./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product50_true-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_2aecf8e8-1c8c-474e-80a3-952fe0c15cec/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2aecf8e8-1c8c-474e-80a3-952fe0c15cec/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2aecf8e8-1c8c-474e-80a3-952fe0c15cec/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2aecf8e8-1c8c-474e-80a3-952fe0c15cec/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product50_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2aecf8e8-1c8c-474e-80a3-952fe0c15cec/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2aecf8e8-1c8c-474e-80a3-952fe0c15cec/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 96fab9ebc0a7c1449817f0fde656dfd4d62824fd ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 12:49:49,490 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:49:49,491 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:49:49,497 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:49:49,497 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:49:49,498 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:49:49,499 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:49:49,499 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:49:49,500 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:49:49,501 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:49:49,501 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:49:49,501 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:49:49,502 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:49:49,503 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:49:49,503 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:49:49,504 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:49:49,504 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:49:49,506 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:49:49,507 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:49:49,508 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:49:49,509 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:49:49,509 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:49:49,511 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:49:49,511 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:49:49,511 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:49:49,512 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:49:49,512 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:49:49,513 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:49:49,513 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:49:49,514 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:49:49,514 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:49:49,515 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:49:49,515 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:49:49,515 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:49:49,516 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:49:49,516 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:49:49,516 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2aecf8e8-1c8c-474e-80a3-952fe0c15cec/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 12:49:49,524 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:49:49,524 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:49:49,525 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:49:49,525 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:49:49,525 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:49:49,525 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 12:49:49,526 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 12:49:49,526 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 12:49:49,526 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 12:49:49,526 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 12:49:49,526 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 12:49:49,526 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:49:49,526 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:49:49,526 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 12:49:49,527 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:49:49,527 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:49:49,527 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:49:49,527 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 12:49:49,527 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 12:49:49,527 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 12:49:49,527 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:49:49,528 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:49:49,528 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 12:49:49,528 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:49:49,528 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 12:49:49,528 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:49:49,528 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:49:49,528 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 12:49:49,529 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:49:49,529 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:49:49,529 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 12:49:49,529 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 12:49:49,530 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_2aecf8e8-1c8c-474e-80a3-952fe0c15cec/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 -> 96fab9ebc0a7c1449817f0fde656dfd4d62824fd [2018-11-18 12:49:49,552 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:49:49,562 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:49:49,564 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:49:49,565 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:49:49,565 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:49:49,566 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2aecf8e8-1c8c-474e-80a3-952fe0c15cec/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product50_true-unreach-call_false-termination.cil.c [2018-11-18 12:49:49,611 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2aecf8e8-1c8c-474e-80a3-952fe0c15cec/bin-2019/uautomizer/data/dd8e2668d/c7d4e376d23e4296af6097f6c7fa3fc5/FLAGff66f7798 [2018-11-18 12:49:50,068 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:49:50,068 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2aecf8e8-1c8c-474e-80a3-952fe0c15cec/sv-benchmarks/c/product-lines/minepump_spec4_product50_true-unreach-call_false-termination.cil.c [2018-11-18 12:49:50,078 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2aecf8e8-1c8c-474e-80a3-952fe0c15cec/bin-2019/uautomizer/data/dd8e2668d/c7d4e376d23e4296af6097f6c7fa3fc5/FLAGff66f7798 [2018-11-18 12:49:50,086 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2aecf8e8-1c8c-474e-80a3-952fe0c15cec/bin-2019/uautomizer/data/dd8e2668d/c7d4e376d23e4296af6097f6c7fa3fc5 [2018-11-18 12:49:50,088 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:49:50,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:49:50,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:49:50,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:49:50,093 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:49:50,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:49:50" (1/1) ... [2018-11-18 12:49:50,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:49:50, skipping insertion in model container [2018-11-18 12:49:50,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:49:50" (1/1) ... [2018-11-18 12:49:50,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:49:50,138 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:49:50,327 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:49:50,336 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:49:50,432 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:49:50,447 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:49:50,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:49:50 WrapperNode [2018-11-18 12:49:50,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:49:50,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:49:50,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:49:50,448 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:49:50,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:49:50" (1/1) ... [2018-11-18 12:49:50,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:49:50" (1/1) ... [2018-11-18 12:49:50,495 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:49:50,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:49:50,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:49:50,495 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:49:50,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:49:50" (1/1) ... [2018-11-18 12:49:50,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:49:50" (1/1) ... [2018-11-18 12:49:50,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:49:50" (1/1) ... [2018-11-18 12:49:50,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:49:50" (1/1) ... [2018-11-18 12:49:50,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:49:50" (1/1) ... [2018-11-18 12:49:50,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:49:50" (1/1) ... [2018-11-18 12:49:50,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:49:50" (1/1) ... [2018-11-18 12:49:50,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:49:50,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:49:50,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:49:50,522 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:49:50,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:49:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aecf8e8-1c8c-474e-80a3-952fe0c15cec/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 12:49:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:49:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:49:50,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:49:51,135 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:49:51,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:49:51 BoogieIcfgContainer [2018-11-18 12:49:51,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:49:51,136 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 12:49:51,136 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 12:49:51,138 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 12:49:51,138 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:49:51,139 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 12:49:50" (1/3) ... [2018-11-18 12:49:51,139 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63637990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 12:49:51, skipping insertion in model container [2018-11-18 12:49:51,139 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:49:51,139 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:49:50" (2/3) ... [2018-11-18 12:49:51,140 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63637990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 12:49:51, skipping insertion in model container [2018-11-18 12:49:51,140 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:49:51,140 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:49:51" (3/3) ... [2018-11-18 12:49:51,141 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product50_true-unreach-call_false-termination.cil.c [2018-11-18 12:49:51,176 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:49:51,177 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 12:49:51,177 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 12:49:51,177 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 12:49:51,177 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:49:51,177 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:49:51,177 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 12:49:51,178 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:49:51,178 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 12:49:51,191 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 165 states. [2018-11-18 12:49:51,211 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2018-11-18 12:49:51,212 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:49:51,212 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:49:51,216 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:49:51,216 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:49:51,216 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 12:49:51,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 165 states. [2018-11-18 12:49:51,222 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2018-11-18 12:49:51,222 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:49:51,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:49:51,223 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:49:51,223 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:49:51,227 INFO L794 eck$LassoCheckResult]: Stem: 100#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~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 44];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 77];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 101];#memory_int := #memory_int[#t~string42.base,3 + #t~string42.offset := 116];#memory_int := #memory_int[#t~string42.base,4 + #t~string42.offset := 104];#memory_int := #memory_int[#t~string42.base,5 + #t~string42.offset := 58];#memory_int := #memory_int[#t~string42.base,6 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 67];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 82];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 73];#memory_int := #memory_int[#t~string44.base,3 + #t~string44.offset := 84];#memory_int := #memory_int[#t~string44.base,4 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 75];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 41];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(13);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 79];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 110];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 102];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 102];#memory_int := #memory_int[#t~string57.base,3 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 44];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 80];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 117];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 109];#memory_int := #memory_int[#t~string59.base,4 + #t~string59.offset := 112];#memory_int := #memory_int[#t~string59.base,5 + #t~string59.offset := 58];#memory_int := #memory_int[#t~string59.base,6 + #t~string59.offset := 0];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(3);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 41];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 32];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 10];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 83#L570true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 14#L563true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 86#L578true main_#t~ret37 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 149#L525true assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 102#L498true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 64#L909-3true [2018-11-18 12:49:51,227 INFO L796 eck$LassoCheckResult]: Loop: 64#L909-3true assume true; 59#L909-1true assume !false; 4#L910true assume test_~splverifierCounter~0 < 4; 107#L911true test_~tmp~9 := test_#t~nondet70;havoc test_#t~nondet70; 117#L919true assume !(0 != test_~tmp~9); 124#L919-2true test_~tmp___0~3 := test_#t~nondet71;havoc test_#t~nondet71; 22#L929true assume !(0 != test_~tmp___0~3); 29#L929-2true test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 76#L939true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 77#L895true assume { :end_inline_startSystem } true; 81#L947-2true assume { :begin_inline_timeShift } true; 164#L701true assume !(0 != ~pumpRunning~0); 165#L701-2true assume !(0 != ~systemActive~0); 55#L708-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret35, __utac_acc__Specification4_spec__1_#t~ret36, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 119#L663true __utac_acc__Specification4_spec__1_#t~ret35 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret35;havoc __utac_acc__Specification4_spec__1_#t~ret35; 23#L417true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 25#L417-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 110#L718true assume { :end_inline_timeShift } true; 64#L909-3true [2018-11-18 12:49:51,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:49:51,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 12:49:51,232 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:49:51,232 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:49:51,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:51,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:49:51,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:51,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:49:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:49:51,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:49:51,388 INFO L82 PathProgramCache]: Analyzing trace with hash -214396909, now seen corresponding path program 1 times [2018-11-18 12:49:51,388 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:49:51,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:49:51,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:51,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:49:51,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:49:51,423 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 12:49:51,424 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:49:51,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:49:51,427 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:49:51,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:49:51,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:49:51,437 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 3 states. [2018-11-18 12:49:51,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:49:51,487 INFO L93 Difference]: Finished difference Result 162 states and 212 transitions. [2018-11-18 12:49:51,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:49:51,490 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 162 states and 212 transitions. [2018-11-18 12:49:51,493 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 103 [2018-11-18 12:49:51,497 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 162 states to 152 states and 201 transitions. [2018-11-18 12:49:51,498 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 152 [2018-11-18 12:49:51,498 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 152 [2018-11-18 12:49:51,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 152 states and 201 transitions. [2018-11-18 12:49:51,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 12:49:51,500 INFO L705 BuchiCegarLoop]: Abstraction has 152 states and 201 transitions. [2018-11-18 12:49:51,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states and 201 transitions. [2018-11-18 12:49:51,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-11-18 12:49:51,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-11-18 12:49:51,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 201 transitions. [2018-11-18 12:49:51,524 INFO L728 BuchiCegarLoop]: Abstraction has 152 states and 201 transitions. [2018-11-18 12:49:51,524 INFO L608 BuchiCegarLoop]: Abstraction has 152 states and 201 transitions. [2018-11-18 12:49:51,524 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 12:49:51,524 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 201 transitions. [2018-11-18 12:49:51,526 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 103 [2018-11-18 12:49:51,527 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:49:51,527 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:49:51,527 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:49:51,527 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:49:51,528 INFO L794 eck$LassoCheckResult]: Stem: 460#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~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 44];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 77];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 101];#memory_int := #memory_int[#t~string42.base,3 + #t~string42.offset := 116];#memory_int := #memory_int[#t~string42.base,4 + #t~string42.offset := 104];#memory_int := #memory_int[#t~string42.base,5 + #t~string42.offset := 58];#memory_int := #memory_int[#t~string42.base,6 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 67];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 82];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 73];#memory_int := #memory_int[#t~string44.base,3 + #t~string44.offset := 84];#memory_int := #memory_int[#t~string44.base,4 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 75];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 41];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(13);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 79];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 110];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 102];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 102];#memory_int := #memory_int[#t~string57.base,3 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 44];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 80];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 117];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 109];#memory_int := #memory_int[#t~string59.base,4 + #t~string59.offset := 112];#memory_int := #memory_int[#t~string59.base,5 + #t~string59.offset := 58];#memory_int := #memory_int[#t~string59.base,6 + #t~string59.offset := 0];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(3);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 41];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 32];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 10];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 351#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 352#L570 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 355#L563 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 356#L578 main_#t~ret37 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 448#L525 assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 461#L498 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 426#L909-3 [2018-11-18 12:49:51,528 INFO L796 eck$LassoCheckResult]: Loop: 426#L909-3 assume true; 421#L909-1 assume !false; 338#L910 assume test_~splverifierCounter~0 < 4; 339#L911 test_~tmp~9 := test_#t~nondet70;havoc test_#t~nondet70; 463#L919 assume !(0 != test_~tmp~9); 431#L919-2 test_~tmp___0~3 := test_#t~nondet71;havoc test_#t~nondet71; 371#L929 assume !(0 != test_~tmp___0~3); 358#L929-2 test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 377#L939 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 437#L895 assume { :end_inline_startSystem } true; 439#L947-2 assume { :begin_inline_timeShift } true; 442#L701 assume !(0 != ~pumpRunning~0); 481#L701-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 486#L759 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 406#L733-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 389#L725-3 assume { :end_inline_processEnvironment__wrappee__base } true; 386#L733-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 405#L759-1 assume { :end_inline_processEnvironment } true; 411#L708-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret35, __utac_acc__Specification4_spec__1_#t~ret36, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 412#L663 __utac_acc__Specification4_spec__1_#t~ret35 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret35;havoc __utac_acc__Specification4_spec__1_#t~ret35; 368#L417 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 369#L417-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 375#L718 assume { :end_inline_timeShift } true; 426#L909-3 [2018-11-18 12:49:51,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:49:51,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 12:49:51,528 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:49:51,528 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:49:51,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:51,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:49:51,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:49:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:49:51,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:49:51,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1618551095, now seen corresponding path program 1 times [2018-11-18 12:49:51,581 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:49:51,581 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:49:51,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:51,582 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:49:51,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:51,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:49:51,617 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 12:49:51,618 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:49:51,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:49:51,618 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:49:51,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:49:51,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:49:51,619 INFO L87 Difference]: Start difference. First operand 152 states and 201 transitions. cyclomatic complexity: 51 Second operand 3 states. [2018-11-18 12:49:51,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:49:51,700 INFO L93 Difference]: Finished difference Result 210 states and 266 transitions. [2018-11-18 12:49:51,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:49:51,701 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 266 transitions. [2018-11-18 12:49:51,703 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 148 [2018-11-18 12:49:51,704 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 210 states and 266 transitions. [2018-11-18 12:49:51,704 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 210 [2018-11-18 12:49:51,705 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 210 [2018-11-18 12:49:51,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 210 states and 266 transitions. [2018-11-18 12:49:51,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 12:49:51,706 INFO L705 BuchiCegarLoop]: Abstraction has 210 states and 266 transitions. [2018-11-18 12:49:51,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states and 266 transitions. [2018-11-18 12:49:51,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2018-11-18 12:49:51,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-11-18 12:49:51,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 266 transitions. [2018-11-18 12:49:51,714 INFO L728 BuchiCegarLoop]: Abstraction has 210 states and 266 transitions. [2018-11-18 12:49:51,715 INFO L608 BuchiCegarLoop]: Abstraction has 210 states and 266 transitions. [2018-11-18 12:49:51,715 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 12:49:51,715 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 210 states and 266 transitions. [2018-11-18 12:49:51,716 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 148 [2018-11-18 12:49:51,716 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:49:51,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:49:51,717 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:49:51,717 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:49:51,717 INFO L794 eck$LassoCheckResult]: Stem: 833#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~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 44];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 77];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 101];#memory_int := #memory_int[#t~string42.base,3 + #t~string42.offset := 116];#memory_int := #memory_int[#t~string42.base,4 + #t~string42.offset := 104];#memory_int := #memory_int[#t~string42.base,5 + #t~string42.offset := 58];#memory_int := #memory_int[#t~string42.base,6 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 67];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 82];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 73];#memory_int := #memory_int[#t~string44.base,3 + #t~string44.offset := 84];#memory_int := #memory_int[#t~string44.base,4 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 75];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 41];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(13);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 79];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 110];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 102];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 102];#memory_int := #memory_int[#t~string57.base,3 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 44];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 80];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 117];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 109];#memory_int := #memory_int[#t~string59.base,4 + #t~string59.offset := 112];#memory_int := #memory_int[#t~string59.base,5 + #t~string59.offset := 58];#memory_int := #memory_int[#t~string59.base,6 + #t~string59.offset := 0];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(3);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 41];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 32];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 10];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 719#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 720#L570 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 723#L563 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 724#L578 main_#t~ret37 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 822#L525 assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 834#L498 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 796#L909-3 [2018-11-18 12:49:51,717 INFO L796 eck$LassoCheckResult]: Loop: 796#L909-3 assume true; 788#L909-1 assume !false; 706#L910 assume test_~splverifierCounter~0 < 4; 707#L911 test_~tmp~9 := test_#t~nondet70;havoc test_#t~nondet70; 836#L919 assume !(0 != test_~tmp~9); 801#L919-2 test_~tmp___0~3 := test_#t~nondet71;havoc test_#t~nondet71; 735#L929 assume !(0 != test_~tmp___0~3); 726#L929-2 test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 743#L939 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 810#L895 assume { :end_inline_startSystem } true; 812#L947-2 assume { :begin_inline_timeShift } true; 815#L701 assume !(0 != ~pumpRunning~0); 863#L701-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 860#L759 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 776#L733-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 777#L671-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 709#L676-1 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 710#L861-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 839#L861-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 819#L867-1 processEnvironment__wrappee__highWaterSensor_#t~ret49 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret49;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49; 820#L737-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 751#L725-2 assume { :end_inline_processEnvironment__wrappee__base } true; 752#L733-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 775#L759-1 assume { :end_inline_processEnvironment } true; 781#L708-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret35, __utac_acc__Specification4_spec__1_#t~ret36, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 782#L663 __utac_acc__Specification4_spec__1_#t~ret35 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret35;havoc __utac_acc__Specification4_spec__1_#t~ret35; 737#L417 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 738#L417-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 742#L718 assume { :end_inline_timeShift } true; 796#L909-3 [2018-11-18 12:49:51,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:49:51,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 12:49:51,718 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:49:51,718 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:49:51,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:51,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:49:51,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:49:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:49:51,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:49:51,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1508131059, now seen corresponding path program 1 times [2018-11-18 12:49:51,759 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:49:51,759 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:49:51,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:51,760 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:49:51,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:49:51,791 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 12:49:51,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:49:51,792 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 12:49:51,792 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:49:51,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 12:49:51,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:49:51,792 INFO L87 Difference]: Start difference. First operand 210 states and 266 transitions. cyclomatic complexity: 58 Second operand 4 states. [2018-11-18 12:49:51,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:49:51,897 INFO L93 Difference]: Finished difference Result 592 states and 736 transitions. [2018-11-18 12:49:51,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 12:49:51,898 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 592 states and 736 transitions. [2018-11-18 12:49:51,902 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 428 [2018-11-18 12:49:51,909 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 592 states to 592 states and 736 transitions. [2018-11-18 12:49:51,909 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 592 [2018-11-18 12:49:51,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 592 [2018-11-18 12:49:51,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 592 states and 736 transitions. [2018-11-18 12:49:51,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 12:49:51,913 INFO L705 BuchiCegarLoop]: Abstraction has 592 states and 736 transitions. [2018-11-18 12:49:51,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states and 736 transitions. [2018-11-18 12:49:51,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 222. [2018-11-18 12:49:51,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-11-18 12:49:51,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 278 transitions. [2018-11-18 12:49:51,923 INFO L728 BuchiCegarLoop]: Abstraction has 222 states and 278 transitions. [2018-11-18 12:49:51,924 INFO L608 BuchiCegarLoop]: Abstraction has 222 states and 278 transitions. [2018-11-18 12:49:51,924 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 12:49:51,924 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states and 278 transitions. [2018-11-18 12:49:51,925 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 156 [2018-11-18 12:49:51,925 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:49:51,925 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:49:51,926 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:49:51,926 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:49:51,926 INFO L794 eck$LassoCheckResult]: Stem: 1648#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~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 44];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 77];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 101];#memory_int := #memory_int[#t~string42.base,3 + #t~string42.offset := 116];#memory_int := #memory_int[#t~string42.base,4 + #t~string42.offset := 104];#memory_int := #memory_int[#t~string42.base,5 + #t~string42.offset := 58];#memory_int := #memory_int[#t~string42.base,6 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 67];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 82];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 73];#memory_int := #memory_int[#t~string44.base,3 + #t~string44.offset := 84];#memory_int := #memory_int[#t~string44.base,4 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 75];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 41];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(13);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 79];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 110];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 102];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 102];#memory_int := #memory_int[#t~string57.base,3 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 44];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 80];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 117];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 109];#memory_int := #memory_int[#t~string59.base,4 + #t~string59.offset := 112];#memory_int := #memory_int[#t~string59.base,5 + #t~string59.offset := 58];#memory_int := #memory_int[#t~string59.base,6 + #t~string59.offset := 0];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(3);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 41];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 32];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 10];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1531#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 1532#L570 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1535#L563 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1536#L578 main_#t~ret37 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 1634#L525 assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 1649#L498 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1650#L909-3 [2018-11-18 12:49:51,926 INFO L796 eck$LassoCheckResult]: Loop: 1650#L909-3 assume true; 1600#L909-1 assume !false; 1518#L910 assume test_~splverifierCounter~0 < 4; 1519#L911 test_~tmp~9 := test_#t~nondet70;havoc test_#t~nondet70; 1736#L919 assume !(0 != test_~tmp~9); 1734#L919-2 test_~tmp___0~3 := test_#t~nondet71;havoc test_#t~nondet71; 1732#L929 assume !(0 != test_~tmp___0~3); 1729#L929-2 test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 1728#L939 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1726#L895 assume { :end_inline_startSystem } true; 1698#L947-2 assume { :begin_inline_timeShift } true; 1692#L701 assume !(0 != ~pumpRunning~0); 1693#L701-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1687#L759 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1588#L733-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1589#L671-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1521#L676-1 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 1522#L861-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1658#L861-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1635#L867-1 processEnvironment__wrappee__highWaterSensor_#t~ret49 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret49;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49; 1636#L737-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 1563#L725-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1564#L733-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1587#L759-1 assume { :end_inline_processEnvironment } true; 1593#L708-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret35, __utac_acc__Specification4_spec__1_#t~ret36, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 1594#L663 __utac_acc__Specification4_spec__1_#t~ret35 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret35;havoc __utac_acc__Specification4_spec__1_#t~ret35; 1547#L417 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 1548#L417-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1554#L718 assume { :end_inline_timeShift } true; 1650#L909-3 [2018-11-18 12:49:51,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:49:51,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2018-11-18 12:49:51,927 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:49:51,927 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:49:51,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:51,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:49:51,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:49:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:49:51,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:49:51,963 INFO L82 PathProgramCache]: Analyzing trace with hash -497013809, now seen corresponding path program 1 times [2018-11-18 12:49:51,964 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:49:51,964 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:49:51,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:51,964 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:49:51,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:51,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:49:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:49:51,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:49:51,975 INFO L82 PathProgramCache]: Analyzing trace with hash -622748533, now seen corresponding path program 1 times [2018-11-18 12:49:51,975 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:49:51,975 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:49:51,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:51,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:49:51,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:49:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:49:52,148 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2018-11-18 12:50:33,704 WARN L180 SmtUtils]: Spent 41.51 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 12:50:52,272 WARN L180 SmtUtils]: Spent 18.57 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 12:50:52,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 12:50:52 BoogieIcfgContainer [2018-11-18 12:50:52,353 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 12:50:52,353 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:50:52,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:50:52,353 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:50:52,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:49:51" (3/4) ... [2018-11-18 12:50:52,356 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 12:50:52,398 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2aecf8e8-1c8c-474e-80a3-952fe0c15cec/bin-2019/uautomizer/witness.graphml [2018-11-18 12:50:52,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:50:52,399 INFO L168 Benchmark]: Toolchain (without parser) took 62310.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 956.6 MB in the beginning and 993.1 MB in the end (delta: -36.6 MB). Peak memory consumption was 130.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:52,400 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:50:52,400 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -174.8 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:52,401 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:52,401 INFO L168 Benchmark]: Boogie Preprocessor took 26.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:52,401 INFO L168 Benchmark]: RCFGBuilder took 614.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 74.5 MB). Peak memory consumption was 74.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:52,401 INFO L168 Benchmark]: BuchiAutomizer took 61216.97 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 27.3 MB). Free memory was 1.0 GB in the beginning and 997.7 MB in the end (delta: 51.0 MB). Peak memory consumption was 184.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:52,402 INFO L168 Benchmark]: Witness Printer took 45.58 ms. Allocated memory is still 1.2 GB. Free memory was 997.7 MB in the beginning and 993.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:52,404 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 357.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -174.8 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 614.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 74.5 MB). Peak memory consumption was 74.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 61216.97 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 27.3 MB). Free memory was 1.0 GB in the beginning and 997.7 MB in the end (delta: 51.0 MB). Peak memory consumption was 184.6 MB. Max. memory is 11.5 GB. * Witness Printer took 45.58 ms. Allocated memory is still 1.2 GB. Free memory was 997.7 MB in the beginning and 993.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 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 4 locations. The remainder module has 222 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 61.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 60.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 370 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 222 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 769 SDtfs, 742 SDslu, 586 SDs, 0 SdLazy, 93 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 909]: 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, "On"=38, "Off"=0, "OK"=0, "OK"=17, "Env(Water:%i"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1919756d=0, retValue_acc=0, "CRIT"=0, "On"=0, "Off"=34, ",Meth:"=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27a3f9e2=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@173a6b1c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78e32b0b=0, ") "=0, "\n"=0, tmp___1=0, tmp=0, "__utac__get_this_argtype"=24, "__utac__get_this_arg"=28, "__utac__get_this_arg"=8, tmp___0=0, "libacc.c"=26, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e800356=0, "libacc.c"=22, ",Meth:"=18, tmp=0, "Pump(System:"=37, "__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, \result=1, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, \result=0, "CRIT"=16, "On"=0, "Off"=0, "Pump(System:"=0, \result=1, "i > 0 && i <= this->argsCount"=14, head=0, pumpRunning=0, retValue_acc=1, "Off"=31, \result=0, "i > 0 && i <= this->argsCount"=11, tmp=1, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, retValue_acc=1, \result=1, ")"=36, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6880699e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f1a25d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b277716=176, "\n"=40, "On"=35, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c1765f2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47671397=0, "libacc.c"=29, retValue_acc=0, tmp=1, tmp=1, tmp___0=0, retValue_acc=1, tmp___2=176, "i > 0 && i <= this->argsCount"=23, splverifierCounter=0, ",Pump:"=0, ",Pump:"=39, head=0, "libacc.c"=0, "libacc.c"=12, tmp=0, "i > 0 && i <= this->argsCount"=27, "__utac__get_this_arg"=0, "__utac__get_this_argtype"=20, "libacc.c"=0, "libacc.c"=0, "Env(Water:%i"=19, ")"=0, ") "=33} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 909]: 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" [L640] FCALL "Env(Water:%i" [L641] FCALL ",Meth:" [L645] FCALL "CRIT" [L649] FCALL "OK" [L653] FCALL ")" [L821] FCALL "Pump(System:" [L825] FCALL "On" [L829] FCALL "Off" [L833] FCALL ",Pump:" [L837] FCALL "On" [L841] FCALL "Off" [L845] FCALL ") " [L847] FCALL "\n" [L435] int cleanupTimeShifts = 4; [L588] int waterLevel = 1; [L589] int methaneLevelCritical = 0; [L694] int pumpRunning = 0; [L695] int systemActive = 1; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L516] int retValue_acc ; [L517] int tmp ; [L521] FCALL select_helpers() [L522] FCALL select_features() [L523] CALL, EXPR valid_product() [L574] int retValue_acc ; [L577] retValue_acc = 1 [L578] RET return (retValue_acc); [L523] EXPR valid_product() [L523] tmp = valid_product() [L525] COND TRUE \read(tmp) [L527] FCALL setup() [L528] CALL runTest() [L507] CALL test() [L900] int splverifierCounter ; [L901] int tmp ; [L902] int tmp___0 ; [L903] int tmp___1 ; [L904] int tmp___2 ; [L907] splverifierCounter = 0 Loop: [L909] COND TRUE 1 [L911] COND TRUE splverifierCounter < 4 [L917] tmp = __VERIFIER_nondet_int() [L919] COND FALSE !(\read(tmp)) [L927] tmp___0 = __VERIFIER_nondet_int() [L929] COND FALSE !(\read(tmp___0)) [L937] tmp___2 = __VERIFIER_nondet_int() [L939] COND TRUE \read(tmp___2) [L941] CALL startSystem() [L894] RET systemActive = 1 [L941] startSystem() [L954] CALL timeShift() [L701] COND FALSE !(\read(pumpRunning)) [L708] COND TRUE \read(systemActive) [L710] CALL processEnvironment() [L756] int tmp ; [L759] COND FALSE !(\read(pumpRunning)) [L774] CALL processEnvironment__wrappee__highWaterSensor() [L730] int tmp ; [L733] COND TRUE ! pumpRunning [L735] CALL, EXPR isHighWaterLevel() [L853] int retValue_acc ; [L854] int tmp ; [L855] int tmp___0 ; [L859] CALL, EXPR isHighWaterSensorDry() [L668] int retValue_acc ; [L671] COND TRUE waterLevel < 2 [L672] retValue_acc = 1 [L673] RET return (retValue_acc); [L859] EXPR isHighWaterSensorDry() [L859] tmp = isHighWaterSensorDry() [L861] COND TRUE \read(tmp) [L862] tmp___0 = 0 [L866] retValue_acc = tmp___0 [L867] RET return (retValue_acc); [L735] EXPR isHighWaterLevel() [L735] tmp = isHighWaterLevel() [L737] COND FALSE !(\read(tmp)) [L743] RET, FCALL processEnvironment__wrappee__base() [L774] RET processEnvironment__wrappee__highWaterSensor() [L710] processEnvironment() [L716] CALL __utac_acc__Specification4_spec__1() [L410] int tmp ; [L411] int tmp___0 ; [L415] CALL, EXPR getWaterLevel() [L659] int retValue_acc ; [L662] retValue_acc = waterLevel [L663] RET return (retValue_acc); [L415] EXPR getWaterLevel() [L415] tmp = getWaterLevel() [L417] COND FALSE, RET !(tmp == 0) [L716] RET __utac_acc__Specification4_spec__1() [L954] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...