./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product60_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_8989fea1-4629-411c-a6d6-be333c05d3d7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8989fea1-4629-411c-a6d6-be333c05d3d7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8989fea1-4629-411c-a6d6-be333c05d3d7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8989fea1-4629-411c-a6d6-be333c05d3d7/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product60_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8989fea1-4629-411c-a6d6-be333c05d3d7/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8989fea1-4629-411c-a6d6-be333c05d3d7/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 f32a845991ccfb3a908c898acdfb7a48e8a7d63f ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 08:52:49,520 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:52:49,521 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:52:49,528 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:52:49,528 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:52:49,529 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:52:49,529 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:52:49,531 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:52:49,532 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:52:49,532 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:52:49,533 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:52:49,533 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:52:49,534 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:52:49,534 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:52:49,535 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:52:49,536 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:52:49,536 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:52:49,537 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:52:49,538 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:52:49,539 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:52:49,539 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:52:49,540 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:52:49,542 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:52:49,542 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:52:49,542 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:52:49,543 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:52:49,543 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:52:49,544 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:52:49,544 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:52:49,545 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:52:49,545 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:52:49,546 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:52:49,546 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:52:49,546 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:52:49,547 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:52:49,547 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:52:49,547 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8989fea1-4629-411c-a6d6-be333c05d3d7/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 08:52:49,556 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:52:49,556 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:52:49,557 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:52:49,557 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:52:49,557 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:52:49,557 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 08:52:49,557 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 08:52:49,557 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 08:52:49,557 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 08:52:49,558 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 08:52:49,558 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 08:52:49,558 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:52:49,558 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:52:49,558 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 08:52:49,558 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 08:52:49,558 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:52:49,558 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:52:49,558 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 08:52:49,559 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 08:52:49,559 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 08:52:49,559 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:52:49,559 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:52:49,559 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 08:52:49,559 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:52:49,559 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 08:52:49,559 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:52:49,559 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:52:49,560 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 08:52:49,560 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:52:49,560 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 08:52:49,560 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 08:52:49,560 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 08:52:49,561 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_8989fea1-4629-411c-a6d6-be333c05d3d7/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 -> f32a845991ccfb3a908c898acdfb7a48e8a7d63f [2018-11-18 08:52:49,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:52:49,592 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:52:49,595 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:52:49,596 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:52:49,596 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:52:49,597 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8989fea1-4629-411c-a6d6-be333c05d3d7/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product60_true-unreach-call_false-termination.cil.c [2018-11-18 08:52:49,638 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8989fea1-4629-411c-a6d6-be333c05d3d7/bin-2019/uautomizer/data/16e4ad48a/67b8bbc505e5460d84195de402aa825d/FLAG8ecb0bfb8 [2018-11-18 08:52:50,021 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:52:50,022 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8989fea1-4629-411c-a6d6-be333c05d3d7/sv-benchmarks/c/product-lines/minepump_spec5_product60_true-unreach-call_false-termination.cil.c [2018-11-18 08:52:50,031 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8989fea1-4629-411c-a6d6-be333c05d3d7/bin-2019/uautomizer/data/16e4ad48a/67b8bbc505e5460d84195de402aa825d/FLAG8ecb0bfb8 [2018-11-18 08:52:50,405 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8989fea1-4629-411c-a6d6-be333c05d3d7/bin-2019/uautomizer/data/16e4ad48a/67b8bbc505e5460d84195de402aa825d [2018-11-18 08:52:50,408 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:52:50,409 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 08:52:50,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:52:50,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:52:50,412 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:52:50,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:52:50" (1/1) ... [2018-11-18 08:52:50,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f938bda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:50, skipping insertion in model container [2018-11-18 08:52:50,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:52:50" (1/1) ... [2018-11-18 08:52:50,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:52:50,452 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:52:50,653 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:52:50,662 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:52:50,785 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:52:50,805 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:52:50,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:50 WrapperNode [2018-11-18 08:52:50,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:52:50,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 08:52:50,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 08:52:50,807 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 08:52:50,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:50" (1/1) ... [2018-11-18 08:52:50,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:50" (1/1) ... [2018-11-18 08:52:50,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 08:52:50,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:52:50,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:52:50,858 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:52:50,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:50" (1/1) ... [2018-11-18 08:52:50,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:50" (1/1) ... [2018-11-18 08:52:50,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:50" (1/1) ... [2018-11-18 08:52:50,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:50" (1/1) ... [2018-11-18 08:52:50,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:50" (1/1) ... [2018-11-18 08:52:50,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:50" (1/1) ... [2018-11-18 08:52:50,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:50" (1/1) ... [2018-11-18 08:52:50,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:52:50,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:52:50,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:52:50,889 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:52:50,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8989fea1-4629-411c-a6d6-be333c05d3d7/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 08:52:50,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 08:52:50,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:52:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:52:51,569 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:52:51,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:52:51 BoogieIcfgContainer [2018-11-18 08:52:51,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:52:51,570 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 08:52:51,571 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 08:52:51,573 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 08:52:51,573 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:52:51,573 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:52:50" (1/3) ... [2018-11-18 08:52:51,574 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b36a415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:52:51, skipping insertion in model container [2018-11-18 08:52:51,574 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:52:51,574 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:50" (2/3) ... [2018-11-18 08:52:51,575 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b36a415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:52:51, skipping insertion in model container [2018-11-18 08:52:51,575 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:52:51,575 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:52:51" (3/3) ... [2018-11-18 08:52:51,576 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product60_true-unreach-call_false-termination.cil.c [2018-11-18 08:52:51,609 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:52:51,610 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 08:52:51,610 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 08:52:51,610 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 08:52:51,610 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:52:51,610 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:52:51,610 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 08:52:51,610 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:52:51,610 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 08:52:51,624 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 203 states. [2018-11-18 08:52:51,647 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 133 [2018-11-18 08:52:51,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:52:51,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:52:51,654 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:52:51,654 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] [2018-11-18 08:52:51,654 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 08:52:51,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 203 states. [2018-11-18 08:52:51,660 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 133 [2018-11-18 08:52:51,660 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:52:51,661 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:52:51,661 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:52:51,662 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] [2018-11-18 08:52:51,666 INFO L794 eck$LassoCheckResult]: Stem: 82#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 110];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 79];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 102];#memory_int := #memory_int[#t~string9.base,2 + #t~string9.offset := 102];#memory_int := #memory_int[#t~string9.base,3 + #t~string9.offset := 0];call #t~string11.base, #t~string11.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string11.base,#t~string11.offset := 44];#memory_int := #memory_int[#t~string11.base,1 + #t~string11.offset := 80];#memory_int := #memory_int[#t~string11.base,2 + #t~string11.offset := 117];#memory_int := #memory_int[#t~string11.base,3 + #t~string11.offset := 109];#memory_int := #memory_int[#t~string11.base,4 + #t~string11.offset := 112];#memory_int := #memory_int[#t~string11.base,5 + #t~string11.offset := 58];#memory_int := #memory_int[#t~string11.base,6 + #t~string11.offset := 0];call #t~string13.base, #t~string13.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string13.base,#t~string13.offset := 79];#memory_int := #memory_int[#t~string13.base,1 + #t~string13.offset := 110];#memory_int := #memory_int[#t~string13.base,2 + #t~string13.offset := 0];call #t~string15.base, #t~string15.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string15.base,#t~string15.offset := 79];#memory_int := #memory_int[#t~string15.base,1 + #t~string15.offset := 102];#memory_int := #memory_int[#t~string15.base,2 + #t~string15.offset := 102];#memory_int := #memory_int[#t~string15.base,3 + #t~string15.offset := 0];call #t~string17.base, #t~string17.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string17.base,#t~string17.offset := 41];#memory_int := #memory_int[#t~string17.base,1 + #t~string17.offset := 32];#memory_int := #memory_int[#t~string17.base,2 + #t~string17.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string19.base,#t~string19.offset := 10];#memory_int := #memory_int[#t~string19.base,1 + #t~string19.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(30);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(9);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(21);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(30);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(9);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(21);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(25);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(25);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(13);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 44];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 77];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 101];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 116];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 104];#memory_int := #memory_int[#t~string69.base,5 + #t~string69.offset := 58];#memory_int := #memory_int[#t~string69.base,6 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 67];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 82];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 73];#memory_int := #memory_int[#t~string71.base,3 + #t~string71.offset := 84];#memory_int := #memory_int[#t~string71.base,4 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 79];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 75];#memory_int := #memory_int[#t~string73.base,2 + #t~string73.offset := 0];call #t~string75.base, #t~string75.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string75.base,#t~string75.offset := 41];#memory_int := #memory_int[#t~string75.base,1 + #t~string75.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret64, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 163#L906true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 130#L899true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 58#L914true main_#t~ret64 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret64;havoc main_#t~ret64; 63#L870true assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 152#L843true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 148#L375true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 89#L308-3true [2018-11-18 08:52:51,666 INFO L796 eck$LassoCheckResult]: Loop: 89#L308-3true assume true; 83#L308-1true assume !false; 154#L309true assume test_~splverifierCounter~0 < 4; 131#L310true test_~tmp~5 := test_#t~nondet22;havoc test_#t~nondet22; 4#L318true assume !(0 != test_~tmp~5); 5#L318-2true test_~tmp___0~2 := test_#t~nondet23;havoc test_#t~nondet23; 36#L328true assume !(0 != test_~tmp___0~2); 40#L328-2true test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 193#L338true assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet25;havoc test_#t~nondet25; 128#L346true assume !(0 != test_~tmp___1~0); 119#L346-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret26;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 59#L193true __utac_acc__Specification5_spec__2_#t~ret26 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret26;havoc __utac_acc__Specification5_spec__2_#t~ret26; 101#L385true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 35#L64true assume !(0 != ~pumpRunning~0); 21#L64-2true assume !(0 != ~systemActive~0); 97#L71-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 138#L1003true __utac_acc__Specification5_spec__3_#t~ret27 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret27;havoc __utac_acc__Specification5_spec__3_#t~ret27; 100#L396true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 105#L396-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 8#L81true assume { :end_inline_timeShift } true; 89#L308-3true [2018-11-18 08:52:51,672 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:52:51,672 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 08:52:51,673 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:52:51,674 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:52:51,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:51,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:52:51,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:52:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:52:51,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:52:51,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1075281431, now seen corresponding path program 1 times [2018-11-18 08:52:51,831 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:52:51,831 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:52:51,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:51,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:52:51,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:52:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:52:51,847 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:52:51,847 INFO L82 PathProgramCache]: Analyzing trace with hash 297244242, now seen corresponding path program 1 times [2018-11-18 08:52:51,847 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:52:51,847 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:52:51,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:51,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:52:51,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:52:51,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:52:51,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:52:51,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 08:52:52,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 08:52:52,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 08:52:52,055 INFO L87 Difference]: Start difference. First operand 203 states. Second operand 6 states. [2018-11-18 08:52:52,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:52:52,328 INFO L93 Difference]: Finished difference Result 657 states and 857 transitions. [2018-11-18 08:52:52,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 08:52:52,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 657 states and 857 transitions. [2018-11-18 08:52:52,343 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 432 [2018-11-18 08:52:52,351 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 657 states to 617 states and 817 transitions. [2018-11-18 08:52:52,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 617 [2018-11-18 08:52:52,353 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 617 [2018-11-18 08:52:52,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 617 states and 817 transitions. [2018-11-18 08:52:52,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:52:52,357 INFO L705 BuchiCegarLoop]: Abstraction has 617 states and 817 transitions. [2018-11-18 08:52:52,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states and 817 transitions. [2018-11-18 08:52:52,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 253. [2018-11-18 08:52:52,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2018-11-18 08:52:52,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 334 transitions. [2018-11-18 08:52:52,395 INFO L728 BuchiCegarLoop]: Abstraction has 253 states and 334 transitions. [2018-11-18 08:52:52,395 INFO L608 BuchiCegarLoop]: Abstraction has 253 states and 334 transitions. [2018-11-18 08:52:52,396 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 08:52:52,396 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 253 states and 334 transitions. [2018-11-18 08:52:52,398 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 177 [2018-11-18 08:52:52,398 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:52:52,398 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:52:52,399 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:52:52,399 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:52:52,399 INFO L794 eck$LassoCheckResult]: Stem: 1035#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 110];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 79];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 102];#memory_int := #memory_int[#t~string9.base,2 + #t~string9.offset := 102];#memory_int := #memory_int[#t~string9.base,3 + #t~string9.offset := 0];call #t~string11.base, #t~string11.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string11.base,#t~string11.offset := 44];#memory_int := #memory_int[#t~string11.base,1 + #t~string11.offset := 80];#memory_int := #memory_int[#t~string11.base,2 + #t~string11.offset := 117];#memory_int := #memory_int[#t~string11.base,3 + #t~string11.offset := 109];#memory_int := #memory_int[#t~string11.base,4 + #t~string11.offset := 112];#memory_int := #memory_int[#t~string11.base,5 + #t~string11.offset := 58];#memory_int := #memory_int[#t~string11.base,6 + #t~string11.offset := 0];call #t~string13.base, #t~string13.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string13.base,#t~string13.offset := 79];#memory_int := #memory_int[#t~string13.base,1 + #t~string13.offset := 110];#memory_int := #memory_int[#t~string13.base,2 + #t~string13.offset := 0];call #t~string15.base, #t~string15.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string15.base,#t~string15.offset := 79];#memory_int := #memory_int[#t~string15.base,1 + #t~string15.offset := 102];#memory_int := #memory_int[#t~string15.base,2 + #t~string15.offset := 102];#memory_int := #memory_int[#t~string15.base,3 + #t~string15.offset := 0];call #t~string17.base, #t~string17.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string17.base,#t~string17.offset := 41];#memory_int := #memory_int[#t~string17.base,1 + #t~string17.offset := 32];#memory_int := #memory_int[#t~string17.base,2 + #t~string17.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string19.base,#t~string19.offset := 10];#memory_int := #memory_int[#t~string19.base,1 + #t~string19.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(30);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(9);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(21);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(30);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(9);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(21);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(25);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(25);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(13);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 44];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 77];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 101];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 116];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 104];#memory_int := #memory_int[#t~string69.base,5 + #t~string69.offset := 58];#memory_int := #memory_int[#t~string69.base,6 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 67];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 82];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 73];#memory_int := #memory_int[#t~string71.base,3 + #t~string71.offset := 84];#memory_int := #memory_int[#t~string71.base,4 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 79];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 75];#memory_int := #memory_int[#t~string73.base,2 + #t~string73.offset := 0];call #t~string75.base, #t~string75.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string75.base,#t~string75.offset := 41];#memory_int := #memory_int[#t~string75.base,1 + #t~string75.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 882#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret64, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 883#L906 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 878#L899 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 879#L914 main_#t~ret64 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret64;havoc main_#t~ret64; 1007#L870 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 968#L843 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 965#L375 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 894#L308-3 [2018-11-18 08:52:52,400 INFO L796 eck$LassoCheckResult]: Loop: 894#L308-3 assume true; 1036#L308-1 assume !false; 970#L309 assume test_~splverifierCounter~0 < 4; 880#L310 test_~tmp~5 := test_#t~nondet22;havoc test_#t~nondet22; 881#L318 assume !(0 != test_~tmp~5); 885#L318-2 test_~tmp___0~2 := test_#t~nondet23;havoc test_#t~nondet23; 886#L328 assume !(0 != test_~tmp___0~2); 979#L328-2 test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 983#L338 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1061#L291 assume { :end_inline_startSystem } true; 1067#L346-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret26;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1008#L193 __utac_acc__Specification5_spec__2_#t~ret26 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret26;havoc __utac_acc__Specification5_spec__2_#t~ret26; 1009#L385 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 977#L64 assume !(0 != ~pumpRunning~0); 909#L64-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 910#L122 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 912#L96-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1029#L88-3 assume { :end_inline_processEnvironment__wrappee__base } true; 1023#L96-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 958#L122-1 assume { :end_inline_processEnvironment } true; 959#L71-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 928#L1003 __utac_acc__Specification5_spec__3_#t~ret27 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret27;havoc __utac_acc__Specification5_spec__3_#t~ret27; 929#L396 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 954#L396-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 893#L81 assume { :end_inline_timeShift } true; 894#L308-3 [2018-11-18 08:52:52,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:52:52,403 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 08:52:52,403 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:52:52,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:52:52,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:52,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:52:52,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:52:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:52:52,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:52:52,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1713021800, now seen corresponding path program 1 times [2018-11-18 08:52:52,450 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:52:52,450 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:52:52,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:52,451 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:52:52,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:52:52,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:52:52,467 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:52:52,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:52:52,467 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:52:52,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:52:52,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:52:52,468 INFO L87 Difference]: Start difference. First operand 253 states and 334 transitions. cyclomatic complexity: 84 Second operand 3 states. [2018-11-18 08:52:52,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:52:52,560 INFO L93 Difference]: Finished difference Result 321 states and 406 transitions. [2018-11-18 08:52:52,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:52:52,561 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 321 states and 406 transitions. [2018-11-18 08:52:52,563 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 229 [2018-11-18 08:52:52,565 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 321 states to 321 states and 406 transitions. [2018-11-18 08:52:52,565 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 321 [2018-11-18 08:52:52,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 321 [2018-11-18 08:52:52,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 321 states and 406 transitions. [2018-11-18 08:52:52,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:52:52,566 INFO L705 BuchiCegarLoop]: Abstraction has 321 states and 406 transitions. [2018-11-18 08:52:52,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states and 406 transitions. [2018-11-18 08:52:52,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2018-11-18 08:52:52,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2018-11-18 08:52:52,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 406 transitions. [2018-11-18 08:52:52,577 INFO L728 BuchiCegarLoop]: Abstraction has 321 states and 406 transitions. [2018-11-18 08:52:52,577 INFO L608 BuchiCegarLoop]: Abstraction has 321 states and 406 transitions. [2018-11-18 08:52:52,577 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 08:52:52,577 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 321 states and 406 transitions. [2018-11-18 08:52:52,579 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 229 [2018-11-18 08:52:52,579 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:52:52,579 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:52:52,579 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:52:52,580 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] [2018-11-18 08:52:52,580 INFO L794 eck$LassoCheckResult]: Stem: 1622#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 110];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 79];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 102];#memory_int := #memory_int[#t~string9.base,2 + #t~string9.offset := 102];#memory_int := #memory_int[#t~string9.base,3 + #t~string9.offset := 0];call #t~string11.base, #t~string11.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string11.base,#t~string11.offset := 44];#memory_int := #memory_int[#t~string11.base,1 + #t~string11.offset := 80];#memory_int := #memory_int[#t~string11.base,2 + #t~string11.offset := 117];#memory_int := #memory_int[#t~string11.base,3 + #t~string11.offset := 109];#memory_int := #memory_int[#t~string11.base,4 + #t~string11.offset := 112];#memory_int := #memory_int[#t~string11.base,5 + #t~string11.offset := 58];#memory_int := #memory_int[#t~string11.base,6 + #t~string11.offset := 0];call #t~string13.base, #t~string13.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string13.base,#t~string13.offset := 79];#memory_int := #memory_int[#t~string13.base,1 + #t~string13.offset := 110];#memory_int := #memory_int[#t~string13.base,2 + #t~string13.offset := 0];call #t~string15.base, #t~string15.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string15.base,#t~string15.offset := 79];#memory_int := #memory_int[#t~string15.base,1 + #t~string15.offset := 102];#memory_int := #memory_int[#t~string15.base,2 + #t~string15.offset := 102];#memory_int := #memory_int[#t~string15.base,3 + #t~string15.offset := 0];call #t~string17.base, #t~string17.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string17.base,#t~string17.offset := 41];#memory_int := #memory_int[#t~string17.base,1 + #t~string17.offset := 32];#memory_int := #memory_int[#t~string17.base,2 + #t~string17.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string19.base,#t~string19.offset := 10];#memory_int := #memory_int[#t~string19.base,1 + #t~string19.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(30);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(9);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(21);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(30);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(9);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(21);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(25);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(25);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(13);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 44];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 77];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 101];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 116];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 104];#memory_int := #memory_int[#t~string69.base,5 + #t~string69.offset := 58];#memory_int := #memory_int[#t~string69.base,6 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 67];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 82];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 73];#memory_int := #memory_int[#t~string71.base,3 + #t~string71.offset := 84];#memory_int := #memory_int[#t~string71.base,4 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 79];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 75];#memory_int := #memory_int[#t~string73.base,2 + #t~string73.offset := 0];call #t~string75.base, #t~string75.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string75.base,#t~string75.offset := 41];#memory_int := #memory_int[#t~string75.base,1 + #t~string75.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1462#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret64, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 1463#L906 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1458#L899 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 1459#L914 main_#t~ret64 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret64;havoc main_#t~ret64; 1593#L870 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 1550#L843 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1546#L375 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1474#L308-3 [2018-11-18 08:52:52,580 INFO L796 eck$LassoCheckResult]: Loop: 1474#L308-3 assume true; 1755#L308-1 assume !false; 1754#L309 assume test_~splverifierCounter~0 < 4; 1753#L310 test_~tmp~5 := test_#t~nondet22;havoc test_#t~nondet22; 1751#L318 assume !(0 != test_~tmp~5); 1749#L318-2 test_~tmp___0~2 := test_#t~nondet23;havoc test_#t~nondet23; 1747#L328 assume !(0 != test_~tmp___0~2); 1745#L328-2 test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 1744#L338 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1662#L291 assume { :end_inline_startSystem } true; 1675#L346-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret26;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1742#L193 __utac_acc__Specification5_spec__2_#t~ret26 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret26;havoc __utac_acc__Specification5_spec__2_#t~ret26; 1644#L385 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1560#L64 assume !(0 != ~pumpRunning~0); 1512#L64-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1490#L122 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1491#L96-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret20, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1526#L1011-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1527#L1016-1 isHighWaterLevel_#t~ret20 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret20;havoc isHighWaterLevel_#t~ret20; 1576#L242-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 1601#L242-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1597#L248-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 1523#L100-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1525#L88-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1609#L96-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1539#L122-1 assume { :end_inline_processEnvironment } true; 1540#L71-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 1757#L1003 __utac_acc__Specification5_spec__3_#t~ret27 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret27;havoc __utac_acc__Specification5_spec__3_#t~ret27; 1642#L396 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 1535#L396-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1473#L81 assume { :end_inline_timeShift } true; 1474#L308-3 [2018-11-18 08:52:52,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:52:52,581 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 08:52:52,581 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:52:52,581 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:52:52,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:52,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:52:52,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:52:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:52:52,615 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:52:52,616 INFO L82 PathProgramCache]: Analyzing trace with hash -765119792, now seen corresponding path program 1 times [2018-11-18 08:52:52,616 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:52:52,616 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:52:52,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:52,617 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:52:52,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:52:52,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:52:52,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:52:52,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 08:52:52,658 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:52:52,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 08:52:52,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 08:52:52,658 INFO L87 Difference]: Start difference. First operand 321 states and 406 transitions. cyclomatic complexity: 88 Second operand 5 states. [2018-11-18 08:52:52,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:52:52,779 INFO L93 Difference]: Finished difference Result 898 states and 1115 transitions. [2018-11-18 08:52:52,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 08:52:52,779 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 898 states and 1115 transitions. [2018-11-18 08:52:52,783 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 595 [2018-11-18 08:52:52,786 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 898 states to 898 states and 1115 transitions. [2018-11-18 08:52:52,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 898 [2018-11-18 08:52:52,786 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 898 [2018-11-18 08:52:52,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 898 states and 1115 transitions. [2018-11-18 08:52:52,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:52:52,787 INFO L705 BuchiCegarLoop]: Abstraction has 898 states and 1115 transitions. [2018-11-18 08:52:52,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states and 1115 transitions. [2018-11-18 08:52:52,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 631. [2018-11-18 08:52:52,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2018-11-18 08:52:52,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 783 transitions. [2018-11-18 08:52:52,802 INFO L728 BuchiCegarLoop]: Abstraction has 631 states and 783 transitions. [2018-11-18 08:52:52,802 INFO L608 BuchiCegarLoop]: Abstraction has 631 states and 783 transitions. [2018-11-18 08:52:52,802 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 08:52:52,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 631 states and 783 transitions. [2018-11-18 08:52:52,805 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 455 [2018-11-18 08:52:52,805 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:52:52,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:52:52,806 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:52:52,806 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, 1] [2018-11-18 08:52:52,807 INFO L794 eck$LassoCheckResult]: Stem: 2865#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 110];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 79];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 102];#memory_int := #memory_int[#t~string9.base,2 + #t~string9.offset := 102];#memory_int := #memory_int[#t~string9.base,3 + #t~string9.offset := 0];call #t~string11.base, #t~string11.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string11.base,#t~string11.offset := 44];#memory_int := #memory_int[#t~string11.base,1 + #t~string11.offset := 80];#memory_int := #memory_int[#t~string11.base,2 + #t~string11.offset := 117];#memory_int := #memory_int[#t~string11.base,3 + #t~string11.offset := 109];#memory_int := #memory_int[#t~string11.base,4 + #t~string11.offset := 112];#memory_int := #memory_int[#t~string11.base,5 + #t~string11.offset := 58];#memory_int := #memory_int[#t~string11.base,6 + #t~string11.offset := 0];call #t~string13.base, #t~string13.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string13.base,#t~string13.offset := 79];#memory_int := #memory_int[#t~string13.base,1 + #t~string13.offset := 110];#memory_int := #memory_int[#t~string13.base,2 + #t~string13.offset := 0];call #t~string15.base, #t~string15.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string15.base,#t~string15.offset := 79];#memory_int := #memory_int[#t~string15.base,1 + #t~string15.offset := 102];#memory_int := #memory_int[#t~string15.base,2 + #t~string15.offset := 102];#memory_int := #memory_int[#t~string15.base,3 + #t~string15.offset := 0];call #t~string17.base, #t~string17.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string17.base,#t~string17.offset := 41];#memory_int := #memory_int[#t~string17.base,1 + #t~string17.offset := 32];#memory_int := #memory_int[#t~string17.base,2 + #t~string17.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string19.base,#t~string19.offset := 10];#memory_int := #memory_int[#t~string19.base,1 + #t~string19.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(30);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(9);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(21);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(30);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(9);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(21);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(25);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(25);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(13);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 44];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 77];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 101];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 116];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 104];#memory_int := #memory_int[#t~string69.base,5 + #t~string69.offset := 58];#memory_int := #memory_int[#t~string69.base,6 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 67];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 82];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 73];#memory_int := #memory_int[#t~string71.base,3 + #t~string71.offset := 84];#memory_int := #memory_int[#t~string71.base,4 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 79];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 75];#memory_int := #memory_int[#t~string73.base,2 + #t~string73.offset := 0];call #t~string75.base, #t~string75.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string75.base,#t~string75.offset := 41];#memory_int := #memory_int[#t~string75.base,1 + #t~string75.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 2697#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret64, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 2698#L906 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2693#L899 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 2694#L914 main_#t~ret64 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret64;havoc main_#t~ret64; 2837#L870 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 2787#L843 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2784#L375 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2709#L308-3 [2018-11-18 08:52:52,807 INFO L796 eck$LassoCheckResult]: Loop: 2709#L308-3 assume true; 2864#L308-1 assume !false; 2790#L309 assume test_~splverifierCounter~0 < 4; 2695#L310 test_~tmp~5 := test_#t~nondet22;havoc test_#t~nondet22; 2696#L318 assume !(0 != test_~tmp~5); 2700#L318-2 test_~tmp___0~2 := test_#t~nondet23;havoc test_#t~nondet23; 2701#L328 assume !(0 != test_~tmp___0~2); 2800#L328-2 test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 2805#L338 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2903#L291 assume { :end_inline_startSystem } true; 2914#L346-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret26;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2833#L193 __utac_acc__Specification5_spec__2_#t~ret26 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret26;havoc __utac_acc__Specification5_spec__2_#t~ret26; 2834#L385 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2797#L64 assume !(0 != ~pumpRunning~0); 2798#L64-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 2727#L122 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 2728#L96-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret20, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 2761#L1011-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 2762#L1016-1 isHighWaterLevel_#t~ret20 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret20;havoc isHighWaterLevel_#t~ret20; 2816#L242-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 2843#L242-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 2839#L248-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 2758#L100-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 2760#L88-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2868#L96-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2778#L122-1 assume { :end_inline_processEnvironment } true; 2779#L71-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 2743#L1003 __utac_acc__Specification5_spec__3_#t~ret27 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret27;havoc __utac_acc__Specification5_spec__3_#t~ret27; 2744#L396 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2831#L193-1 __utac_acc__Specification5_spec__3_#t~ret28 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret28;havoc __utac_acc__Specification5_spec__3_#t~ret28; 2771#L400 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 2772#L396-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2708#L81 assume { :end_inline_timeShift } true; 2709#L308-3 [2018-11-18 08:52:52,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:52:52,807 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2018-11-18 08:52:52,807 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:52:52,808 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:52:52,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:52,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:52:52,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:52:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:52:52,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:52:52,840 INFO L82 PathProgramCache]: Analyzing trace with hash -859807765, now seen corresponding path program 1 times [2018-11-18 08:52:52,840 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:52:52,840 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:52:52,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:52,841 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:52:52,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:52,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:52:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:52:52,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:52:52,852 INFO L82 PathProgramCache]: Analyzing trace with hash 453606946, now seen corresponding path program 1 times [2018-11-18 08:52:52,852 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:52:52,852 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:52:52,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:52,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:52:52,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:52:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:52:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:52:53,014 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2018-11-18 08:54:11,134 WARN L180 SmtUtils]: Spent 1.30 m on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 08:54:55,141 WARN L180 SmtUtils]: Spent 44.00 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 08:54:55,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:54:55 BoogieIcfgContainer [2018-11-18 08:54:55,209 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 08:54:55,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:54:55,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:54:55,210 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:54:55,211 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:52:51" (3/4) ... [2018-11-18 08:54:55,213 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 08:54:55,261 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8989fea1-4629-411c-a6d6-be333c05d3d7/bin-2019/uautomizer/witness.graphml [2018-11-18 08:54:55,261 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:54:55,262 INFO L168 Benchmark]: Toolchain (without parser) took 124853.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 956.6 MB in the beginning and 847.3 MB in the end (delta: 109.3 MB). Peak memory consumption was 260.8 MB. Max. memory is 11.5 GB. [2018-11-18 08:54:55,263 INFO L168 Benchmark]: CDTParser took 0.15 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 08:54:55,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -143.3 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-11-18 08:54:55,263 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.35 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 08:54:55,264 INFO L168 Benchmark]: Boogie Preprocessor took 30.76 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 08:54:55,264 INFO L168 Benchmark]: RCFGBuilder took 681.15 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: 74.5 MB). Peak memory consumption was 74.5 MB. Max. memory is 11.5 GB. [2018-11-18 08:54:55,264 INFO L168 Benchmark]: BuchiAutomizer took 123639.13 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 40.4 MB). Free memory was 1.0 GB in the beginning and 847.3 MB in the end (delta: 172.7 MB). Peak memory consumption was 220.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:54:55,264 INFO L168 Benchmark]: Witness Printer took 51.67 ms. Allocated memory is still 1.2 GB. Free memory is still 847.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:54:55,266 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 396.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -143.3 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.35 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. * Boogie Preprocessor took 30.76 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. * RCFGBuilder took 681.15 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: 74.5 MB). Peak memory consumption was 74.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 123639.13 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 40.4 MB). Free memory was 1.0 GB in the beginning and 847.3 MB in the end (delta: 172.7 MB). Peak memory consumption was 220.7 MB. Max. memory is 11.5 GB. * Witness Printer took 51.67 ms. Allocated memory is still 1.2 GB. Free memory is still 847.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 631 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 123.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 122.9s. Construction of modules took 0.3s. 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, 631 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 631 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 906 SDtfs, 2275 SDslu, 2553 SDs, 0 SdLazy, 187 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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: 308]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {retValue_acc=1, "Off"=18, NULL=0, "i > 0 && i <= this->argsCount"=0, "CRIT"=38, "On"=14, "__utac__get_this_argtype"=0, "libacc.c"=0, retValue_acc=0, ",Pump:"=16, "i > 0 && i <= this->argsCount"=29, methaneLevelCritical=0, tmp=1, tmp___0=0, ",Meth:"=0, tmp=0, retValue_acc=0, "Env(Water:%i"=0, tmp___1=0, tmp=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, "i > 0 && i <= this->argsCount"=26, tmp=1, \result=0, ") "=19, NULL=0, systemActive=1, waterLevel=1, ",Meth:"=37, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e45efbf=0, "__utac__get_this_argtype"=31, "__utac__get_this_arg"=0, \result=0, "i > 0 && i <= this->argsCount"=22, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=34, "__utac__get_this_argtype"=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, \result=1, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b9850da=0, "__utac__get_this_arg"=24, "libacc.c"=8, \result=0, "__utac__get_this_arg"=28, tmp___0=0, "\n"=0, "Off"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2eddd224=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b453ced=178, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c1bf660=0, "libacc.c"=0, ") "=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79a20aa0=0, \result=1, "libacc.c"=23, "Env(Water:%i"=36, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3badf1bb=0, "__utac__get_this_argtype"=35, "CRIT"=0, tmp=1, ")"=40, "OK"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72cef6a9=0, "Pump(System:"=12, retValue_acc=1, tmp___2=178, ")"=0, tmp___0=0, splverifierCounter=0, "i > 0 && i <= this->argsCount"=0, "Off"=0, "On"=0, "Pump(System:"=0, "OK"=39, "Off"=15, "i > 0 && i <= this->argsCount"=33, tmp=0, head=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11132a1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44118306=0, "\n"=20, "On"=0, ",Pump:"=0, "On"=17, "libacc.c"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51417c32=0, "libacc.c"=27} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 308]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L202] FCALL "Pump(System:" [L206] FCALL "On" [L210] FCALL "Off" [L214] FCALL ",Pump:" [L218] FCALL "On" [L222] FCALL "Off" [L226] FCALL ") " [L228] FCALL "\n" [L715] FCALL "i > 0 && i <= this->argsCount" [L715] FCALL "libacc.c" [L716] FCALL "__utac__get_this_arg" [L722] FCALL "i > 0 && i <= this->argsCount" [L722] FCALL "libacc.c" [L723] FCALL "__utac__get_this_arg" [L761] FCALL "i > 0 && i <= this->argsCount" [L761] FCALL "libacc.c" [L762] FCALL "__utac__get_this_argtype" [L768] FCALL "i > 0 && i <= this->argsCount" [L768] FCALL "libacc.c" [L769] FCALL "__utac__get_this_argtype" [L980] FCALL "Env(Water:%i" [L981] FCALL ",Meth:" [L985] FCALL "CRIT" [L989] FCALL "OK" [L993] FCALL ")" [L52] int pumpRunning = 0; [L53] int systemActive = 1; [L369] int switchedOnBeforeTS ; [L784] int cleanupTimeShifts = 4; [L928] int waterLevel = 1; [L929] int methaneLevelCritical = 0; [L587] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L861] int retValue_acc ; [L862] int tmp ; [L866] FCALL select_helpers() [L867] FCALL select_features() [L868] CALL, EXPR valid_product() [L910] int retValue_acc ; [L913] retValue_acc = 1 [L914] RET return (retValue_acc); [L868] EXPR valid_product() [L868] tmp = valid_product() [L870] COND TRUE \read(tmp) [L872] FCALL setup() [L873] CALL runTest() [L851] CALL __utac_acc__Specification5_spec__1() [L374] RET switchedOnBeforeTS = 0 [L851] __utac_acc__Specification5_spec__1() [L852] CALL test() [L299] int splverifierCounter ; [L300] int tmp ; [L301] int tmp___0 ; [L302] int tmp___1 ; [L303] int tmp___2 ; [L306] splverifierCounter = 0 Loop: [L308] COND TRUE 1 [L310] COND TRUE splverifierCounter < 4 [L316] tmp = __VERIFIER_nondet_int() [L318] COND FALSE !(\read(tmp)) [L326] tmp___0 = __VERIFIER_nondet_int() [L328] COND FALSE !(\read(tmp___0)) [L336] tmp___2 = __VERIFIER_nondet_int() [L338] COND TRUE \read(tmp___2) [L340] CALL startSystem() [L290] RET systemActive = 1 [L340] startSystem() [L355] CALL timeShift() [L62] CALL __utac_acc__Specification5_spec__2() [L383] CALL, EXPR isPumpRunning() [L189] int retValue_acc ; [L192] retValue_acc = pumpRunning [L193] RET return (retValue_acc); [L383] EXPR isPumpRunning() [L383] RET switchedOnBeforeTS = isPumpRunning() [L62] __utac_acc__Specification5_spec__2() [L64] COND FALSE !(\read(pumpRunning)) [L71] COND TRUE \read(systemActive) [L73] CALL processEnvironment() [L119] int tmp ; [L122] COND FALSE !(\read(pumpRunning)) [L137] CALL processEnvironment__wrappee__highWaterSensor() [L93] int tmp ; [L96] COND TRUE ! pumpRunning [L98] CALL, EXPR isHighWaterLevel() [L234] int retValue_acc ; [L235] int tmp ; [L236] int tmp___0 ; [L240] CALL, EXPR isHighWaterSensorDry() [L1008] int retValue_acc ; [L1011] COND TRUE waterLevel < 2 [L1012] retValue_acc = 1 [L1013] RET return (retValue_acc); [L240] EXPR isHighWaterSensorDry() [L240] tmp = isHighWaterSensorDry() [L242] COND TRUE \read(tmp) [L243] tmp___0 = 0 [L247] retValue_acc = tmp___0 [L248] RET return (retValue_acc); [L98] EXPR isHighWaterLevel() [L98] tmp = isHighWaterLevel() [L100] COND FALSE !(\read(tmp)) [L106] RET, FCALL processEnvironment__wrappee__base() [L137] RET processEnvironment__wrappee__highWaterSensor() [L73] processEnvironment() [L79] CALL __utac_acc__Specification5_spec__3() [L389] int tmp ; [L390] int tmp___0 ; [L394] CALL, EXPR getWaterLevel() [L999] int retValue_acc ; [L1002] retValue_acc = waterLevel [L1003] RET return (retValue_acc); [L394] EXPR getWaterLevel() [L394] tmp = getWaterLevel() [L396] COND TRUE tmp != 2 [L398] CALL, EXPR isPumpRunning() [L189] int retValue_acc ; [L192] retValue_acc = pumpRunning [L193] RET return (retValue_acc); [L398] EXPR isPumpRunning() [L398] tmp___0 = isPumpRunning() [L400] COND FALSE, RET !(\read(tmp___0)) [L79] RET __utac_acc__Specification5_spec__3() [L355] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...