc test_#t~nondet70; 2642#L906 assume !(0 != test_~tmp~8); 2651#L906-2 test_~tmp___0~2 := test_#t~nondet71;havoc test_#t~nondet71; 2652#L916 assume !(0 != test_~tmp___0~2); 2981#L916-2 test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 3228#L926 assume !(0 != test_~tmp___2~0);test_~tmp___1~1 := test_#t~nondet73;havoc test_#t~nondet73; 3224#L934 assume !(0 != test_~tmp___1~1); 2594#L934-2 assume { :begin_inline_timeShift } true; 2635#L700 assume !(0 != ~pumpRunning~0); 2636#L700-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 2640#L732 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; 3006#L268 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; 3003#L273 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 3001#L852 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 2999#L852-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 2996#L858 processEnvironment_#t~ret50 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5 := processEnvironment_#t~ret50;havoc processEnvironment_#t~ret50; 2994#L736 assume !(0 != processEnvironment_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 2661#L724 assume { :end_inline_processEnvironment__wrappee__base } true; 2627#L732-1 assume { :end_inline_processEnvironment } true; 2683#L707-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 2684#L228-1 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 2659#L157 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 2609#L260 __utac_acc__Specification3_spec__1_#t~ret2 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret2;havoc __utac_acc__Specification3_spec__1_#t~ret2; 2610#L163 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 2655#L163-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2570#L717 assume { :end_inline_timeShift } true; 2556#L896-3 [2018-11-18 11:51:10,666 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:10,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2018-11-18 11:51:10,667 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:10,667 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:10,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:10,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:10,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:51:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:51:10,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:10,714 INFO L82 PathProgramCache]: Analyzing trace with hash 2023464897, now seen corresponding path program 1 times [2018-11-18 11:51:10,714 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:10,714 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:10,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:10,715 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:51:10,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:51:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:51:10,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:10,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1897730173, now seen corresponding path program 1 times [2018-11-18 11:51:10,738 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:10,738 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:10,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:10,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:10,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:51:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:51:10,902 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2018-11-18 11:51:57,166 WARN L180 SmtUtils]: Spent 46.21 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 11:52:21,488 WARN L180 SmtUtils]: Spent 24.32 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 11:52:21,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 11:52:21 BoogieIcfgContainer [2018-11-18 11:52:21,555 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 11:52:21,555 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:52:21,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:52:21,555 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:52:21,556 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:51:09" (3/4) ... [2018-11-18 11:52:21,557 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 11:52:21,604 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5ac23013-e5de-40da-8f4e-b5514df42237/bin-2019/uautomizer/witness.graphml [2018-11-18 11:52:21,605 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:52:21,605 INFO L168 Benchmark]: Toolchain (without parser) took 73055.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -174.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:52:21,606 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:52:21,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -167.4 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:52:21,606 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.86 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 11:52:21,607 INFO L168 Benchmark]: Boogie Preprocessor took 28.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:52:21,607 INFO L168 Benchmark]: RCFGBuilder took 558.62 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: 58.4 MB). Peak memory consumption was 58.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:52:21,607 INFO L168 Benchmark]: BuchiAutomizer took 71973.24 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -79.1 MB). Peak memory consumption was 237.1 MB. Max. memory is 11.5 GB. [2018-11-18 11:52:21,612 INFO L168 Benchmark]: Witness Printer took 49.48 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: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:52:21,614 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 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 392.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -167.4 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.86 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 28.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 558.62 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: 58.4 MB). Peak memory consumption was 58.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 71973.24 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -79.1 MB). Peak memory consumption was 237.1 MB. Max. memory is 11.5 GB. * Witness Printer took 49.48 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: 5.2 MB). Peak memory consumption was 5.2 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 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 5 locations. The remainder module has 693 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 71.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 71.4s. Construction of modules took 0.1s. 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, 524 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 693 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 545 SDtfs, 849 SDslu, 955 SDs, 0 SdLazy, 115 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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: 896]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44fa814b=0, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3035cd45=0, "Off"=0, "On"=0, "__utac__get_this_argtype"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a377934=0, retValue_acc=0, "libacc.c"=0, "libacc.c"=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41ffd387=0, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, ",Meth:"=31, ",Pump:"=0, "__utac__get_this_arg"=19, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "OK"=28, "Off"=35, "On"=36, methaneLevelCritical=0, "libacc.c"=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e9eed04=0, tmp___0=0, "\n"=0, "i > 0 && i <= this->argsCount"=26, ") "=0, "\n"=8, tmp___1=0, tmp=0, tmp___0=1, "i > 0 && i <= this->argsCount"=22, tmp=0, cleanupTimeShifts=4, "libacc.c"=24, "i > 0 && i <= this->argsCount"=18, "i > 0 && i <= this->argsCount"=11, NULL=0, systemActive=1, waterLevel=1, \result=1, "__utac__get_this_arg"=0, "Off"=37, \result=0, "__utac__get_this_argtype"=12, "__utac__get_this_argtype"=16, "Pump(System:"=0, retValue_acc=1, ",Pump:"=38, "Off"=0, "On"=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a0f1a49=0, "i > 0 && i <= this->argsCount"=0, ") "=40, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "__utac__get_this_arg"=23, retValue_acc=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d681652=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14cd1cba=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59fcf17e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c66167f=0, retValue_acc=0, "Env(Water:%i"=33, tmp=1, tmp___2=0, tmp___0=0, splverifierCounter=0, "CRIT"=0, ",Meth:"=0, "Env(Water:%i"=0, \result=0, "CRIT"=29, tmp___1=0, head=0, tmp=0, "libacc.c"=0, "libacc.c"=17, ")"=0, "OK"=0, "On"=39, ")"=27, "Pump(System:"=14} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 896]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L237] FCALL "Env(Water:%i" [L238] FCALL ",Meth:" [L242] FCALL "CRIT" [L246] FCALL "OK" [L250] FCALL ")" [L620] FCALL "i > 0 && i <= this->argsCount" [L620] FCALL "libacc.c" [L621] FCALL "__utac__get_this_arg" [L627] FCALL "i > 0 && i <= this->argsCount" [L627] FCALL "libacc.c" [L628] FCALL "__utac__get_this_arg" [L666] FCALL "i > 0 && i <= this->argsCount" [L666] FCALL "libacc.c" [L667] FCALL "__utac__get_this_argtype" [L673] FCALL "i > 0 && i <= this->argsCount" [L673] FCALL "libacc.c" [L674] FCALL "__utac__get_this_argtype" [L812] FCALL "Pump(System:" [L816] FCALL "On" [L820] FCALL "Off" [L824] FCALL ",Pump:" [L828] FCALL "On" [L832] FCALL "Off" [L836] FCALL ") " [L838] FCALL "\n" [L40] int cleanupTimeShifts = 4; [L185] int waterLevel = 1; [L186] int methaneLevelCritical = 0; [L693] int pumpRunning = 0; [L694] int systemActive = 1; [L492] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L305] int retValue_acc ; [L308] retValue_acc = 1 [L309] RET return (retValue_acc); [L128] EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L887] int splverifierCounter ; [L888] int tmp ; [L889] int tmp___0 ; [L890] int tmp___1 ; [L891] int tmp___2 ; [L894] splverifierCounter = 0 Loop: [L896] COND TRUE 1 [L898] COND TRUE splverifierCounter < 4 [L904] tmp = __VERIFIER_nondet_int() [L906] COND FALSE !(\read(tmp)) [L914] tmp___0 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___0)) [L924] tmp___2 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___2)) [L932] tmp___1 = __VERIFIER_nondet_int() [L934] COND FALSE !(\read(tmp___1)) [L943] CALL timeShift() [L700] COND FALSE !(\read(pumpRunning)) [L707] COND TRUE \read(systemActive) [L709] CALL processEnvironment() [L729] int tmp ; [L732] COND TRUE ! pumpRunning [L734] CALL, EXPR isHighWaterLevel() [L844] int retValue_acc ; [L845] int tmp ; [L846] int tmp___0 ; [L850] CALL, EXPR isHighWaterSensorDry() [L265] int retValue_acc ; [L268] COND TRUE waterLevel < 2 [L269] retValue_acc = 1 [L270] RET return (retValue_acc); [L850] EXPR isHighWaterSensorDry() [L850] tmp = isHighWaterSensorDry() [L852] COND TRUE \read(tmp) [L853] tmp___0 = 0 [L857] retValue_acc = tmp___0 [L858] RET return (retValue_acc); [L734] EXPR isHighWaterLevel() [L734] tmp = isHighWaterLevel() [L736] COND FALSE !(\read(tmp)) [L742] RET, FCALL processEnvironment__wrappee__base() [L709] processEnvironment() [L715] CALL __utac_acc__Specification3_spec__1() [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L155] CALL, EXPR isMethaneLevelCritical() [L224] int retValue_acc ; [L227] retValue_acc = methaneLevelCritical [L228] RET return (retValue_acc); [L155] EXPR isMethaneLevelCritical() [L155] tmp = isMethaneLevelCritical() [L157] COND FALSE !(\read(tmp)) [L161] CALL, EXPR getWaterLevel() [L256] int retValue_acc ; [L259] retValue_acc = waterLevel [L260] RET return (retValue_acc); [L161] EXPR getWaterLevel() [L161] tmp___0 = getWaterLevel() [L163] COND FALSE, RET !(tmp___0 == 2) [L715] RET __utac_acc__Specification3_spec__1() [L943] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...