./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product37_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_10d1b399-b1b7-42a3-bcf9-7c9ff94ad5cf/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_10d1b399-b1b7-42a3-bcf9-7c9ff94ad5cf/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_10d1b399-b1b7-42a3-bcf9-7c9ff94ad5cf/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_10d1b399-b1b7-42a3-bcf9-7c9ff94ad5cf/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product37_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_10d1b399-b1b7-42a3-bcf9-7c9ff94ad5cf/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_10d1b399-b1b7-42a3-bcf9-7c9ff94ad5cf/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 6a5b3ee1add5adeacf75c411f0af51a190ac6f33 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:03:09,428 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:03:09,429 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:03:09,435 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:03:09,435 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:03:09,436 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:03:09,437 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:03:09,438 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:03:09,439 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:03:09,440 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:03:09,441 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:03:09,441 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:03:09,441 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:03:09,442 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:03:09,442 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:03:09,443 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:03:09,443 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:03:09,445 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:03:09,446 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:03:09,447 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:03:09,448 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:03:09,448 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:03:09,450 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:03:09,450 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:03:09,450 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:03:09,451 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:03:09,452 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:03:09,452 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:03:09,452 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:03:09,453 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:03:09,453 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:03:09,453 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:03:09,453 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:03:09,454 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:03:09,454 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:03:09,455 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:03:09,455 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_10d1b399-b1b7-42a3-bcf9-7c9ff94ad5cf/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 17:03:09,463 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:03:09,464 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:03:09,465 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:03:09,465 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:03:09,465 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 17:03:09,465 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 17:03:09,465 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 17:03:09,465 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 17:03:09,466 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 17:03:09,466 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 17:03:09,466 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 17:03:09,466 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:03:09,466 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:03:09,466 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 17:03:09,466 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:03:09,466 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:03:09,467 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:03:09,467 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 17:03:09,467 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 17:03:09,467 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 17:03:09,467 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:03:09,467 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:03:09,467 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 17:03:09,467 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:03:09,468 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 17:03:09,468 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:03:09,468 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:03:09,468 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 17:03:09,468 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:03:09,468 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 17:03:09,468 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 17:03:09,469 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 17:03:09,469 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_10d1b399-b1b7-42a3-bcf9-7c9ff94ad5cf/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 -> 6a5b3ee1add5adeacf75c411f0af51a190ac6f33 [2018-11-18 17:03:09,493 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:03:09,503 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:03:09,505 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:03:09,506 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:03:09,507 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:03:09,507 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_10d1b399-b1b7-42a3-bcf9-7c9ff94ad5cf/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product37_true-unreach-call_false-termination.cil.c [2018-11-18 17:03:09,549 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_10d1b399-b1b7-42a3-bcf9-7c9ff94ad5cf/bin-2019/uautomizer/data/7435cd99b/8eeafd595e274c7bb5f2f26110fec3f3/FLAGb5f1f4ea2 [2018-11-18 17:03:09,914 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:03:09,914 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_10d1b399-b1b7-42a3-bcf9-7c9ff94ad5cf/sv-benchmarks/c/product-lines/minepump_spec5_product37_true-unreach-call_false-termination.cil.c [2018-11-18 17:03:09,923 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_10d1b399-b1b7-42a3-bcf9-7c9ff94ad5cf/bin-2019/uautomizer/data/7435cd99b/8eeafd595e274c7bb5f2f26110fec3f3/FLAGb5f1f4ea2 [2018-11-18 17:03:10,310 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_10d1b399-b1b7-42a3-bcf9-7c9ff94ad5cf/bin-2019/uautomizer/data/7435cd99b/8eeafd595e274c7bb5f2f26110fec3f3 [2018-11-18 17:03:10,313 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:03:10,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:03:10,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:03:10,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:03:10,317 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:03:10,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:03:10" (1/1) ... [2018-11-18 17:03:10,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa108ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:03:10, skipping insertion in model container [2018-11-18 17:03:10,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:03:10" (1/1) ... [2018-11-18 17:03:10,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:03:10,356 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:03:10,544 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:03:10,553 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:03:10,649 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:03:10,668 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:03:10,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:03:10 WrapperNode [2018-11-18 17:03:10,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:03:10,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:03:10,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:03:10,669 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:03:10,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:03:10" (1/1) ... [2018-11-18 17:03:10,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:03:10" (1/1) ... [2018-11-18 17:03:10,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:03:10,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:03:10,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:03:10,705 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:03:10,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:03:10" (1/1) ... [2018-11-18 17:03:10,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:03:10" (1/1) ... [2018-11-18 17:03:10,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:03:10" (1/1) ... [2018-11-18 17:03:10,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:03:10" (1/1) ... [2018-11-18 17:03:10,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:03:10" (1/1) ... [2018-11-18 17:03:10,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:03:10" (1/1) ... [2018-11-18 17:03:10,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:03:10" (1/1) ... [2018-11-18 17:03:10,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:03:10,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:03:10,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:03:10,730 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:03:10,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:03:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_10d1b399-b1b7-42a3-bcf9-7c9ff94ad5cf/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 17:03:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:03:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:03:10,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:03:11,322 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:03:11,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:03:11 BoogieIcfgContainer [2018-11-18 17:03:11,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:03:11,323 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 17:03:11,323 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 17:03:11,326 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 17:03:11,327 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:03:11,327 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 05:03:10" (1/3) ... [2018-11-18 17:03:11,328 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44eeba57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 05:03:11, skipping insertion in model container [2018-11-18 17:03:11,328 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:03:11,328 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:03:10" (2/3) ... [2018-11-18 17:03:11,329 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44eeba57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 05:03:11, skipping insertion in model container [2018-11-18 17:03:11,329 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:03:11,329 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:03:11" (3/3) ... [2018-11-18 17:03:11,330 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product37_true-unreach-call_false-termination.cil.c [2018-11-18 17:03:11,374 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:03:11,374 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 17:03:11,374 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 17:03:11,374 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 17:03:11,375 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:03:11,375 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:03:11,375 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 17:03:11,375 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:03:11,375 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 17:03:11,386 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states. [2018-11-18 17:03:11,406 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2018-11-18 17:03:11,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:03:11,406 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:03:11,411 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:03:11,411 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] [2018-11-18 17:03:11,412 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 17:03:11,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states. [2018-11-18 17:03:11,416 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2018-11-18 17:03:11,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:03:11,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:03:11,417 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:03:11,417 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] [2018-11-18 17:03:11,420 INFO L794 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(13);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 79];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 110];#memory_int := #memory_int[#t~string20.base,2 + #t~string20.offset := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,3 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 44];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 80];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 117];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 109];#memory_int := #memory_int[#t~string24.base,4 + #t~string24.offset := 112];#memory_int := #memory_int[#t~string24.base,5 + #t~string24.offset := 58];#memory_int := #memory_int[#t~string24.base,6 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 79];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 110];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,3 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 41];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 32];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 10];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 14#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 19#L574true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 119#L567true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 40#L582true main_#t~ret13 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 115#L281true assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 123#L253true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 104#L149true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 5#L497-3true [2018-11-18 17:03:11,420 INFO L796 eck$LassoCheckResult]: Loop: 5#L497-3true assume true; 29#L497-1true assume !false; 134#L498true assume test_~splverifierCounter~0 < 4; 60#L499true test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 87#L507true assume !(0 != test_~tmp~5); 68#L507-2true test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 160#L517true assume !(0 != test_~tmp___0~2); 144#L517-2true test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 44#L527true assume 0 != test_~tmp___2~0; 168#L533-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret10;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 97#L427true __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 165#L159true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 159#L316true assume !(0 != ~pumpRunning~0); 161#L316-2true assume !(0 != ~systemActive~0); 50#L323-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 46#L122true __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 166#L170true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 158#L170-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 118#L333true assume { :end_inline_timeShift } true; 5#L497-3true [2018-11-18 17:03:11,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:03:11,425 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 17:03:11,426 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:03:11,427 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:03:11,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:11,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:03:11,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:03:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:03:11,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:03:11,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1158368419, now seen corresponding path program 1 times [2018-11-18 17:03:11,575 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:03:11,575 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:03:11,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:11,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:03:11,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:03:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:03:11,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:03:11,588 INFO L82 PathProgramCache]: Analyzing trace with hash 271379924, now seen corresponding path program 1 times [2018-11-18 17:03:11,588 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:03:11,588 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:03:11,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:11,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:03:11,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:11,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:03:11,722 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 17:03:11,724 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:03:11,724 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:03:11,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:03:11,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:03:11,823 INFO L87 Difference]: Start difference. First operand 168 states. Second operand 6 states. [2018-11-18 17:03:11,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:03:11,938 INFO L93 Difference]: Finished difference Result 165 states and 214 transitions. [2018-11-18 17:03:11,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 17:03:11,939 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 214 transitions. [2018-11-18 17:03:11,942 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2018-11-18 17:03:11,947 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 155 states and 204 transitions. [2018-11-18 17:03:11,948 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 155 [2018-11-18 17:03:11,949 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 155 [2018-11-18 17:03:11,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 155 states and 204 transitions. [2018-11-18 17:03:11,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:03:11,951 INFO L705 BuchiCegarLoop]: Abstraction has 155 states and 204 transitions. [2018-11-18 17:03:11,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states and 204 transitions. [2018-11-18 17:03:11,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2018-11-18 17:03:11,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-11-18 17:03:11,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 204 transitions. [2018-11-18 17:03:11,985 INFO L728 BuchiCegarLoop]: Abstraction has 155 states and 204 transitions. [2018-11-18 17:03:11,985 INFO L608 BuchiCegarLoop]: Abstraction has 155 states and 204 transitions. [2018-11-18 17:03:11,985 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 17:03:11,985 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 155 states and 204 transitions. [2018-11-18 17:03:11,987 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2018-11-18 17:03:11,987 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:03:11,987 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:03:11,988 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:03:11,988 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] [2018-11-18 17:03:11,988 INFO L794 eck$LassoCheckResult]: Stem: 492#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(13);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 79];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 110];#memory_int := #memory_int[#t~string20.base,2 + #t~string20.offset := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,3 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 44];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 80];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 117];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 109];#memory_int := #memory_int[#t~string24.base,4 + #t~string24.offset := 112];#memory_int := #memory_int[#t~string24.base,5 + #t~string24.offset := 58];#memory_int := #memory_int[#t~string24.base,6 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 79];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 110];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,3 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 41];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 32];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 10];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 372#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 373#L574 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 376#L567 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 405#L582 main_#t~ret13 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 406#L281 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 484#L253 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 480#L149 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 357#L497-3 [2018-11-18 17:03:11,988 INFO L796 eck$LassoCheckResult]: Loop: 357#L497-3 assume true; 358#L497-1 assume !false; 390#L498 assume test_~splverifierCounter~0 < 4; 430#L499 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 431#L507 assume !(0 != test_~tmp~5); 375#L507-2 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 439#L517 assume !(0 != test_~tmp___0~2); 494#L517-2 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 409#L527 assume 0 != test_~tmp___2~0; 365#L533-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret10;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 472#L427 __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 473#L159 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 505#L316 assume !(0 != ~pumpRunning~0); 428#L316-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 502#L374 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 407#L348-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 387#L340-3 assume { :end_inline_processEnvironment__wrappee__base } true; 380#L348-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 392#L374-1 assume { :end_inline_processEnvironment } true; 418#L323-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 412#L122 __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 413#L170 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 354#L170-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 486#L333 assume { :end_inline_timeShift } true; 357#L497-3 [2018-11-18 17:03:11,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:03:11,989 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 17:03:11,989 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:03:11,989 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:03:11,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:11,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:03:11,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:03:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:03:12,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:03:12,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1588772099, now seen corresponding path program 1 times [2018-11-18 17:03:12,033 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:03:12,033 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:03:12,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:12,034 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:03:12,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:03:12,048 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 17:03:12,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:03:12,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:03:12,048 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 17:03:12,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:03:12,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:03:12,049 INFO L87 Difference]: Start difference. First operand 155 states and 204 transitions. cyclomatic complexity: 51 Second operand 3 states. [2018-11-18 17:03:12,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:03:12,118 INFO L93 Difference]: Finished difference Result 221 states and 280 transitions. [2018-11-18 17:03:12,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:03:12,119 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 221 states and 280 transitions. [2018-11-18 17:03:12,122 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 154 [2018-11-18 17:03:12,124 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 221 states to 221 states and 280 transitions. [2018-11-18 17:03:12,124 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 221 [2018-11-18 17:03:12,124 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 221 [2018-11-18 17:03:12,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 221 states and 280 transitions. [2018-11-18 17:03:12,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:03:12,126 INFO L705 BuchiCegarLoop]: Abstraction has 221 states and 280 transitions. [2018-11-18 17:03:12,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states and 280 transitions. [2018-11-18 17:03:12,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2018-11-18 17:03:12,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-11-18 17:03:12,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 280 transitions. [2018-11-18 17:03:12,134 INFO L728 BuchiCegarLoop]: Abstraction has 221 states and 280 transitions. [2018-11-18 17:03:12,134 INFO L608 BuchiCegarLoop]: Abstraction has 221 states and 280 transitions. [2018-11-18 17:03:12,134 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 17:03:12,134 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 221 states and 280 transitions. [2018-11-18 17:03:12,136 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 154 [2018-11-18 17:03:12,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:03:12,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:03:12,137 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:03:12,137 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:03:12,138 INFO L794 eck$LassoCheckResult]: Stem: 878#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(13);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 79];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 110];#memory_int := #memory_int[#t~string20.base,2 + #t~string20.offset := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,3 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 44];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 80];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 117];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 109];#memory_int := #memory_int[#t~string24.base,4 + #t~string24.offset := 112];#memory_int := #memory_int[#t~string24.base,5 + #t~string24.offset := 58];#memory_int := #memory_int[#t~string24.base,6 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 79];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 110];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,3 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 41];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 32];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 10];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 750#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 751#L574 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 758#L567 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 787#L582 main_#t~ret13 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 788#L281 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 870#L253 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 866#L149 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 737#L497-3 [2018-11-18 17:03:12,138 INFO L796 eck$LassoCheckResult]: Loop: 737#L497-3 assume true; 738#L497-1 assume !false; 915#L498 assume test_~splverifierCounter~0 < 4; 914#L499 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 912#L507 assume !(0 != test_~tmp~5); 910#L507-2 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 908#L517 assume !(0 != test_~tmp___0~2); 886#L517-2 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 792#L527 assume 0 != test_~tmp___2~0; 747#L533-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret10;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 858#L427 __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 859#L159 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 892#L316 assume !(0 != ~pumpRunning~0); 893#L316-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 889#L374 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 790#L348-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 791#L130-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 843#L135-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 850#L476-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 871#L476-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 856#L482-1 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 857#L352-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2);assume { :begin_inline_processEnvironment__wrappee__base } true; 763#L340-2 assume { :end_inline_processEnvironment__wrappee__base } true; 764#L348-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 775#L374-1 assume { :end_inline_processEnvironment } true; 802#L323-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 795#L122 __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 796#L170 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 736#L170-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 872#L333 assume { :end_inline_timeShift } true; 737#L497-3 [2018-11-18 17:03:12,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:03:12,138 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 17:03:12,139 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:03:12,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:03:12,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:12,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:03:12,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:03:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:03:12,175 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:03:12,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1604832139, now seen corresponding path program 1 times [2018-11-18 17:03:12,175 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:03:12,175 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:03:12,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:12,178 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:03:12,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:03:12,216 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 17:03:12,216 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:03:12,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:03:12,216 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 17:03:12,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:03:12,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:03:12,217 INFO L87 Difference]: Start difference. First operand 221 states and 280 transitions. cyclomatic complexity: 61 Second operand 5 states. [2018-11-18 17:03:12,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:03:12,338 INFO L93 Difference]: Finished difference Result 620 states and 770 transitions. [2018-11-18 17:03:12,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:03:12,338 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 620 states and 770 transitions. [2018-11-18 17:03:12,342 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 401 [2018-11-18 17:03:12,346 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 620 states to 620 states and 770 transitions. [2018-11-18 17:03:12,346 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 620 [2018-11-18 17:03:12,347 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 620 [2018-11-18 17:03:12,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 620 states and 770 transitions. [2018-11-18 17:03:12,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:03:12,349 INFO L705 BuchiCegarLoop]: Abstraction has 620 states and 770 transitions. [2018-11-18 17:03:12,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states and 770 transitions. [2018-11-18 17:03:12,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 432. [2018-11-18 17:03:12,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2018-11-18 17:03:12,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 536 transitions. [2018-11-18 17:03:12,366 INFO L728 BuchiCegarLoop]: Abstraction has 432 states and 536 transitions. [2018-11-18 17:03:12,367 INFO L608 BuchiCegarLoop]: Abstraction has 432 states and 536 transitions. [2018-11-18 17:03:12,367 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 17:03:12,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 432 states and 536 transitions. [2018-11-18 17:03:12,369 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 306 [2018-11-18 17:03:12,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:03:12,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:03:12,370 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:03:12,370 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:03:12,371 INFO L794 eck$LassoCheckResult]: Stem: 1749#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(13);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 79];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 110];#memory_int := #memory_int[#t~string20.base,2 + #t~string20.offset := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,3 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 44];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 80];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 117];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 109];#memory_int := #memory_int[#t~string24.base,4 + #t~string24.offset := 112];#memory_int := #memory_int[#t~string24.base,5 + #t~string24.offset := 58];#memory_int := #memory_int[#t~string24.base,6 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 79];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 110];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,3 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 41];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 32];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 10];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1613#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 1614#L574 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1615#L567 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1645#L582 main_#t~ret13 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 1646#L281 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 1739#L253 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1733#L149 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1594#L497-3 [2018-11-18 17:03:12,371 INFO L796 eck$LassoCheckResult]: Loop: 1594#L497-3 assume true; 1595#L497-1 assume !false; 1627#L498 assume test_~splverifierCounter~0 < 4; 1753#L499 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 2010#L507 assume !(0 != test_~tmp~5); 2008#L507-2 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 2005#L517 assume !(0 != test_~tmp___0~2); 2003#L517-2 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 2001#L527 assume 0 != test_~tmp___2~0; 1991#L533-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret10;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1990#L427 __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 1989#L159 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1988#L316 assume !(0 != ~pumpRunning~0); 1967#L316-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1766#L374 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 1647#L348-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1648#L130-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1703#L135-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 1715#L476-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1740#L476-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1722#L482-1 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 1723#L352-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2);assume { :begin_inline_processEnvironment__wrappee__base } true; 1752#L340-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1964#L348-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1962#L374-1 assume { :end_inline_processEnvironment } true; 1921#L323-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1911#L122 __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 1774#L170 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1728#L427-1 __utac_acc__Specification5_spec__3_#t~ret12 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret12;havoc __utac_acc__Specification5_spec__3_#t~ret12; 1712#L174 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 1591#L170-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1741#L333 assume { :end_inline_timeShift } true; 1594#L497-3 [2018-11-18 17:03:12,371 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:03:12,371 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2018-11-18 17:03:12,371 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:03:12,372 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:03:12,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:12,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:03:12,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:03:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:03:12,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:03:12,405 INFO L82 PathProgramCache]: Analyzing trace with hash -369522992, now seen corresponding path program 1 times [2018-11-18 17:03:12,405 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:03:12,405 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:03:12,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:12,406 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:03:12,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:03:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:03:12,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:03:12,416 INFO L82 PathProgramCache]: Analyzing trace with hash 227034553, now seen corresponding path program 1 times [2018-11-18 17:03:12,416 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:03:12,416 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:03:12,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:12,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:03:12,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:03:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:03:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:03:12,592 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2018-11-18 17:04:52,504 WARN L180 SmtUtils]: Spent 1.66 m on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 17:05:33,293 WARN L180 SmtUtils]: Spent 40.79 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 17:05:33,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 05:05:33 BoogieIcfgContainer [2018-11-18 17:05:33,357 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 17:05:33,357 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:05:33,357 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:05:33,357 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:05:33,357 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:03:11" (3/4) ... [2018-11-18 17:05:33,359 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 17:05:33,399 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_10d1b399-b1b7-42a3-bcf9-7c9ff94ad5cf/bin-2019/uautomizer/witness.graphml [2018-11-18 17:05:33,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:05:33,400 INFO L168 Benchmark]: Toolchain (without parser) took 143086.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 956.6 MB in the beginning and 886.5 MB in the end (delta: 70.0 MB). Peak memory consumption was 221.0 MB. Max. memory is 11.5 GB. [2018-11-18 17:05:33,400 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:05:33,400 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -138.3 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. [2018-11-18 17:05:33,401 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.45 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:05:33,401 INFO L168 Benchmark]: Boogie Preprocessor took 24.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:05:33,401 INFO L168 Benchmark]: RCFGBuilder took 592.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:05:33,401 INFO L168 Benchmark]: BuchiAutomizer took 142033.38 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 44.6 MB). Free memory was 1.0 GB in the beginning and 894.2 MB in the end (delta: 129.9 MB). Peak memory consumption was 193.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:05:33,402 INFO L168 Benchmark]: Witness Printer took 42.39 ms. Allocated memory is still 1.2 GB. Free memory was 894.2 MB in the beginning and 886.5 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:05:33,403 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 353.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -138.3 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.45 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 592.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 142033.38 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 44.6 MB). Free memory was 1.0 GB in the beginning and 894.2 MB in the end (delta: 129.9 MB). Peak memory consumption was 193.7 MB. Max. memory is 11.5 GB. * Witness Printer took 42.39 ms. Allocated memory is still 1.2 GB. Free memory was 894.2 MB in the beginning and 886.5 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 432 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 141.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 141.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 188 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 432 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 733 SDtfs, 1435 SDslu, 765 SDs, 0 SdLazy, 127 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 497]: 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, "__utac__get_this_arg"=0, "Env(Water:%i"=16, retValue_acc=0, "__utac__get_this_argtype"=39, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@231c0a78=0, "OK"=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49c11309=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, methaneLevelCritical=0, tmp___0=0, "i > 0 && i <= this->argsCount"=0, tmp=0, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=8, "libacc.c"=0, tmp___1=0, tmp=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47e30b40=0, "On"=18, "Off"=23, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4309611d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e418332=158, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@254199a1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78b8a5c0=0, NULL=0, systemActive=1, waterLevel=1, "i > 0 && i <= this->argsCount"=37, \result=1, "\n"=0, ") "=0, "libacc.c"=28, \result=0, "i > 0 && i <= this->argsCount"=31, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, tmp___0=0, \result=1, retValue_acc=1, "Pump(System:"=17, head=0, pumpRunning=0, "i > 0 && i <= this->argsCount"=27, \result=0, "i > 0 && i <= this->argsCount"=35, tmp=1, retValue_acc=1, "libacc.c"=0, "Pump(System:"=0, \result=1, "libacc.c"=36, "libacc.c"=33, "Off"=19, retValue_acc=1, "__utac__get_this_argtype"=0, tmp=1, "CRIT"=14, tmp___2=158, tmp___0=0, ") "=24, "On"=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59f4a7e7=0, splverifierCounter=0, "Env(Water:%i"=0, ",Meth:"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@379fba2e=0, "__utac__get_this_arg"=0, ")"=0, "OK"=0, "CRIT"=0, ")"=12, "libacc.c"=38, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8055ee8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2100dcf6=0, "__utac__get_this_arg"=29, tmp=0, head=0, "On"=0, "Off"=0, ",Pump:"=20, ",Pump:"=0, "On"=0, "\n"=26, ",Meth:"=15, "Off"=0, "__utac__get_this_arg"=34, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 497]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L99] FCALL "Env(Water:%i" [L100] FCALL ",Meth:" [L104] FCALL "CRIT" [L108] FCALL "OK" [L112] FCALL ")" [L436] FCALL "Pump(System:" [L440] FCALL "On" [L444] FCALL "Off" [L448] FCALL ",Pump:" [L452] FCALL "On" [L456] FCALL "Off" [L460] FCALL ") " [L462] FCALL "\n" [L884] FCALL "i > 0 && i <= this->argsCount" [L884] FCALL "libacc.c" [L885] FCALL "__utac__get_this_arg" [L891] FCALL "i > 0 && i <= this->argsCount" [L891] FCALL "libacc.c" [L892] FCALL "__utac__get_this_arg" [L930] FCALL "i > 0 && i <= this->argsCount" [L930] FCALL "libacc.c" [L931] FCALL "__utac__get_this_argtype" [L937] FCALL "i > 0 && i <= this->argsCount" [L937] FCALL "libacc.c" [L938] FCALL "__utac__get_this_argtype" [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L143] int switchedOnBeforeTS ; [L192] int cleanupTimeShifts = 4; [L306] int pumpRunning = 0; [L307] int systemActive = 1; [L756] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L272] int retValue_acc ; [L273] int tmp ; [L277] FCALL select_helpers() [L278] FCALL select_features() [L279] CALL, EXPR valid_product() [L578] int retValue_acc ; [L581] retValue_acc = 1 [L582] RET return (retValue_acc); [L279] EXPR valid_product() [L279] tmp = valid_product() [L281] COND TRUE \read(tmp) [L283] FCALL setup() [L284] CALL runTest() [L262] CALL __utac_acc__Specification5_spec__1() [L148] RET switchedOnBeforeTS = 0 [L262] __utac_acc__Specification5_spec__1() [L263] CALL test() [L488] int splverifierCounter ; [L489] int tmp ; [L490] int tmp___0 ; [L491] int tmp___1 ; [L492] int tmp___2 ; [L495] splverifierCounter = 0 Loop: [L497] COND TRUE 1 [L499] COND TRUE splverifierCounter < 4 [L505] tmp = __VERIFIER_nondet_int() [L507] COND FALSE !(\read(tmp)) [L515] tmp___0 = __VERIFIER_nondet_int() [L517] COND FALSE !(\read(tmp___0)) [L525] tmp___2 = __VERIFIER_nondet_int() [L527] COND TRUE \read(tmp___2) [L540] CALL timeShift() [L314] CALL __utac_acc__Specification5_spec__2() [L157] CALL, EXPR isPumpRunning() [L423] int retValue_acc ; [L426] retValue_acc = pumpRunning [L427] RET return (retValue_acc); [L157] EXPR isPumpRunning() [L157] RET switchedOnBeforeTS = isPumpRunning() [L314] __utac_acc__Specification5_spec__2() [L316] COND FALSE !(\read(pumpRunning)) [L323] COND TRUE \read(systemActive) [L325] CALL processEnvironment() [L371] int tmp ; [L374] COND FALSE !(\read(pumpRunning)) [L389] CALL processEnvironment__wrappee__highWaterSensor() [L345] int tmp ; [L348] COND TRUE ! pumpRunning [L350] CALL, EXPR isHighWaterLevel() [L468] int retValue_acc ; [L469] int tmp ; [L470] int tmp___0 ; [L474] CALL, EXPR isHighWaterSensorDry() [L127] int retValue_acc ; [L130] COND TRUE waterLevel < 2 [L131] retValue_acc = 1 [L132] RET return (retValue_acc); [L474] EXPR isHighWaterSensorDry() [L474] tmp = isHighWaterSensorDry() [L476] COND TRUE \read(tmp) [L477] tmp___0 = 0 [L481] retValue_acc = tmp___0 [L482] RET return (retValue_acc); [L350] EXPR isHighWaterLevel() [L350] tmp = isHighWaterLevel() [L352] COND FALSE !(\read(tmp)) [L358] RET, FCALL processEnvironment__wrappee__base() [L389] RET processEnvironment__wrappee__highWaterSensor() [L325] processEnvironment() [L331] CALL __utac_acc__Specification5_spec__3() [L163] int tmp ; [L164] int tmp___0 ; [L168] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] RET return (retValue_acc); [L168] EXPR getWaterLevel() [L168] tmp = getWaterLevel() [L170] COND TRUE tmp != 2 [L172] CALL, EXPR isPumpRunning() [L423] int retValue_acc ; [L426] retValue_acc = pumpRunning [L427] RET return (retValue_acc); [L172] EXPR isPumpRunning() [L172] tmp___0 = isPumpRunning() [L174] COND FALSE, RET !(\read(tmp___0)) [L331] RET __utac_acc__Specification5_spec__3() [L540] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...