./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product59_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_bafa865c-7cb9-481d-83ea-3c63b577c59f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bafa865c-7cb9-481d-83ea-3c63b577c59f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bafa865c-7cb9-481d-83ea-3c63b577c59f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bafa865c-7cb9-481d-83ea-3c63b577c59f/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product59_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bafa865c-7cb9-481d-83ea-3c63b577c59f/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bafa865c-7cb9-481d-83ea-3c63b577c59f/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 fb1767f688fc9701e1f3b125f3120ace113b61a7 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:55:17,681 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:55:17,682 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:55:17,691 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:55:17,692 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:55:17,694 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:55:17,695 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:55:17,697 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:55:17,699 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:55:17,699 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:55:17,700 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:55:17,700 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:55:17,701 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:55:17,702 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:55:17,703 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:55:17,704 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:55:17,704 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:55:17,705 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:55:17,707 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:55:17,708 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:55:17,708 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:55:17,709 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:55:17,712 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:55:17,712 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:55:17,712 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:55:17,713 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:55:17,713 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:55:17,714 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:55:17,715 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:55:17,716 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:55:17,717 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:55:17,717 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:55:17,717 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:55:17,717 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:55:17,718 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:55:17,718 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:55:17,718 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bafa865c-7cb9-481d-83ea-3c63b577c59f/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 08:55:17,728 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:55:17,728 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:55:17,729 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:55:17,729 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:55:17,729 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:55:17,730 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 08:55:17,730 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 08:55:17,730 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 08:55:17,730 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 08:55:17,730 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 08:55:17,730 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 08:55:17,730 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:55:17,730 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:55:17,730 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 08:55:17,730 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 08:55:17,730 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:55:17,731 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:55:17,731 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 08:55:17,731 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 08:55:17,731 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 08:55:17,731 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:55:17,731 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:55:17,731 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 08:55:17,731 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:55:17,731 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 08:55:17,732 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:55:17,732 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:55:17,732 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 08:55:17,732 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:55:17,732 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 08:55:17,733 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 08:55:17,734 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 08:55:17,734 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_bafa865c-7cb9-481d-83ea-3c63b577c59f/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 -> fb1767f688fc9701e1f3b125f3120ace113b61a7 [2018-11-18 08:55:17,760 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:55:17,769 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:55:17,773 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:55:17,775 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:55:17,776 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:55:17,776 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bafa865c-7cb9-481d-83ea-3c63b577c59f/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product59_false-unreach-call_false-termination.cil.c [2018-11-18 08:55:17,832 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bafa865c-7cb9-481d-83ea-3c63b577c59f/bin-2019/uautomizer/data/0f09efe06/1274c7d855f14f19a066395eacfd3662/FLAG409c9a819 [2018-11-18 08:55:18,212 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:55:18,213 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bafa865c-7cb9-481d-83ea-3c63b577c59f/sv-benchmarks/c/product-lines/minepump_spec3_product59_false-unreach-call_false-termination.cil.c [2018-11-18 08:55:18,223 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bafa865c-7cb9-481d-83ea-3c63b577c59f/bin-2019/uautomizer/data/0f09efe06/1274c7d855f14f19a066395eacfd3662/FLAG409c9a819 [2018-11-18 08:55:18,590 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bafa865c-7cb9-481d-83ea-3c63b577c59f/bin-2019/uautomizer/data/0f09efe06/1274c7d855f14f19a066395eacfd3662 [2018-11-18 08:55:18,593 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:55:18,594 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 08:55:18,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:55:18,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:55:18,598 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:55:18,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:55:18" (1/1) ... [2018-11-18 08:55:18,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f51cc82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:18, skipping insertion in model container [2018-11-18 08:55:18,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:55:18" (1/1) ... [2018-11-18 08:55:18,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:55:18,647 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:55:18,880 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:55:18,889 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:55:18,963 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:55:19,044 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:55:19,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:19 WrapperNode [2018-11-18 08:55:19,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:55:19,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 08:55:19,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 08:55:19,045 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 08:55:19,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:19" (1/1) ... [2018-11-18 08:55:19,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:19" (1/1) ... [2018-11-18 08:55:19,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 08:55:19,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:55:19,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:55:19,106 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:55:19,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:19" (1/1) ... [2018-11-18 08:55:19,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:19" (1/1) ... [2018-11-18 08:55:19,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:19" (1/1) ... [2018-11-18 08:55:19,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:19" (1/1) ... [2018-11-18 08:55:19,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:19" (1/1) ... [2018-11-18 08:55:19,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:19" (1/1) ... [2018-11-18 08:55:19,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:19" (1/1) ... [2018-11-18 08:55:19,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:55:19,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:55:19,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:55:19,145 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:55:19,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bafa865c-7cb9-481d-83ea-3c63b577c59f/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 08:55:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 08:55:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:55:19,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:55:20,092 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:55:20,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:55:20 BoogieIcfgContainer [2018-11-18 08:55:20,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:55:20,093 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 08:55:20,093 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 08:55:20,096 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 08:55:20,097 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:55:20,097 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:55:18" (1/3) ... [2018-11-18 08:55:20,098 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32ac1de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:55:20, skipping insertion in model container [2018-11-18 08:55:20,098 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:55:20,098 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:19" (2/3) ... [2018-11-18 08:55:20,098 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32ac1de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:55:20, skipping insertion in model container [2018-11-18 08:55:20,098 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:55:20,099 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:55:20" (3/3) ... [2018-11-18 08:55:20,100 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product59_false-unreach-call_false-termination.cil.c [2018-11-18 08:55:20,138 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:55:20,139 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 08:55:20,139 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 08:55:20,139 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 08:55:20,139 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:55:20,139 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:55:20,140 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 08:55:20,140 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:55:20,140 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 08:55:20,158 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 198 states. [2018-11-18 08:55:20,190 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2018-11-18 08:55:20,190 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:55:20,190 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:55:20,197 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:55:20,197 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:55:20,197 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 08:55:20,197 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 198 states. [2018-11-18 08:55:20,205 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2018-11-18 08:55:20,205 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:55:20,205 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:55:20,206 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:55:20,206 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:55:20,210 INFO L794 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string38.base,#t~string38.offset := 44];#memory_int := #memory_int[#t~string38.base,1 + #t~string38.offset := 77];#memory_int := #memory_int[#t~string38.base,2 + #t~string38.offset := 101];#memory_int := #memory_int[#t~string38.base,3 + #t~string38.offset := 116];#memory_int := #memory_int[#t~string38.base,4 + #t~string38.offset := 104];#memory_int := #memory_int[#t~string38.base,5 + #t~string38.offset := 58];#memory_int := #memory_int[#t~string38.base,6 + #t~string38.offset := 0];call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 67];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 82];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 73];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 84];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 79];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 75];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 41];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 80];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 117];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 109];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 112];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 110];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 32];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 10];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 15#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3;assume { :begin_inline_select_helpers } true; 170#L641true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 147#L634true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 76#L649true main_#t~ret45 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~3 := main_#t~ret45;havoc main_#t~ret45; 78#L605true assume 0 != main_~tmp~3;assume { :begin_inline_setup } true; 62#L578true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 59#L710-3true [2018-11-18 08:55:20,210 INFO L796 eck$LassoCheckResult]: Loop: 59#L710-3true assume true; 72#L710-1true assume !false; 146#L711true assume test_~splverifierCounter~0 < 4; 192#L712true test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 25#L720true assume !(0 != test_~tmp~5); 5#L720-2true test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 43#L730true assume !(0 != test_~tmp___0~1); 39#L730-2true test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 169#L740true assume 0 != test_~tmp___2~0; 155#L746-2true assume { :begin_inline_timeShift } true; 70#L776true assume !(0 != ~pumpRunning~0); 71#L776-2true assume !(0 != ~systemActive~0); 121#L783-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_#t~ret49, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;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~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 56#L457-2true __utac_acc__Specification3_spec__1_#t~ret47 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret47;havoc __utac_acc__Specification3_spec__1_#t~ret47; 4#L665true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 77#L671-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 45#L793true assume { :end_inline_timeShift } true; 59#L710-3true [2018-11-18 08:55:20,215 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:55:20,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 08:55:20,218 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:55:20,219 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:55:20,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:20,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:55:20,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:55:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:55:20,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:55:20,410 INFO L82 PathProgramCache]: Analyzing trace with hash -545957147, now seen corresponding path program 1 times [2018-11-18 08:55:20,410 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:55:20,410 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:55:20,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:20,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:55:20,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:55:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:55:20,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:55:20,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1477638751, now seen corresponding path program 1 times [2018-11-18 08:55:20,424 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:55:20,424 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:55:20,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:20,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:55:20,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:55:20,593 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 08:55:20,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:55:20,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 08:55:20,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 08:55:20,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 08:55:20,706 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 6 states. [2018-11-18 08:55:21,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:55:21,189 INFO L93 Difference]: Finished difference Result 455 states and 596 transitions. [2018-11-18 08:55:21,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 08:55:21,193 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 455 states and 596 transitions. [2018-11-18 08:55:21,208 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 297 [2018-11-18 08:55:21,218 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 455 states to 425 states and 566 transitions. [2018-11-18 08:55:21,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 425 [2018-11-18 08:55:21,224 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 425 [2018-11-18 08:55:21,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 425 states and 566 transitions. [2018-11-18 08:55:21,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:55:21,227 INFO L705 BuchiCegarLoop]: Abstraction has 425 states and 566 transitions. [2018-11-18 08:55:21,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states and 566 transitions. [2018-11-18 08:55:21,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 245. [2018-11-18 08:55:21,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2018-11-18 08:55:21,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 326 transitions. [2018-11-18 08:55:21,267 INFO L728 BuchiCegarLoop]: Abstraction has 245 states and 326 transitions. [2018-11-18 08:55:21,267 INFO L608 BuchiCegarLoop]: Abstraction has 245 states and 326 transitions. [2018-11-18 08:55:21,267 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 08:55:21,268 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 245 states and 326 transitions. [2018-11-18 08:55:21,269 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 172 [2018-11-18 08:55:21,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:55:21,270 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:55:21,270 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:55:21,271 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:55:21,271 INFO L794 eck$LassoCheckResult]: Stem: 839#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string38.base,#t~string38.offset := 44];#memory_int := #memory_int[#t~string38.base,1 + #t~string38.offset := 77];#memory_int := #memory_int[#t~string38.base,2 + #t~string38.offset := 101];#memory_int := #memory_int[#t~string38.base,3 + #t~string38.offset := 116];#memory_int := #memory_int[#t~string38.base,4 + #t~string38.offset := 104];#memory_int := #memory_int[#t~string38.base,5 + #t~string38.offset := 58];#memory_int := #memory_int[#t~string38.base,6 + #t~string38.offset := 0];call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 67];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 82];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 73];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 84];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 79];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 75];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 41];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 80];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 117];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 109];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 112];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 110];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 32];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 10];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 723#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3;assume { :begin_inline_select_helpers } true; 724#L641 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 794#L634 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 795#L649 main_#t~ret45 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~3 := main_#t~ret45;havoc main_#t~ret45; 840#L605 assume 0 != main_~tmp~3;assume { :begin_inline_setup } true; 830#L578 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 806#L710-3 [2018-11-18 08:55:21,271 INFO L796 eck$LassoCheckResult]: Loop: 806#L710-3 assume true; 828#L710-1 assume !false; 790#L711 assume test_~splverifierCounter~0 < 4; 791#L712 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 749#L720 assume !(0 != test_~tmp~5); 683#L720-2 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 684#L730 assume !(0 != test_~tmp___0~1); 796#L730-2 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 800#L740 assume 0 != test_~tmp___2~0; 822#L746-2 assume { :begin_inline_timeShift } true; 823#L776 assume !(0 != ~pumpRunning~0); 698#L776-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 831#L834 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 742#L808-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 744#L800-3 assume { :end_inline_processEnvironment__wrappee__base } true; 752#L808-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 736#L834-1 assume { :end_inline_processEnvironment } true; 759#L783-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_#t~ret49, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;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~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 760#L457-2 __utac_acc__Specification3_spec__1_#t~ret47 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret47;havoc __utac_acc__Specification3_spec__1_#t~ret47; 678#L665 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 679#L671-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 805#L793 assume { :end_inline_timeShift } true; 806#L710-3 [2018-11-18 08:55:21,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:55:21,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 08:55:21,272 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:55:21,272 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:55:21,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:21,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:55:21,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:55:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:55:21,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:55:21,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1676314786, now seen corresponding path program 1 times [2018-11-18 08:55:21,332 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:55:21,332 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:55:21,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:21,333 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:55:21,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:55:21,365 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 08:55:21,366 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:55:21,366 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:55:21,366 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:55:21,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:55:21,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:55:21,367 INFO L87 Difference]: Start difference. First operand 245 states and 326 transitions. cyclomatic complexity: 84 Second operand 3 states. [2018-11-18 08:55:21,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:55:21,539 INFO L93 Difference]: Finished difference Result 309 states and 394 transitions. [2018-11-18 08:55:21,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:55:21,539 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 309 states and 394 transitions. [2018-11-18 08:55:21,541 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 221 [2018-11-18 08:55:21,543 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 309 states to 309 states and 394 transitions. [2018-11-18 08:55:21,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 309 [2018-11-18 08:55:21,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 309 [2018-11-18 08:55:21,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 309 states and 394 transitions. [2018-11-18 08:55:21,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:55:21,546 INFO L705 BuchiCegarLoop]: Abstraction has 309 states and 394 transitions. [2018-11-18 08:55:21,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states and 394 transitions. [2018-11-18 08:55:21,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2018-11-18 08:55:21,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2018-11-18 08:55:21,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 394 transitions. [2018-11-18 08:55:21,557 INFO L728 BuchiCegarLoop]: Abstraction has 309 states and 394 transitions. [2018-11-18 08:55:21,557 INFO L608 BuchiCegarLoop]: Abstraction has 309 states and 394 transitions. [2018-11-18 08:55:21,557 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 08:55:21,557 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 309 states and 394 transitions. [2018-11-18 08:55:21,559 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 221 [2018-11-18 08:55:21,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:55:21,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:55:21,560 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:55:21,560 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:55:21,560 INFO L794 eck$LassoCheckResult]: Stem: 1405#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string38.base,#t~string38.offset := 44];#memory_int := #memory_int[#t~string38.base,1 + #t~string38.offset := 77];#memory_int := #memory_int[#t~string38.base,2 + #t~string38.offset := 101];#memory_int := #memory_int[#t~string38.base,3 + #t~string38.offset := 116];#memory_int := #memory_int[#t~string38.base,4 + #t~string38.offset := 104];#memory_int := #memory_int[#t~string38.base,5 + #t~string38.offset := 58];#memory_int := #memory_int[#t~string38.base,6 + #t~string38.offset := 0];call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 67];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 82];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 73];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 84];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 79];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 75];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 41];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 80];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 117];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 109];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 112];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 110];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 32];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 10];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1283#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3;assume { :begin_inline_select_helpers } true; 1284#L641 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1360#L634 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 1361#L649 main_#t~ret45 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~3 := main_#t~ret45;havoc main_#t~ret45; 1412#L605 assume 0 != main_~tmp~3;assume { :begin_inline_setup } true; 1398#L578 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1399#L710-3 [2018-11-18 08:55:21,560 INFO L796 eck$LassoCheckResult]: Loop: 1399#L710-3 assume true; 1496#L710-1 assume !false; 1495#L711 assume test_~splverifierCounter~0 < 4; 1427#L712 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 1307#L720 assume !(0 != test_~tmp~5); 1243#L720-2 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 1244#L730 assume !(0 != test_~tmp___0~1); 1359#L730-2 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 1365#L740 assume 0 != test_~tmp___2~0; 1403#L746-2 assume { :begin_inline_timeShift } true; 1505#L776 assume !(0 != ~pumpRunning~0); 1407#L776-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1397#L834 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1302#L808-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 1303#L497-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 1309#L502-1 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 1261#L954-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 1262#L954-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1278#L960-1 processEnvironment__wrappee__highWaterSensor_#t~ret54 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret54;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54; 1381#L812-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6);assume { :begin_inline_processEnvironment__wrappee__base } true; 1383#L800-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1310#L808-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1298#L834-1 assume { :end_inline_processEnvironment } true; 1318#L783-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_#t~ret49, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;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~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 1319#L457-2 __utac_acc__Specification3_spec__1_#t~ret47 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret47;havoc __utac_acc__Specification3_spec__1_#t~ret47; 1236#L665 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 1237#L671-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1413#L793 assume { :end_inline_timeShift } true; 1399#L710-3 [2018-11-18 08:55:21,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:55:21,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 08:55:21,561 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:55:21,561 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:55:21,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:21,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:55:21,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:55:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:55:21,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:55:21,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1490987242, now seen corresponding path program 1 times [2018-11-18 08:55:21,606 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:55:21,606 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:55:21,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:21,612 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:55:21,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:55:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:55:21,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:55:21,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1552998106, now seen corresponding path program 1 times [2018-11-18 08:55:21,629 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:55:21,629 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:55:21,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:21,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:55:21,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:55:21,779 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 08:55:21,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:55:21,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 08:55:21,995 WARN L180 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2018-11-18 08:55:22,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 08:55:22,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 08:55:22,046 INFO L87 Difference]: Start difference. First operand 309 states and 394 transitions. cyclomatic complexity: 88 Second operand 5 states. [2018-11-18 08:55:22,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:55:22,275 INFO L93 Difference]: Finished difference Result 1096 states and 1391 transitions. [2018-11-18 08:55:22,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 08:55:22,282 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1096 states and 1391 transitions. [2018-11-18 08:55:22,293 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 827 [2018-11-18 08:55:22,301 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1096 states to 1096 states and 1391 transitions. [2018-11-18 08:55:22,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1096 [2018-11-18 08:55:22,302 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1096 [2018-11-18 08:55:22,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1096 states and 1391 transitions. [2018-11-18 08:55:22,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:55:22,304 INFO L705 BuchiCegarLoop]: Abstraction has 1096 states and 1391 transitions. [2018-11-18 08:55:22,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states and 1391 transitions. [2018-11-18 08:55:22,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 611. [2018-11-18 08:55:22,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2018-11-18 08:55:22,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 769 transitions. [2018-11-18 08:55:22,334 INFO L728 BuchiCegarLoop]: Abstraction has 611 states and 769 transitions. [2018-11-18 08:55:22,334 INFO L608 BuchiCegarLoop]: Abstraction has 611 states and 769 transitions. [2018-11-18 08:55:22,334 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 08:55:22,335 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 611 states and 769 transitions. [2018-11-18 08:55:22,336 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 442 [2018-11-18 08:55:22,336 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:55:22,337 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:55:22,337 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:55:22,337 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:55:22,337 INFO L794 eck$LassoCheckResult]: Stem: 2846#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string38.base,#t~string38.offset := 44];#memory_int := #memory_int[#t~string38.base,1 + #t~string38.offset := 77];#memory_int := #memory_int[#t~string38.base,2 + #t~string38.offset := 101];#memory_int := #memory_int[#t~string38.base,3 + #t~string38.offset := 116];#memory_int := #memory_int[#t~string38.base,4 + #t~string38.offset := 104];#memory_int := #memory_int[#t~string38.base,5 + #t~string38.offset := 58];#memory_int := #memory_int[#t~string38.base,6 + #t~string38.offset := 0];call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 67];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 82];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 73];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 84];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 79];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 75];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 41];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 80];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 117];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 109];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 112];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 110];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 32];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 10];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 2705#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3;assume { :begin_inline_select_helpers } true; 2706#L641 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2788#L634 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 2789#L649 main_#t~ret45 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~3 := main_#t~ret45;havoc main_#t~ret45; 2854#L605 assume 0 != main_~tmp~3;assume { :begin_inline_setup } true; 2837#L578 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2804#L710-3 [2018-11-18 08:55:22,337 INFO L796 eck$LassoCheckResult]: Loop: 2804#L710-3 assume true; 3234#L710-1 assume !false; 3232#L711 assume test_~splverifierCounter~0 < 4; 3231#L712 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 3229#L720 assume !(0 != test_~tmp~5); 3227#L720-2 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 3224#L730 assume !(0 != test_~tmp___0~1); 3221#L730-2 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 3220#L740 assume 0 != test_~tmp___2~0; 3219#L746-2 assume { :begin_inline_timeShift } true; 3244#L776 assume !(0 != ~pumpRunning~0); 3243#L776-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 3127#L834 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 3191#L808-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 2731#L497-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 2732#L502-1 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 2680#L954-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 2681#L954-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 2695#L960-1 processEnvironment__wrappee__highWaterSensor_#t~ret54 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret54;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54; 2813#L812-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6);assume { :begin_inline_processEnvironment__wrappee__base } true; 2815#L800-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2875#L808-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2851#L834-1 assume { :end_inline_processEnvironment } true; 2745#L783-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_#t~ret49, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;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~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 2746#L457-2 __utac_acc__Specification3_spec__1_#t~ret47 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret47;havoc __utac_acc__Specification3_spec__1_#t~ret47; 2663#L665 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 2664#L489 __utac_acc__Specification3_spec__1_#t~ret48 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret48;havoc __utac_acc__Specification3_spec__1_#t~ret48; 2874#L671 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 2858#L671-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2803#L793 assume { :end_inline_timeShift } true; 2804#L710-3 [2018-11-18 08:55:22,338 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:55:22,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2018-11-18 08:55:22,338 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:55:22,338 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:55:22,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:22,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:55:22,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:55:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:55:22,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:55:22,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1681591945, now seen corresponding path program 1 times [2018-11-18 08:55:22,376 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:55:22,376 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:55:22,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:22,377 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:55:22,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:55:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:55:22,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:55:22,391 INFO L82 PathProgramCache]: Analyzing trace with hash 2078782797, now seen corresponding path program 1 times [2018-11-18 08:55:22,391 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:55:22,391 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:55:22,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:22,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:55:22,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:55:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:55:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:55:22,606 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2018-11-18 08:56:18,700 WARN L180 SmtUtils]: Spent 56.04 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 08:56:34,609 WARN L180 SmtUtils]: Spent 15.91 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 08:56:34,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:56:34 BoogieIcfgContainer [2018-11-18 08:56:34,691 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 08:56:34,691 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:56:34,691 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:56:34,692 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:56:34,693 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:55:20" (3/4) ... [2018-11-18 08:56:34,695 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 08:56:34,760 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bafa865c-7cb9-481d-83ea-3c63b577c59f/bin-2019/uautomizer/witness.graphml [2018-11-18 08:56:34,761 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:56:34,761 INFO L168 Benchmark]: Toolchain (without parser) took 76168.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 955.8 MB in the beginning and 1.1 GB in the end (delta: -192.3 MB). Peak memory consumption was 280.0 MB. Max. memory is 11.5 GB. [2018-11-18 08:56:34,762 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:56:34,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 955.8 MB in the beginning and 1.1 GB in the end (delta: -137.5 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. [2018-11-18 08:56:34,763 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-11-18 08:56:34,763 INFO L168 Benchmark]: Boogie Preprocessor took 39.48 ms. Allocated memory is still 1.1 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 08:56:34,763 INFO L168 Benchmark]: RCFGBuilder took 947.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 11.5 GB. [2018-11-18 08:56:34,763 INFO L168 Benchmark]: BuchiAutomizer took 74597.38 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 41.9 MB). Free memory was 1.0 GB in the beginning and 817.8 MB in the end (delta: 192.6 MB). Peak memory consumption was 243.3 MB. Max. memory is 11.5 GB. [2018-11-18 08:56:34,764 INFO L168 Benchmark]: Witness Printer took 69.86 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.6 MB). Free memory was 817.8 MB in the beginning and 1.1 GB in the end (delta: -330.2 MB). Peak memory consumption was 2.5 MB. Max. memory is 11.5 GB. [2018-11-18 08:56:34,765 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 450.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 955.8 MB in the beginning and 1.1 GB in the end (delta: -137.5 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.48 ms. Allocated memory is still 1.1 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 947.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 74597.38 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 41.9 MB). Free memory was 1.0 GB in the beginning and 817.8 MB in the end (delta: 192.6 MB). Peak memory consumption was 243.3 MB. Max. memory is 11.5 GB. * Witness Printer took 69.86 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.6 MB). Free memory was 817.8 MB in the beginning and 1.1 GB in the end (delta: -330.2 MB). Peak memory consumption was 2.5 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 6 locations. The remainder module has 611 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 74.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 73.3s. Construction of modules took 0.6s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 665 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 611 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 871 SDtfs, 2103 SDslu, 2424 SDs, 0 SdLazy, 185 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 710]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@be653c8=0, "Off"=0, "CRIT"=0, ") "=38, ")"=0, "On"=0, "Off"=29, retValue_acc=0, ",Meth:"=8, "OK"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2704fda1=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64ab5c66=171, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1cea12dc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73915a97=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e1e756e=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f88e153=0, ",Pump:"=0, "Off"=0, tmp=0, "On"=0, tmp___1=0, "__utac__get_this_argtype"=17, "__utac__get_this_arg"=20, tmp___0=1, "__utac__get_this_arg"=24, "libacc.c"=18, "Env(Water:%i"=12, cleanupTimeShifts=4, "libacc.c"=15, "OK"=34, tmp=0, tmp=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, NULL=0, systemActive=1, waterLevel=1, "Off"=36, \result=1, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, ",Meth:"=0, retValue_acc=0, \result=0, ")"=33, \result=1, "i > 0 && i <= this->argsCount"=27, head=0, pumpRunning=0, \result=0, retValue_acc=1, "i > 0 && i <= this->argsCount"=23, tmp=1, "libacc.c"=0, "Env(Water:%i"=0, "i > 0 && i <= this->argsCount"=0, \result=1, "On"=39, retValue_acc=1, "On"=28, "libacc.c"=22, ") "=0, retValue_acc=0, "\n"=0, tmp___2=171, retValue_acc=1, "i > 0 && i <= this->argsCount"=16, tmp___0=0, splverifierCounter=0, "Pump(System:"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4608a79c=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65454aa3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78f482e5=0, \result=0, "\n"=37, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@412df784=0, "Pump(System:"=31, tmp___1=0, head=0, "libacc.c"=0, "libacc.c"=26, "i > 0 && i <= this->argsCount"=19, "__utac__get_this_arg"=0, "__utac__get_this_argtype"=14, tmp=0, "libacc.c"=0, "libacc.c"=0, "CRIT"=11, ",Pump:"=35} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 710]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L337] FCALL "i > 0 && i <= this->argsCount" [L337] FCALL "libacc.c" [L338] FCALL "__utac__get_this_arg" [L344] FCALL "i > 0 && i <= this->argsCount" [L344] FCALL "libacc.c" [L345] FCALL "__utac__get_this_arg" [L383] FCALL "i > 0 && i <= this->argsCount" [L383] FCALL "libacc.c" [L384] FCALL "__utac__get_this_argtype" [L390] FCALL "i > 0 && i <= this->argsCount" [L390] FCALL "libacc.c" [L391] FCALL "__utac__get_this_argtype" [L466] FCALL "Env(Water:%i" [L467] FCALL ",Meth:" [L471] FCALL "CRIT" [L475] FCALL "OK" [L479] FCALL ")" [L914] FCALL "Pump(System:" [L918] FCALL "On" [L922] FCALL "Off" [L926] FCALL ",Pump:" [L930] FCALL "On" [L934] FCALL "Off" [L938] FCALL ") " [L940] FCALL "\n" [L414] int waterLevel = 1; [L415] int methaneLevelCritical = 0; [L517] int cleanupTimeShifts = 4; [L769] int pumpRunning = 0; [L770] int systemActive = 1; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int retValue_acc ; [L597] int tmp ; [L601] FCALL select_helpers() [L602] FCALL select_features() [L603] CALL, EXPR valid_product() [L645] int retValue_acc ; [L648] retValue_acc = 1 [L649] RET return (retValue_acc); [L603] EXPR valid_product() [L603] tmp = valid_product() [L605] COND TRUE \read(tmp) [L607] FCALL setup() [L608] CALL runTest() [L587] CALL test() [L701] int splverifierCounter ; [L702] int tmp ; [L703] int tmp___0 ; [L704] int tmp___1 ; [L705] int tmp___2 ; [L708] splverifierCounter = 0 Loop: [L710] COND TRUE 1 [L712] COND TRUE splverifierCounter < 4 [L718] tmp = __VERIFIER_nondet_int() [L720] COND FALSE !(\read(tmp)) [L728] tmp___0 = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp___0)) [L738] tmp___2 = __VERIFIER_nondet_int() [L740] COND TRUE \read(tmp___2) [L755] CALL timeShift() [L776] COND FALSE !(\read(pumpRunning)) [L783] COND TRUE \read(systemActive) [L785] CALL processEnvironment() [L831] int tmp ; [L834] COND FALSE !(\read(pumpRunning)) [L849] CALL processEnvironment__wrappee__highWaterSensor() [L805] int tmp ; [L808] COND TRUE ! pumpRunning [L810] CALL, EXPR isHighWaterLevel() [L946] int retValue_acc ; [L947] int tmp ; [L948] int tmp___0 ; [L952] CALL, EXPR isHighWaterSensorDry() [L494] int retValue_acc ; [L497] COND TRUE waterLevel < 2 [L498] retValue_acc = 1 [L499] RET return (retValue_acc); [L952] EXPR isHighWaterSensorDry() [L952] tmp = isHighWaterSensorDry() [L954] COND TRUE \read(tmp) [L955] tmp___0 = 0 [L959] retValue_acc = tmp___0 [L960] RET return (retValue_acc); [L810] EXPR isHighWaterLevel() [L810] tmp = isHighWaterLevel() [L812] COND FALSE !(\read(tmp)) [L818] RET, FCALL processEnvironment__wrappee__base() [L849] RET processEnvironment__wrappee__highWaterSensor() [L785] processEnvironment() [L791] CALL __utac_acc__Specification3_spec__1() [L657] int tmp ; [L658] int tmp___0 ; [L659] int tmp___1 ; [L663] CALL, EXPR isMethaneLevelCritical() [L453] int retValue_acc ; [L456] retValue_acc = methaneLevelCritical [L457] RET return (retValue_acc); [L663] EXPR isMethaneLevelCritical() [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L669] CALL, EXPR getWaterLevel() [L485] int retValue_acc ; [L488] retValue_acc = waterLevel [L489] RET return (retValue_acc); [L669] EXPR getWaterLevel() [L669] tmp___0 = getWaterLevel() [L671] COND FALSE, RET !(tmp___0 == 2) [L791] RET __utac_acc__Specification3_spec__1() [L755] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...