./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product48_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ae7e6d11-5e33-4532-8268-5d92b1472e63/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ae7e6d11-5e33-4532-8268-5d92b1472e63/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ae7e6d11-5e33-4532-8268-5d92b1472e63/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ae7e6d11-5e33-4532-8268-5d92b1472e63/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product48_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ae7e6d11-5e33-4532-8268-5d92b1472e63/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ae7e6d11-5e33-4532-8268-5d92b1472e63/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 5f57b6f2bb2bb4fa43dac897ff23a28c21886d7b ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:37:48,710 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:37:48,712 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:37:48,721 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:37:48,721 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:37:48,722 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:37:48,723 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:37:48,725 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:37:48,726 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:37:48,727 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:37:48,728 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:37:48,728 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:37:48,729 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:37:48,729 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:37:48,730 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:37:48,731 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:37:48,732 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:37:48,733 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:37:48,735 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:37:48,736 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:37:48,737 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:37:48,738 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:37:48,740 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:37:48,740 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:37:48,740 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:37:48,741 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:37:48,742 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:37:48,743 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:37:48,743 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:37:48,744 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:37:48,745 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:37:48,745 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:37:48,745 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:37:48,746 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:37:48,746 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:37:48,747 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:37:48,747 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ae7e6d11-5e33-4532-8268-5d92b1472e63/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 11:37:48,760 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:37:48,761 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:37:48,762 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:37:48,762 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:37:48,762 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:37:48,762 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 11:37:48,762 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 11:37:48,763 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 11:37:48,763 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 11:37:48,763 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 11:37:48,763 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 11:37:48,763 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:37:48,763 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:37:48,764 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 11:37:48,764 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:37:48,764 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:37:48,764 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:37:48,764 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 11:37:48,764 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 11:37:48,764 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 11:37:48,765 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:37:48,765 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:37:48,765 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 11:37:48,765 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:37:48,765 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 11:37:48,765 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:37:48,766 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:37:48,766 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 11:37:48,766 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:37:48,766 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 11:37:48,766 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 11:37:48,767 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 11:37:48,767 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_ae7e6d11-5e33-4532-8268-5d92b1472e63/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 -> 5f57b6f2bb2bb4fa43dac897ff23a28c21886d7b [2018-11-18 11:37:48,797 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:37:48,808 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:37:48,812 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:37:48,813 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:37:48,813 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:37:48,814 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ae7e6d11-5e33-4532-8268-5d92b1472e63/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product48_false-unreach-call_false-termination.cil.c [2018-11-18 11:37:48,870 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ae7e6d11-5e33-4532-8268-5d92b1472e63/bin-2019/uautomizer/data/91c05f976/a9c922c7ceb64ee9988d6cfdce190892/FLAG2d35fb950 [2018-11-18 11:37:49,277 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:37:49,277 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ae7e6d11-5e33-4532-8268-5d92b1472e63/sv-benchmarks/c/product-lines/minepump_spec4_product48_false-unreach-call_false-termination.cil.c [2018-11-18 11:37:49,286 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ae7e6d11-5e33-4532-8268-5d92b1472e63/bin-2019/uautomizer/data/91c05f976/a9c922c7ceb64ee9988d6cfdce190892/FLAG2d35fb950 [2018-11-18 11:37:49,301 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ae7e6d11-5e33-4532-8268-5d92b1472e63/bin-2019/uautomizer/data/91c05f976/a9c922c7ceb64ee9988d6cfdce190892 [2018-11-18 11:37:49,304 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:37:49,305 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:37:49,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:37:49,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:37:49,310 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:37:49,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:37:49" (1/1) ... [2018-11-18 11:37:49,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:37:49, skipping insertion in model container [2018-11-18 11:37:49,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:37:49" (1/1) ... [2018-11-18 11:37:49,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:37:49,362 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:37:49,605 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:37:49,615 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:37:49,734 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:37:49,754 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:37:49,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:37:49 WrapperNode [2018-11-18 11:37:49,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:37:49,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:37:49,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:37:49,755 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:37:49,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:37:49" (1/1) ... [2018-11-18 11:37:49,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:37:49" (1/1) ... [2018-11-18 11:37:49,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:37:49,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:37:49,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:37:49,804 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:37:49,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:37:49" (1/1) ... [2018-11-18 11:37:49,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:37:49" (1/1) ... [2018-11-18 11:37:49,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:37:49" (1/1) ... [2018-11-18 11:37:49,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:37:49" (1/1) ... [2018-11-18 11:37:49,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:37:49" (1/1) ... [2018-11-18 11:37:49,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:37:49" (1/1) ... [2018-11-18 11:37:49,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:37:49" (1/1) ... [2018-11-18 11:37:49,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:37:49,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:37:49,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:37:49,835 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:37:49,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:37:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae7e6d11-5e33-4532-8268-5d92b1472e63/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:37:49,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:37:49,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:37:49,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:37:50,605 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:37:50,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:37:50 BoogieIcfgContainer [2018-11-18 11:37:50,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:37:50,607 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 11:37:50,607 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 11:37:50,610 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 11:37:50,611 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:37:50,611 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 11:37:49" (1/3) ... [2018-11-18 11:37:50,612 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e0b7102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:37:50, skipping insertion in model container [2018-11-18 11:37:50,612 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:37:50,612 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:37:49" (2/3) ... [2018-11-18 11:37:50,612 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e0b7102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:37:50, skipping insertion in model container [2018-11-18 11:37:50,612 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:37:50,612 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:37:50" (3/3) ... [2018-11-18 11:37:50,614 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product48_false-unreach-call_false-termination.cil.c [2018-11-18 11:37:50,655 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:37:50,656 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 11:37:50,656 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 11:37:50,656 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 11:37:50,656 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:37:50,656 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:37:50,656 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 11:37:50,656 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:37:50,657 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 11:37:50,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 187 states. [2018-11-18 11:37:50,700 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2018-11-18 11:37:50,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:37:50,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:37:50,708 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:37:50,709 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:37:50,709 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 11:37:50,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 187 states. [2018-11-18 11:37:50,716 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2018-11-18 11:37:50,717 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:37:50,717 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:37:50,718 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:37:50,718 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:37:50,723 INFO L794 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(30);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(9);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(21);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(25);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 110];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,3 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 44];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 80];#memory_int := #memory_int[#t~string49.base,2 + #t~string49.offset := 117];#memory_int := #memory_int[#t~string49.base,3 + #t~string49.offset := 109];#memory_int := #memory_int[#t~string49.base,4 + #t~string49.offset := 112];#memory_int := #memory_int[#t~string49.base,5 + #t~string49.offset := 58];#memory_int := #memory_int[#t~string49.base,6 + #t~string49.offset := 0];call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 41];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 32];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 10];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(13);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 44];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 77];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 101];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 116];#memory_int := #memory_int[#t~string62.base,4 + #t~string62.offset := 104];#memory_int := #memory_int[#t~string62.base,5 + #t~string62.offset := 58];#memory_int := #memory_int[#t~string62.base,6 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 67];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 82];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 73];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 84];#memory_int := #memory_int[#t~string64.base,4 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 79];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 75];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 41];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 18#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 46#L959true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 138#L952true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 51#L967true main_#t~ret37 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 119#L534true assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 76#L507true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 121#L878-3true [2018-11-18 11:37:50,723 INFO L796 eck$LassoCheckResult]: Loop: 121#L878-3true assume true; 118#L878-1true assume !false; 55#L879true assume test_~splverifierCounter~0 < 4; 187#L880true test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 6#L888true assume !(0 != test_~tmp~9); 13#L888-2true test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 59#L898true assume !(0 != test_~tmp___0~2); 63#L898-2true test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 145#L908true assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet72;havoc test_#t~nondet72; 153#L916true assume !(0 != test_~tmp___1~0); 159#L916-2true assume { :begin_inline_timeShift } true; 19#L563true assume !(0 != ~pumpRunning~0); 20#L563-2true assume !(0 != ~systemActive~0); 83#L570-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret0, __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 30#L849true __utac_acc__Specification4_spec__1_#t~ret0 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret0;havoc __utac_acc__Specification4_spec__1_#t~ret0; 16#L51true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 12#L51-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 169#L580true assume { :end_inline_timeShift } true; 121#L878-3true [2018-11-18 11:37:50,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:37:50,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 11:37:50,729 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:37:50,730 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:37:50,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:50,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:37:50,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:37:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:37:50,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:37:50,907 INFO L82 PathProgramCache]: Analyzing trace with hash 522126977, now seen corresponding path program 1 times [2018-11-18 11:37:50,908 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:37:50,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:37:50,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:50,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:37:50,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:37:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:37:50,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:37:50,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1704768325, now seen corresponding path program 1 times [2018-11-18 11:37:50,925 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:37:50,926 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:37:50,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:50,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:37:50,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:51,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:37:51,067 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:37:51,068 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:37:51,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:37:51,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:37:51,160 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 6 states. [2018-11-18 11:37:51,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:37:51,395 INFO L93 Difference]: Finished difference Result 602 states and 781 transitions. [2018-11-18 11:37:51,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:37:51,398 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 602 states and 781 transitions. [2018-11-18 11:37:51,407 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 396 [2018-11-18 11:37:51,418 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 602 states to 562 states and 741 transitions. [2018-11-18 11:37:51,420 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 562 [2018-11-18 11:37:51,421 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 562 [2018-11-18 11:37:51,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 562 states and 741 transitions. [2018-11-18 11:37:51,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:37:51,425 INFO L705 BuchiCegarLoop]: Abstraction has 562 states and 741 transitions. [2018-11-18 11:37:51,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states and 741 transitions. [2018-11-18 11:37:51,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 228. [2018-11-18 11:37:51,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2018-11-18 11:37:51,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 300 transitions. [2018-11-18 11:37:51,467 INFO L728 BuchiCegarLoop]: Abstraction has 228 states and 300 transitions. [2018-11-18 11:37:51,467 INFO L608 BuchiCegarLoop]: Abstraction has 228 states and 300 transitions. [2018-11-18 11:37:51,467 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 11:37:51,467 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states and 300 transitions. [2018-11-18 11:37:51,469 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 161 [2018-11-18 11:37:51,473 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:37:51,473 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:37:51,474 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:37:51,474 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:37:51,475 INFO L794 eck$LassoCheckResult]: Stem: 951#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(30);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(9);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(21);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(25);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 110];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,3 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 44];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 80];#memory_int := #memory_int[#t~string49.base,2 + #t~string49.offset := 117];#memory_int := #memory_int[#t~string49.base,3 + #t~string49.offset := 109];#memory_int := #memory_int[#t~string49.base,4 + #t~string49.offset := 112];#memory_int := #memory_int[#t~string49.base,5 + #t~string49.offset := 58];#memory_int := #memory_int[#t~string49.base,6 + #t~string49.offset := 0];call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 41];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 32];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 10];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(13);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 44];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 77];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 101];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 116];#memory_int := #memory_int[#t~string62.base,4 + #t~string62.offset := 104];#memory_int := #memory_int[#t~string62.base,5 + #t~string62.offset := 58];#memory_int := #memory_int[#t~string62.base,6 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 67];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 82];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 73];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 84];#memory_int := #memory_int[#t~string64.base,4 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 79];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 75];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 41];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 840#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 841#L959 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 874#L952 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 880#L967 main_#t~ret37 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 881#L534 assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 902#L507 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 903#L878-3 [2018-11-18 11:37:51,475 INFO L796 eck$LassoCheckResult]: Loop: 903#L878-3 assume true; 946#L878-1 assume !false; 886#L879 assume test_~splverifierCounter~0 < 4; 887#L880 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 814#L888 assume !(0 != test_~tmp~9); 816#L888-2 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 832#L898 assume !(0 != test_~tmp___0~2); 891#L898-2 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 894#L908 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 962#L770 assume { :end_inline_startSystem } true; 969#L916-2 assume { :begin_inline_timeShift } true; 842#L563 assume !(0 != ~pumpRunning~0); 843#L563-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 817#L621 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret38, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 818#L595-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 878#L587-3 assume { :end_inline_processEnvironment__wrappee__base } true; 876#L595-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 828#L621-1 assume { :end_inline_processEnvironment } true; 829#L570-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret0, __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 852#L849 __utac_acc__Specification4_spec__1_#t~ret0 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret0;havoc __utac_acc__Specification4_spec__1_#t~ret0; 836#L51 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 830#L51-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 831#L580 assume { :end_inline_timeShift } true; 903#L878-3 [2018-11-18 11:37:51,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:37:51,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 11:37:51,476 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:37:51,476 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:37:51,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:51,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:37:51,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:37:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:37:51,525 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:37:51,525 INFO L82 PathProgramCache]: Analyzing trace with hash 768751150, now seen corresponding path program 1 times [2018-11-18 11:37:51,525 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:37:51,525 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:37:51,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:51,528 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:37:51,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:51,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:37:51,546 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:37:51,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:37:51,547 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 11:37:51,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:37:51,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:37:51,547 INFO L87 Difference]: Start difference. First operand 228 states and 300 transitions. cyclomatic complexity: 75 Second operand 3 states. [2018-11-18 11:37:51,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:37:51,627 INFO L93 Difference]: Finished difference Result 287 states and 360 transitions. [2018-11-18 11:37:51,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:37:51,628 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 287 states and 360 transitions. [2018-11-18 11:37:51,631 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 207 [2018-11-18 11:37:51,633 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 287 states to 287 states and 360 transitions. [2018-11-18 11:37:51,633 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 287 [2018-11-18 11:37:51,634 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 287 [2018-11-18 11:37:51,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 287 states and 360 transitions. [2018-11-18 11:37:51,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:37:51,635 INFO L705 BuchiCegarLoop]: Abstraction has 287 states and 360 transitions. [2018-11-18 11:37:51,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states and 360 transitions. [2018-11-18 11:37:51,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2018-11-18 11:37:51,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2018-11-18 11:37:51,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 360 transitions. [2018-11-18 11:37:51,647 INFO L728 BuchiCegarLoop]: Abstraction has 287 states and 360 transitions. [2018-11-18 11:37:51,647 INFO L608 BuchiCegarLoop]: Abstraction has 287 states and 360 transitions. [2018-11-18 11:37:51,647 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 11:37:51,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 287 states and 360 transitions. [2018-11-18 11:37:51,649 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 207 [2018-11-18 11:37:51,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:37:51,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:37:51,651 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:37:51,651 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:37:51,651 INFO L794 eck$LassoCheckResult]: Stem: 1482#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(30);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(9);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(21);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(25);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 110];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,3 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 44];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 80];#memory_int := #memory_int[#t~string49.base,2 + #t~string49.offset := 117];#memory_int := #memory_int[#t~string49.base,3 + #t~string49.offset := 109];#memory_int := #memory_int[#t~string49.base,4 + #t~string49.offset := 112];#memory_int := #memory_int[#t~string49.base,5 + #t~string49.offset := 58];#memory_int := #memory_int[#t~string49.base,6 + #t~string49.offset := 0];call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 41];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 32];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 10];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(13);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 44];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 77];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 101];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 116];#memory_int := #memory_int[#t~string62.base,4 + #t~string62.offset := 104];#memory_int := #memory_int[#t~string62.base,5 + #t~string62.offset := 58];#memory_int := #memory_int[#t~string62.base,6 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 67];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 82];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 73];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 84];#memory_int := #memory_int[#t~string64.base,4 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 79];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 75];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 41];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1359#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 1360#L959 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1397#L952 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1402#L967 main_#t~ret37 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 1403#L534 assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 1427#L507 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1428#L878-3 [2018-11-18 11:37:51,651 INFO L796 eck$LassoCheckResult]: Loop: 1428#L878-3 assume true; 1590#L878-1 assume !false; 1588#L879 assume test_~splverifierCounter~0 < 4; 1587#L880 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 1585#L888 assume !(0 != test_~tmp~9); 1583#L888-2 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 1582#L898 assume !(0 != test_~tmp___0~2); 1581#L898-2 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 1580#L908 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1495#L770 assume { :end_inline_startSystem } true; 1519#L916-2 assume { :begin_inline_timeShift } true; 1578#L563 assume !(0 != ~pumpRunning~0); 1525#L563-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1338#L621 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret38, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 1339#L595-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1383#L857-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~9 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1384#L862-1 isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; 1424#L740-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1499#L740-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1453#L746-1 processEnvironment__wrappee__methaneQuery_#t~ret38 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret38;havoc processEnvironment__wrappee__methaneQuery_#t~ret38; 1454#L599-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 1398#L587-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1399#L595-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1347#L621-1 assume { :end_inline_processEnvironment } true; 1348#L570-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret0, __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 1596#L849 __utac_acc__Specification4_spec__1_#t~ret0 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret0;havoc __utac_acc__Specification4_spec__1_#t~ret0; 1593#L51 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 1592#L51-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1591#L580 assume { :end_inline_timeShift } true; 1428#L878-3 [2018-11-18 11:37:51,652 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:37:51,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 11:37:51,652 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:37:51,652 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:37:51,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:51,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:37:51,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:37:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:37:51,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:37:51,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1081590332, now seen corresponding path program 1 times [2018-11-18 11:37:51,692 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:37:51,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:37:51,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:51,693 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:37:51,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:51,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:37:51,728 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:37:51,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 11:37:51,729 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 11:37:51,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:37:51,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:37:51,729 INFO L87 Difference]: Start difference. First operand 287 states and 360 transitions. cyclomatic complexity: 76 Second operand 4 states. [2018-11-18 11:37:51,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:37:51,819 INFO L93 Difference]: Finished difference Result 823 states and 1018 transitions. [2018-11-18 11:37:51,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:37:51,820 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 823 states and 1018 transitions. [2018-11-18 11:37:51,824 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 605 [2018-11-18 11:37:51,827 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 823 states to 823 states and 1018 transitions. [2018-11-18 11:37:51,827 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 823 [2018-11-18 11:37:51,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 823 [2018-11-18 11:37:51,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 823 states and 1018 transitions. [2018-11-18 11:37:51,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:37:51,829 INFO L705 BuchiCegarLoop]: Abstraction has 823 states and 1018 transitions. [2018-11-18 11:37:51,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states and 1018 transitions. [2018-11-18 11:37:51,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 299. [2018-11-18 11:37:51,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2018-11-18 11:37:51,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 372 transitions. [2018-11-18 11:37:51,842 INFO L728 BuchiCegarLoop]: Abstraction has 299 states and 372 transitions. [2018-11-18 11:37:51,842 INFO L608 BuchiCegarLoop]: Abstraction has 299 states and 372 transitions. [2018-11-18 11:37:51,842 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 11:37:51,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 299 states and 372 transitions. [2018-11-18 11:37:51,844 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 215 [2018-11-18 11:37:51,845 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:37:51,845 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:37:51,845 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:37:51,846 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:37:51,846 INFO L794 eck$LassoCheckResult]: Stem: 2604#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(30);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(9);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(21);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(25);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 110];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,3 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 44];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 80];#memory_int := #memory_int[#t~string49.base,2 + #t~string49.offset := 117];#memory_int := #memory_int[#t~string49.base,3 + #t~string49.offset := 109];#memory_int := #memory_int[#t~string49.base,4 + #t~string49.offset := 112];#memory_int := #memory_int[#t~string49.base,5 + #t~string49.offset := 58];#memory_int := #memory_int[#t~string49.base,6 + #t~string49.offset := 0];call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 41];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 32];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 10];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(13);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 44];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 77];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 101];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 116];#memory_int := #memory_int[#t~string62.base,4 + #t~string62.offset := 104];#memory_int := #memory_int[#t~string62.base,5 + #t~string62.offset := 58];#memory_int := #memory_int[#t~string62.base,6 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 67];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 82];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 73];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 84];#memory_int := #memory_int[#t~string64.base,4 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 79];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 75];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 41];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 2479#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 2480#L959 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2521#L952 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 2528#L967 main_#t~ret37 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 2529#L534 assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 2551#L507 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2552#L878-3 [2018-11-18 11:37:51,846 INFO L796 eck$LassoCheckResult]: Loop: 2552#L878-3 assume true; 2597#L878-1 assume !false; 2534#L879 assume test_~splverifierCounter~0 < 4; 2535#L880 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 2455#L888 assume !(0 != test_~tmp~9); 2457#L888-2 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 2471#L898 assume !(0 != test_~tmp___0~2); 2539#L898-2 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 2542#L908 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2620#L770 assume { :end_inline_startSystem } true; 2628#L916-2 assume { :begin_inline_timeShift } true; 2481#L563 assume !(0 != ~pumpRunning~0); 2482#L563-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 2458#L621 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret38, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 2459#L595-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 2502#L857-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~9 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 2503#L862-1 isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; 2624#L740-3 assume !(0 != isHighWaterLevel_~tmp~8);isHighWaterLevel_~tmp___0~1 := 1; 2625#L740-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 2575#L746-1 processEnvironment__wrappee__methaneQuery_#t~ret38 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret38;havoc processEnvironment__wrappee__methaneQuery_#t~ret38; 2576#L599-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 2522#L587-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2523#L595-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2467#L621-1 assume { :end_inline_processEnvironment } true; 2468#L570-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret0, __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 2493#L849 __utac_acc__Specification4_spec__1_#t~ret0 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret0;havoc __utac_acc__Specification4_spec__1_#t~ret0; 2475#L51 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 2469#L51-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 2470#L580 assume { :end_inline_timeShift } true; 2552#L878-3 [2018-11-18 11:37:51,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:37:51,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2018-11-18 11:37:51,847 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:37:51,847 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:37:51,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:51,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:37:51,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:37:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:37:51,882 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:37:51,882 INFO L82 PathProgramCache]: Analyzing trace with hash -823424894, now seen corresponding path program 1 times [2018-11-18 11:37:51,883 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:37:51,883 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:37:51,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:51,884 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:37:51,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:51,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:37:51,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:37:51,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:37:51,928 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 11:37:51,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:37:51,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:37:51,929 INFO L87 Difference]: Start difference. First operand 299 states and 372 transitions. cyclomatic complexity: 76 Second operand 5 states. [2018-11-18 11:37:52,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:37:52,048 INFO L93 Difference]: Finished difference Result 739 states and 913 transitions. [2018-11-18 11:37:52,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:37:52,049 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 739 states and 913 transitions. [2018-11-18 11:37:52,053 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 549 [2018-11-18 11:37:52,056 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 739 states to 739 states and 913 transitions. [2018-11-18 11:37:52,056 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 739 [2018-11-18 11:37:52,057 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 739 [2018-11-18 11:37:52,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 739 states and 913 transitions. [2018-11-18 11:37:52,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:37:52,058 INFO L705 BuchiCegarLoop]: Abstraction has 739 states and 913 transitions. [2018-11-18 11:37:52,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states and 913 transitions. [2018-11-18 11:37:52,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 317. [2018-11-18 11:37:52,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2018-11-18 11:37:52,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 390 transitions. [2018-11-18 11:37:52,080 INFO L728 BuchiCegarLoop]: Abstraction has 317 states and 390 transitions. [2018-11-18 11:37:52,080 INFO L608 BuchiCegarLoop]: Abstraction has 317 states and 390 transitions. [2018-11-18 11:37:52,080 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 11:37:52,080 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 317 states and 390 transitions. [2018-11-18 11:37:52,082 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 227 [2018-11-18 11:37:52,082 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:37:52,082 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:37:52,082 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:37:52,082 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:37:52,083 INFO L794 eck$LassoCheckResult]: Stem: 3657#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(30);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(9);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(21);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(25);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 110];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,3 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 44];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 80];#memory_int := #memory_int[#t~string49.base,2 + #t~string49.offset := 117];#memory_int := #memory_int[#t~string49.base,3 + #t~string49.offset := 109];#memory_int := #memory_int[#t~string49.base,4 + #t~string49.offset := 112];#memory_int := #memory_int[#t~string49.base,5 + #t~string49.offset := 58];#memory_int := #memory_int[#t~string49.base,6 + #t~string49.offset := 0];call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 41];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 32];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 10];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(13);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 44];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 77];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 101];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 116];#memory_int := #memory_int[#t~string62.base,4 + #t~string62.offset := 104];#memory_int := #memory_int[#t~string62.base,5 + #t~string62.offset := 58];#memory_int := #memory_int[#t~string62.base,6 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 67];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 82];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 73];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 84];#memory_int := #memory_int[#t~string64.base,4 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 79];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 75];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 41];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 3529#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 3530#L959 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3572#L952 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 3579#L967 main_#t~ret37 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 3580#L534 assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 3603#L507 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3604#L878-3 [2018-11-18 11:37:52,083 INFO L796 eck$LassoCheckResult]: Loop: 3604#L878-3 assume true; 3802#L878-1 assume !false; 3801#L879 assume test_~splverifierCounter~0 < 4; 3706#L880 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 3507#L888 assume !(0 != test_~tmp~9); 3509#L888-2 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 3522#L898 assume !(0 != test_~tmp___0~2); 3590#L898-2 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 3594#L908 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3672#L770 assume { :end_inline_startSystem } true; 3701#L916-2 assume { :begin_inline_timeShift } true; 3531#L563 assume !(0 != ~pumpRunning~0); 3532#L563-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 3510#L621 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret38, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 3511#L595-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 3553#L857-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 3555#L862-1 isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; 3601#L740-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 3728#L740-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 3718#L746-1 processEnvironment__wrappee__methaneQuery_#t~ret38 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret38;havoc processEnvironment__wrappee__methaneQuery_#t~ret38; 3710#L599-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 3573#L587-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3574#L595-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3518#L621-1 assume { :end_inline_processEnvironment } true; 3519#L570-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret0, __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 3808#L849 __utac_acc__Specification4_spec__1_#t~ret0 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret0;havoc __utac_acc__Specification4_spec__1_#t~ret0; 3805#L51 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 3804#L51-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 3803#L580 assume { :end_inline_timeShift } true; 3604#L878-3 [2018-11-18 11:37:52,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:37:52,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2018-11-18 11:37:52,084 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:37:52,084 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:37:52,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:52,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:37:52,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:37:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:37:52,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:37:52,126 INFO L82 PathProgramCache]: Analyzing trace with hash -70473082, now seen corresponding path program 1 times [2018-11-18 11:37:52,126 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:37:52,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:37:52,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:52,127 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:37:52,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:37:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:37:52,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:37:52,138 INFO L82 PathProgramCache]: Analyzing trace with hash -196207806, now seen corresponding path program 1 times [2018-11-18 11:37:52,138 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:37:52,138 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:37:52,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:52,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:37:52,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:37:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:37:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:38:38,809 WARN L180 SmtUtils]: Spent 46.48 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 11:39:02,303 WARN L180 SmtUtils]: Spent 23.49 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 11:39:02,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 11:39:02 BoogieIcfgContainer [2018-11-18 11:39:02,392 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 11:39:02,393 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:39:02,393 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:39:02,393 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:39:02,394 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:37:50" (3/4) ... [2018-11-18 11:39:02,396 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 11:39:02,461 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ae7e6d11-5e33-4532-8268-5d92b1472e63/bin-2019/uautomizer/witness.graphml [2018-11-18 11:39:02,461 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:39:02,462 INFO L168 Benchmark]: Toolchain (without parser) took 73157.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.1 MB). Free memory was 955.5 MB in the beginning and 890.7 MB in the end (delta: 64.8 MB). Peak memory consumption was 238.9 MB. Max. memory is 11.5 GB. [2018-11-18 11:39:02,462 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:39:02,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 448.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -180.2 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:39:02,463 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:39:02,463 INFO L168 Benchmark]: Boogie Preprocessor took 31.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:39:02,464 INFO L168 Benchmark]: RCFGBuilder took 771.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 77.4 MB). Peak memory consumption was 77.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:39:02,464 INFO L168 Benchmark]: BuchiAutomizer took 71785.28 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 29.9 MB). Free memory was 1.0 GB in the beginning and 890.7 MB in the end (delta: 156.9 MB). Peak memory consumption was 194.8 MB. Max. memory is 11.5 GB. [2018-11-18 11:39:02,464 INFO L168 Benchmark]: Witness Printer took 68.28 ms. Allocated memory is still 1.2 GB. Free memory is still 890.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:39:02,466 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 448.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -180.2 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 771.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 77.4 MB). Peak memory consumption was 77.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 71785.28 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 29.9 MB). Free memory was 1.0 GB in the beginning and 890.7 MB in the end (delta: 156.9 MB). Peak memory consumption was 194.8 MB. Max. memory is 11.5 GB. * Witness Printer took 68.28 ms. Allocated memory is still 1.2 GB. Free memory is still 890.7 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 317 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 71.7s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 70.9s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1280 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 317 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1245 SDtfs, 2444 SDslu, 2800 SDs, 0 SdLazy, 239 SolverSat, 77 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI3 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: 878]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, "CRIT"=0, ",Meth:"=0, "Off"=0, ") "=35, retValue_acc=0, "On"=0, "Env(Water:%i"=0, "Pump(System:"=0, "CRIT"=39, methaneLevelCritical=0, tmp___0=0, retValue_acc=1, ")"=0, "libacc.c"=15, "OK"=0, ")"=8, tmp___1=0, tmp=0, "i > 0 && i <= this->argsCount"=19, retValue_acc=0, "i > 0 && i <= this->argsCount"=23, "i > 0 && i <= this->argsCount"=27, tmp___0=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1692cb7c=0, "__utac__get_this_argtype"=14, "__utac__get_this_arg"=20, "__utac__get_this_argtype"=17, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b49a96c=0, "On"=12, "Off"=34, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, NULL=0, systemActive=1, waterLevel=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f9b75c3=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63f00877=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22af9849=0, ",Pump:"=0, \result=0, "Off"=29, "Env(Water:%i"=37, ") "=0, "\n"=0, "Off"=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, ",Pump:"=31, "\n"=36, \result=0, "libacc.c"=26, tmp=1, "OK"=40, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c52a3ee=0, "libacc.c"=0, "On"=0, "__utac__get_this_argtype"=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13adf4c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@317c120f=155, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@191815bf=0, "__utac__get_this_arg"=24, retValue_acc=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26d81551=0, tmp___2=155, tmp___0=0, "libacc.c"=18, splverifierCounter=0, head=0, "libacc.c"=22, "libacc.c"=0, tmp=0, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=16, "__utac__get_this_argtype"=0, "__utac__get_this_arg"=0, "Pump(System:"=11, ",Meth:"=38, "On"=33, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 878]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L366] FCALL "i > 0 && i <= this->argsCount" [L366] FCALL "libacc.c" [L367] FCALL "__utac__get_this_arg" [L373] FCALL "i > 0 && i <= this->argsCount" [L373] FCALL "libacc.c" [L374] FCALL "__utac__get_this_arg" [L412] FCALL "i > 0 && i <= this->argsCount" [L412] FCALL "libacc.c" [L413] FCALL "__utac__get_this_argtype" [L419] FCALL "i > 0 && i <= this->argsCount" [L419] FCALL "libacc.c" [L420] FCALL "__utac__get_this_argtype" [L700] FCALL "Pump(System:" [L704] FCALL "On" [L708] FCALL "Off" [L712] FCALL ",Pump:" [L716] FCALL "On" [L720] FCALL "Off" [L724] FCALL ") " [L726] FCALL "\n" [L826] FCALL "Env(Water:%i" [L827] FCALL ",Meth:" [L831] FCALL "CRIT" [L835] FCALL "OK" [L839] FCALL ")" [L444] int cleanupTimeShifts = 4; [L556] int pumpRunning = 0; [L557] int systemActive = 1; [L774] int waterLevel = 1; [L775] int methaneLevelCritical = 0; [L238] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L525] int retValue_acc ; [L526] int tmp ; [L530] FCALL select_helpers() [L531] FCALL select_features() [L532] CALL, EXPR valid_product() [L963] int retValue_acc ; [L966] retValue_acc = 1 [L967] RET return (retValue_acc); [L532] EXPR valid_product() [L532] tmp = valid_product() [L534] COND TRUE \read(tmp) [L536] FCALL setup() [L537] CALL runTest() [L516] CALL test() [L869] int splverifierCounter ; [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; [L873] int tmp___2 ; [L876] splverifierCounter = 0 Loop: [L878] COND TRUE 1 [L880] COND TRUE splverifierCounter < 4 [L886] tmp = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp)) [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp___2) [L910] CALL startSystem() [L769] RET systemActive = 1 [L910] startSystem() [L925] CALL timeShift() [L563] COND FALSE !(\read(pumpRunning)) [L570] COND TRUE \read(systemActive) [L572] CALL processEnvironment() [L618] int tmp ; [L621] COND FALSE !(\read(pumpRunning)) [L636] CALL processEnvironment__wrappee__methaneQuery() [L592] int tmp ; [L595] COND TRUE ! pumpRunning [L597] CALL, EXPR isHighWaterLevel() [L732] int retValue_acc ; [L733] int tmp ; [L734] int tmp___0 ; [L738] CALL, EXPR isHighWaterSensorDry() [L854] int retValue_acc ; [L857] COND TRUE waterLevel < 2 [L858] retValue_acc = 1 [L859] RET return (retValue_acc); [L738] EXPR isHighWaterSensorDry() [L738] tmp = isHighWaterSensorDry() [L740] COND TRUE \read(tmp) [L741] tmp___0 = 0 [L745] retValue_acc = tmp___0 [L746] RET return (retValue_acc); [L597] EXPR isHighWaterLevel() [L597] tmp = isHighWaterLevel() [L599] COND FALSE !(\read(tmp)) [L605] RET, FCALL processEnvironment__wrappee__base() [L636] RET processEnvironment__wrappee__methaneQuery() [L572] processEnvironment() [L578] CALL __utac_acc__Specification4_spec__1() [L44] int tmp ; [L45] int tmp___0 ; [L49] CALL, EXPR getWaterLevel() [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] RET return (retValue_acc); [L49] EXPR getWaterLevel() [L49] tmp = getWaterLevel() [L51] COND FALSE, RET !(tmp == 0) [L578] RET __utac_acc__Specification4_spec__1() [L925] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...