./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product40_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_5ac5ba56-89e3-463e-b781-1df36b8525f3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5ac5ba56-89e3-463e-b781-1df36b8525f3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5ac5ba56-89e3-463e-b781-1df36b8525f3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5ac5ba56-89e3-463e-b781-1df36b8525f3/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product40_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5ac5ba56-89e3-463e-b781-1df36b8525f3/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5ac5ba56-89e3-463e-b781-1df36b8525f3/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 6b0dd49774129de8b6944c8beb9911dd98f5e936 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 09:33:34,718 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:33:34,720 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:33:34,729 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:33:34,729 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:33:34,729 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:33:34,730 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:33:34,731 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:33:34,732 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:33:34,733 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:33:34,734 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:33:34,734 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:33:34,734 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:33:34,735 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:33:34,736 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:33:34,736 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:33:34,737 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:33:34,738 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:33:34,739 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:33:34,740 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:33:34,741 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:33:34,742 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:33:34,743 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:33:34,744 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:33:34,744 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:33:34,744 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:33:34,745 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:33:34,746 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:33:34,746 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:33:34,747 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:33:34,747 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:33:34,748 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:33:34,748 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:33:34,748 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:33:34,748 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:33:34,749 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:33:34,749 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5ac5ba56-89e3-463e-b781-1df36b8525f3/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 09:33:34,760 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:33:34,760 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:33:34,761 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:33:34,761 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:33:34,761 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:33:34,761 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 09:33:34,761 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 09:33:34,761 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 09:33:34,761 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 09:33:34,762 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 09:33:34,762 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 09:33:34,762 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:33:34,762 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:33:34,762 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 09:33:34,762 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:33:34,762 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:33:34,763 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:33:34,763 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 09:33:34,763 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 09:33:34,763 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 09:33:34,763 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:33:34,763 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:33:34,763 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 09:33:34,763 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:33:34,763 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 09:33:34,764 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:33:34,764 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:33:34,764 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 09:33:34,764 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:33:34,764 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 09:33:34,764 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 09:33:34,765 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 09:33:34,765 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_5ac5ba56-89e3-463e-b781-1df36b8525f3/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 -> 6b0dd49774129de8b6944c8beb9911dd98f5e936 [2018-11-18 09:33:34,787 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:33:34,796 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:33:34,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:33:34,800 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:33:34,801 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:33:34,801 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5ac5ba56-89e3-463e-b781-1df36b8525f3/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product40_false-unreach-call_false-termination.cil.c [2018-11-18 09:33:34,843 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5ac5ba56-89e3-463e-b781-1df36b8525f3/bin-2019/uautomizer/data/312763dec/509468a193dd4f34bb882fa73753dd82/FLAG2181a738b [2018-11-18 09:33:35,205 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:33:35,205 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5ac5ba56-89e3-463e-b781-1df36b8525f3/sv-benchmarks/c/product-lines/minepump_spec3_product40_false-unreach-call_false-termination.cil.c [2018-11-18 09:33:35,211 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5ac5ba56-89e3-463e-b781-1df36b8525f3/bin-2019/uautomizer/data/312763dec/509468a193dd4f34bb882fa73753dd82/FLAG2181a738b [2018-11-18 09:33:35,617 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5ac5ba56-89e3-463e-b781-1df36b8525f3/bin-2019/uautomizer/data/312763dec/509468a193dd4f34bb882fa73753dd82 [2018-11-18 09:33:35,620 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:33:35,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:33:35,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:33:35,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:33:35,624 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:33:35,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:33:35" (1/1) ... [2018-11-18 09:33:35,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@119e0fa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:35, skipping insertion in model container [2018-11-18 09:33:35,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:33:35" (1/1) ... [2018-11-18 09:33:35,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:33:35,664 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:33:35,851 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:33:35,860 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:33:35,967 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:33:35,987 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:33:35,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:35 WrapperNode [2018-11-18 09:33:35,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:33:35,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:33:35,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:33:35,988 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:33:35,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:35" (1/1) ... [2018-11-18 09:33:36,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:35" (1/1) ... [2018-11-18 09:33:36,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:33:36,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:33:36,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:33:36,025 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:33:36,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:35" (1/1) ... [2018-11-18 09:33:36,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:35" (1/1) ... [2018-11-18 09:33:36,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:35" (1/1) ... [2018-11-18 09:33:36,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:35" (1/1) ... [2018-11-18 09:33:36,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:35" (1/1) ... [2018-11-18 09:33:36,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:35" (1/1) ... [2018-11-18 09:33:36,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:35" (1/1) ... [2018-11-18 09:33:36,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:33:36,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:33:36,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:33:36,050 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:33:36,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5ac5ba56-89e3-463e-b781-1df36b8525f3/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 09:33:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:33:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:33:36,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:33:36,741 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:33:36,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:33:36 BoogieIcfgContainer [2018-11-18 09:33:36,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:33:36,742 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 09:33:36,742 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 09:33:36,744 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 09:33:36,745 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:33:36,745 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 09:33:35" (1/3) ... [2018-11-18 09:33:36,746 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30574185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:33:36, skipping insertion in model container [2018-11-18 09:33:36,746 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:33:36,746 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:33:35" (2/3) ... [2018-11-18 09:33:36,746 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30574185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:33:36, skipping insertion in model container [2018-11-18 09:33:36,746 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:33:36,746 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:33:36" (3/3) ... [2018-11-18 09:33:36,748 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product40_false-unreach-call_false-termination.cil.c [2018-11-18 09:33:36,781 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:33:36,782 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 09:33:36,782 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 09:33:36,782 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 09:33:36,782 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:33:36,782 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:33:36,782 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 09:33:36,782 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:33:36,782 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 09:33:36,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 169 states. [2018-11-18 09:33:36,819 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 111 [2018-11-18 09:33:36,819 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:33:36,819 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:33:36,826 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:33:36,826 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 09:33:36,827 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 09:33:36,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 169 states. [2018-11-18 09:33:36,833 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 111 [2018-11-18 09:33:36,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:33:36,833 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:33:36,834 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:33:36,834 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 09:33:36,838 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~string6.base, #t~string6.offset := #Ultimate.alloc(13);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 44];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 77];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 101];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 116];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 104];#memory_int := #memory_int[#t~string8.base,5 + #t~string8.offset := 58];#memory_int := #memory_int[#t~string8.base,6 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 67];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 82];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 73];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 84];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 75];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 41];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string21.base,#t~string21.offset := 79];#memory_int := #memory_int[#t~string21.base,1 + #t~string21.offset := 110];#memory_int := #memory_int[#t~string21.base,2 + #t~string21.offset := 0];call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string23.base,#t~string23.offset := 79];#memory_int := #memory_int[#t~string23.base,1 + #t~string23.offset := 102];#memory_int := #memory_int[#t~string23.base,2 + #t~string23.offset := 102];#memory_int := #memory_int[#t~string23.base,3 + #t~string23.offset := 0];call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string25.base,#t~string25.offset := 44];#memory_int := #memory_int[#t~string25.base,1 + #t~string25.offset := 80];#memory_int := #memory_int[#t~string25.base,2 + #t~string25.offset := 117];#memory_int := #memory_int[#t~string25.base,3 + #t~string25.offset := 109];#memory_int := #memory_int[#t~string25.base,4 + #t~string25.offset := 112];#memory_int := #memory_int[#t~string25.base,5 + #t~string25.offset := 58];#memory_int := #memory_int[#t~string25.base,6 + #t~string25.offset := 0];call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string27.base,#t~string27.offset := 79];#memory_int := #memory_int[#t~string27.base,1 + #t~string27.offset := 110];#memory_int := #memory_int[#t~string27.base,2 + #t~string27.offset := 0];call #t~string29.base, #t~string29.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string29.base,#t~string29.offset := 79];#memory_int := #memory_int[#t~string29.base,1 + #t~string29.offset := 102];#memory_int := #memory_int[#t~string29.base,2 + #t~string29.offset := 102];#memory_int := #memory_int[#t~string29.base,3 + #t~string29.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 41];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 32];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 10];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 62#L166true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 158#L159true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 91#L174true main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 88#L130true assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 29#L103true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 28#L538-3true [2018-11-18 09:33:36,838 INFO L796 eck$LassoCheckResult]: Loop: 28#L538-3true assume true; 22#L538-1true assume !false; 150#L539true assume test_~splverifierCounter~0 < 4; 85#L540true test_~tmp~5 := test_#t~nondet35;havoc test_#t~nondet35; 93#L548true assume !(0 != test_~tmp~5); 98#L548-2true test_~tmp___0~2 := test_#t~nondet36;havoc test_#t~nondet36; 152#L558true assume !(0 != test_~tmp___0~2); 154#L558-2true test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 59#L568true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 65#L524true assume { :end_inline_startSystem } true; 72#L576-2true assume { :begin_inline_timeShift } true; 58#L334true assume !(0 != ~pumpRunning~0); 66#L334-2true assume !(0 != ~systemActive~0); 123#L341-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_#t~ret4, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 135#L272-1true __utac_acc__Specification3_spec__1_#t~ret2 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret2;havoc __utac_acc__Specification3_spec__1_#t~ret2; 161#L192true assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 114#L198-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 37#L351true assume { :end_inline_timeShift } true; 28#L538-3true [2018-11-18 09:33:36,843 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:33:36,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 09:33:36,845 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:33:36,846 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:33:36,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:36,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:33:36,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:33:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:33:37,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:33:37,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1227393211, now seen corresponding path program 1 times [2018-11-18 09:33:37,006 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:33:37,006 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:33:37,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:37,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:33:37,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:33:37,046 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 09:33:37,047 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:33:37,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:33:37,050 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:33:37,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:33:37,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:33:37,061 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 3 states. [2018-11-18 09:33:37,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:33:37,146 INFO L93 Difference]: Finished difference Result 323 states and 427 transitions. [2018-11-18 09:33:37,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:33:37,148 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 323 states and 427 transitions. [2018-11-18 09:33:37,153 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 212 [2018-11-18 09:33:37,159 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 323 states to 303 states and 406 transitions. [2018-11-18 09:33:37,160 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 303 [2018-11-18 09:33:37,161 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 303 [2018-11-18 09:33:37,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 303 states and 406 transitions. [2018-11-18 09:33:37,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:33:37,164 INFO L705 BuchiCegarLoop]: Abstraction has 303 states and 406 transitions. [2018-11-18 09:33:37,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states and 406 transitions. [2018-11-18 09:33:37,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 300. [2018-11-18 09:33:37,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2018-11-18 09:33:37,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 402 transitions. [2018-11-18 09:33:37,195 INFO L728 BuchiCegarLoop]: Abstraction has 300 states and 402 transitions. [2018-11-18 09:33:37,195 INFO L608 BuchiCegarLoop]: Abstraction has 300 states and 402 transitions. [2018-11-18 09:33:37,195 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 09:33:37,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 300 states and 402 transitions. [2018-11-18 09:33:37,199 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 209 [2018-11-18 09:33:37,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:33:37,199 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:33:37,200 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:33:37,200 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 09:33:37,200 INFO L794 eck$LassoCheckResult]: Stem: 653#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string6.base, #t~string6.offset := #Ultimate.alloc(13);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 44];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 77];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 101];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 116];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 104];#memory_int := #memory_int[#t~string8.base,5 + #t~string8.offset := 58];#memory_int := #memory_int[#t~string8.base,6 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 67];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 82];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 73];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 84];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 75];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 41];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string21.base,#t~string21.offset := 79];#memory_int := #memory_int[#t~string21.base,1 + #t~string21.offset := 110];#memory_int := #memory_int[#t~string21.base,2 + #t~string21.offset := 0];call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string23.base,#t~string23.offset := 79];#memory_int := #memory_int[#t~string23.base,1 + #t~string23.offset := 102];#memory_int := #memory_int[#t~string23.base,2 + #t~string23.offset := 102];#memory_int := #memory_int[#t~string23.base,3 + #t~string23.offset := 0];call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string25.base,#t~string25.offset := 44];#memory_int := #memory_int[#t~string25.base,1 + #t~string25.offset := 80];#memory_int := #memory_int[#t~string25.base,2 + #t~string25.offset := 117];#memory_int := #memory_int[#t~string25.base,3 + #t~string25.offset := 109];#memory_int := #memory_int[#t~string25.base,4 + #t~string25.offset := 112];#memory_int := #memory_int[#t~string25.base,5 + #t~string25.offset := 58];#memory_int := #memory_int[#t~string25.base,6 + #t~string25.offset := 0];call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string27.base,#t~string27.offset := 79];#memory_int := #memory_int[#t~string27.base,1 + #t~string27.offset := 110];#memory_int := #memory_int[#t~string27.base,2 + #t~string27.offset := 0];call #t~string29.base, #t~string29.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string29.base,#t~string29.offset := 79];#memory_int := #memory_int[#t~string29.base,1 + #t~string29.offset := 102];#memory_int := #memory_int[#t~string29.base,2 + #t~string29.offset := 102];#memory_int := #memory_int[#t~string29.base,3 + #t~string29.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 41];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 32];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 10];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 513#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 514#L166 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 604#L159 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 625#L174 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 623#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 551#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 550#L538-3 [2018-11-18 09:33:37,200 INFO L796 eck$LassoCheckResult]: Loop: 550#L538-3 assume true; 538#L538-1 assume !false; 539#L539 assume test_~splverifierCounter~0 < 4; 620#L540 test_~tmp~5 := test_#t~nondet35;havoc test_#t~nondet35; 621#L548 assume !(0 != test_~tmp~5); 627#L548-2 test_~tmp___0~2 := test_#t~nondet36;havoc test_#t~nondet36; 630#L558 assume !(0 != test_~tmp___0~2); 638#L558-2 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 599#L568 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 600#L524 assume { :end_inline_startSystem } true; 607#L576-2 assume { :begin_inline_timeShift } true; 597#L334 assume !(0 != ~pumpRunning~0); 561#L334-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 572#L392 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret15, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 574#L366-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 629#L358-3 assume { :end_inline_processEnvironment__wrappee__base } true; 628#L366-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 582#L392-1 assume { :end_inline_processEnvironment } true; 583#L341-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_#t~ret4, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 651#L272-1 __utac_acc__Specification3_spec__1_#t~ret2 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret2;havoc __utac_acc__Specification3_spec__1_#t~ret2; 663#L192 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 613#L198-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 562#L351 assume { :end_inline_timeShift } true; 550#L538-3 [2018-11-18 09:33:37,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:33:37,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 09:33:37,204 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:33:37,204 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:33:37,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:37,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:33:37,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:33:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:33:37,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:33:37,261 INFO L82 PathProgramCache]: Analyzing trace with hash -151863052, now seen corresponding path program 1 times [2018-11-18 09:33:37,261 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:33:37,262 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:33:37,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:37,263 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:33:37,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:33:37,292 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 09:33:37,292 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:33:37,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:33:37,293 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:33:37,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:33:37,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:33:37,295 INFO L87 Difference]: Start difference. First operand 300 states and 402 transitions. cyclomatic complexity: 105 Second operand 3 states. [2018-11-18 09:33:37,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:33:37,364 INFO L93 Difference]: Finished difference Result 428 states and 553 transitions. [2018-11-18 09:33:37,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:33:37,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 428 states and 553 transitions. [2018-11-18 09:33:37,368 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 307 [2018-11-18 09:33:37,371 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 428 states to 428 states and 553 transitions. [2018-11-18 09:33:37,371 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 428 [2018-11-18 09:33:37,372 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 428 [2018-11-18 09:33:37,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 428 states and 553 transitions. [2018-11-18 09:33:37,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:33:37,374 INFO L705 BuchiCegarLoop]: Abstraction has 428 states and 553 transitions. [2018-11-18 09:33:37,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states and 553 transitions. [2018-11-18 09:33:37,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2018-11-18 09:33:37,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2018-11-18 09:33:37,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 553 transitions. [2018-11-18 09:33:37,388 INFO L728 BuchiCegarLoop]: Abstraction has 428 states and 553 transitions. [2018-11-18 09:33:37,389 INFO L608 BuchiCegarLoop]: Abstraction has 428 states and 553 transitions. [2018-11-18 09:33:37,389 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 09:33:37,389 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 428 states and 553 transitions. [2018-11-18 09:33:37,391 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 307 [2018-11-18 09:33:37,391 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:33:37,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:33:37,392 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:33:37,392 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 09:33:37,393 INFO L794 eck$LassoCheckResult]: Stem: 1390#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string6.base, #t~string6.offset := #Ultimate.alloc(13);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 44];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 77];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 101];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 116];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 104];#memory_int := #memory_int[#t~string8.base,5 + #t~string8.offset := 58];#memory_int := #memory_int[#t~string8.base,6 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 67];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 82];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 73];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 84];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 75];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 41];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string21.base,#t~string21.offset := 79];#memory_int := #memory_int[#t~string21.base,1 + #t~string21.offset := 110];#memory_int := #memory_int[#t~string21.base,2 + #t~string21.offset := 0];call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string23.base,#t~string23.offset := 79];#memory_int := #memory_int[#t~string23.base,1 + #t~string23.offset := 102];#memory_int := #memory_int[#t~string23.base,2 + #t~string23.offset := 102];#memory_int := #memory_int[#t~string23.base,3 + #t~string23.offset := 0];call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string25.base,#t~string25.offset := 44];#memory_int := #memory_int[#t~string25.base,1 + #t~string25.offset := 80];#memory_int := #memory_int[#t~string25.base,2 + #t~string25.offset := 117];#memory_int := #memory_int[#t~string25.base,3 + #t~string25.offset := 109];#memory_int := #memory_int[#t~string25.base,4 + #t~string25.offset := 112];#memory_int := #memory_int[#t~string25.base,5 + #t~string25.offset := 58];#memory_int := #memory_int[#t~string25.base,6 + #t~string25.offset := 0];call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string27.base,#t~string27.offset := 79];#memory_int := #memory_int[#t~string27.base,1 + #t~string27.offset := 110];#memory_int := #memory_int[#t~string27.base,2 + #t~string27.offset := 0];call #t~string29.base, #t~string29.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string29.base,#t~string29.offset := 79];#memory_int := #memory_int[#t~string29.base,1 + #t~string29.offset := 102];#memory_int := #memory_int[#t~string29.base,2 + #t~string29.offset := 102];#memory_int := #memory_int[#t~string29.base,3 + #t~string29.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 41];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 32];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 10];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1247#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 1248#L166 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1337#L159 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 1360#L174 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1359#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 1289#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1290#L538-3 [2018-11-18 09:33:37,393 INFO L796 eck$LassoCheckResult]: Loop: 1290#L538-3 assume true; 1481#L538-1 assume !false; 1480#L539 assume test_~splverifierCounter~0 < 4; 1479#L540 test_~tmp~5 := test_#t~nondet35;havoc test_#t~nondet35; 1478#L548 assume !(0 != test_~tmp~5); 1477#L548-2 test_~tmp___0~2 := test_#t~nondet36;havoc test_#t~nondet36; 1411#L558 assume !(0 != test_~tmp___0~2); 1372#L558-2 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 1471#L568 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1333#L524 assume { :end_inline_startSystem } true; 1340#L576-2 assume { :begin_inline_timeShift } true; 1330#L334 assume !(0 != ~pumpRunning~0); 1331#L334-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1308#L392 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret15, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 1309#L366-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 1338#L312-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 1339#L317-1 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 1292#L494-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1252#L494-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1253#L500-1 processEnvironment__wrappee__highWaterSensor_#t~ret15 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret15;havoc processEnvironment__wrappee__highWaterSensor_#t~ret15; 1327#L370-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2);assume { :begin_inline_processEnvironment__wrappee__base } true; 1329#L358-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1494#L366-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1406#L392-1 assume { :end_inline_processEnvironment } true; 1462#L341-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_#t~ret4, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 1463#L272-1 __utac_acc__Specification3_spec__1_#t~ret2 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret2;havoc __utac_acc__Specification3_spec__1_#t~ret2; 1457#L192 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 1450#L198-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1451#L351 assume { :end_inline_timeShift } true; 1290#L538-3 [2018-11-18 09:33:37,393 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:33:37,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 09:33:37,393 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:33:37,394 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:33:37,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:37,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:33:37,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:33:37,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:33:37,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:33:37,434 INFO L82 PathProgramCache]: Analyzing trace with hash -533204788, now seen corresponding path program 1 times [2018-11-18 09:33:37,434 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:33:37,435 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:33:37,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:37,435 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:33:37,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:33:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:33:37,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:33:37,448 INFO L82 PathProgramCache]: Analyzing trace with hash -658939512, now seen corresponding path program 1 times [2018-11-18 09:33:37,448 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:33:37,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:33:37,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:37,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:33:37,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:33:37,575 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 09:33:37,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:33:37,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:33:37,702 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-11-18 09:33:37,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:33:37,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:33:37,771 INFO L87 Difference]: Start difference. First operand 428 states and 553 transitions. cyclomatic complexity: 128 Second operand 5 states. [2018-11-18 09:33:37,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:33:37,977 INFO L93 Difference]: Finished difference Result 1482 states and 1903 transitions. [2018-11-18 09:33:37,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 09:33:37,978 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1482 states and 1903 transitions. [2018-11-18 09:33:37,988 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1128 [2018-11-18 09:33:37,996 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1482 states to 1482 states and 1903 transitions. [2018-11-18 09:33:37,996 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1482 [2018-11-18 09:33:37,998 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1482 [2018-11-18 09:33:37,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1482 states and 1903 transitions. [2018-11-18 09:33:38,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:33:38,001 INFO L705 BuchiCegarLoop]: Abstraction has 1482 states and 1903 transitions. [2018-11-18 09:33:38,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states and 1903 transitions. [2018-11-18 09:33:38,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 849. [2018-11-18 09:33:38,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2018-11-18 09:33:38,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1083 transitions. [2018-11-18 09:33:38,036 INFO L728 BuchiCegarLoop]: Abstraction has 849 states and 1083 transitions. [2018-11-18 09:33:38,036 INFO L608 BuchiCegarLoop]: Abstraction has 849 states and 1083 transitions. [2018-11-18 09:33:38,036 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 09:33:38,036 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 849 states and 1083 transitions. [2018-11-18 09:33:38,040 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 614 [2018-11-18 09:33:38,041 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:33:38,041 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:33:38,041 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:33:38,042 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:33:38,042 INFO L794 eck$LassoCheckResult]: Stem: 3332#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string6.base, #t~string6.offset := #Ultimate.alloc(13);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 44];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 77];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 101];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 116];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 104];#memory_int := #memory_int[#t~string8.base,5 + #t~string8.offset := 58];#memory_int := #memory_int[#t~string8.base,6 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 67];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 82];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 73];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 84];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 75];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 41];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string21.base,#t~string21.offset := 79];#memory_int := #memory_int[#t~string21.base,1 + #t~string21.offset := 110];#memory_int := #memory_int[#t~string21.base,2 + #t~string21.offset := 0];call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string23.base,#t~string23.offset := 79];#memory_int := #memory_int[#t~string23.base,1 + #t~string23.offset := 102];#memory_int := #memory_int[#t~string23.base,2 + #t~string23.offset := 102];#memory_int := #memory_int[#t~string23.base,3 + #t~string23.offset := 0];call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string25.base,#t~string25.offset := 44];#memory_int := #memory_int[#t~string25.base,1 + #t~string25.offset := 80];#memory_int := #memory_int[#t~string25.base,2 + #t~string25.offset := 117];#memory_int := #memory_int[#t~string25.base,3 + #t~string25.offset := 109];#memory_int := #memory_int[#t~string25.base,4 + #t~string25.offset := 112];#memory_int := #memory_int[#t~string25.base,5 + #t~string25.offset := 58];#memory_int := #memory_int[#t~string25.base,6 + #t~string25.offset := 0];call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string27.base,#t~string27.offset := 79];#memory_int := #memory_int[#t~string27.base,1 + #t~string27.offset := 110];#memory_int := #memory_int[#t~string27.base,2 + #t~string27.offset := 0];call #t~string29.base, #t~string29.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string29.base,#t~string29.offset := 79];#memory_int := #memory_int[#t~string29.base,1 + #t~string29.offset := 102];#memory_int := #memory_int[#t~string29.base,2 + #t~string29.offset := 102];#memory_int := #memory_int[#t~string29.base,3 + #t~string29.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 41];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 32];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 10];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 3175#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 3176#L166 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3270#L159 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 3299#L174 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 3296#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 3220#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3213#L538-3 [2018-11-18 09:33:38,042 INFO L796 eck$LassoCheckResult]: Loop: 3213#L538-3 assume true; 3201#L538-1 assume !false; 3202#L539 assume test_~splverifierCounter~0 < 4; 3293#L540 test_~tmp~5 := test_#t~nondet35;havoc test_#t~nondet35; 3294#L548 assume !(0 != test_~tmp~5); 3301#L548-2 test_~tmp___0~2 := test_#t~nondet36;havoc test_#t~nondet36; 3304#L558 assume !(0 != test_~tmp___0~2); 3357#L558-2 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 3727#L568 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3274#L524 assume { :end_inline_startSystem } true; 3275#L576-2 assume { :begin_inline_timeShift } true; 3263#L334 assume !(0 != ~pumpRunning~0); 3264#L334-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 3236#L392 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret15, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 3237#L366-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 3271#L312-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 3272#L317-1 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 3222#L494-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 3180#L494-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 3181#L500-1 processEnvironment__wrappee__highWaterSensor_#t~ret15 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret15;havoc processEnvironment__wrappee__highWaterSensor_#t~ret15; 3258#L370-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2);assume { :begin_inline_processEnvironment__wrappee__base } true; 3260#L358-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3302#L366-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3350#L392-1 assume { :end_inline_processEnvironment } true; 3329#L341-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_#t~ret4, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 3330#L272-1 __utac_acc__Specification3_spec__1_#t~ret2 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret2;havoc __utac_acc__Specification3_spec__1_#t~ret2; 3341#L192 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 3252#L304 __utac_acc__Specification3_spec__1_#t~ret3 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret3;havoc __utac_acc__Specification3_spec__1_#t~ret3; 3253#L198 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 3281#L198-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3225#L351 assume { :end_inline_timeShift } true; 3213#L538-3 [2018-11-18 09:33:38,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:33:38,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2018-11-18 09:33:38,043 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:33:38,043 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:33:38,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:38,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:33:38,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:33:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:33:38,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:33:38,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1307439329, now seen corresponding path program 1 times [2018-11-18 09:33:38,077 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:33:38,078 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:33:38,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:38,078 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:33:38,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:33:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:33:38,088 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:33:38,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1879424805, now seen corresponding path program 1 times [2018-11-18 09:33:38,088 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:33:38,088 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:33:38,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:38,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:33:38,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:33:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:33:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:34:58,882 WARN L180 SmtUtils]: Spent 1.34 m on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 09:35:44,388 WARN L180 SmtUtils]: Spent 45.50 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 09:35:44,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 09:35:44 BoogieIcfgContainer [2018-11-18 09:35:44,478 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 09:35:44,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:35:44,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:35:44,479 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:35:44,479 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:33:36" (3/4) ... [2018-11-18 09:35:44,481 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 09:35:44,526 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5ac5ba56-89e3-463e-b781-1df36b8525f3/bin-2019/uautomizer/witness.graphml [2018-11-18 09:35:44,527 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:35:44,527 INFO L168 Benchmark]: Toolchain (without parser) took 128907.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.3 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -152.3 MB). Peak memory consumption was 48.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:35:44,528 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:35:44,528 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:35:44,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.41 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:35:44,529 INFO L168 Benchmark]: Boogie Preprocessor took 24.60 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:35:44,529 INFO L168 Benchmark]: RCFGBuilder took 691.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. [2018-11-18 09:35:44,529 INFO L168 Benchmark]: BuchiAutomizer took 127736.77 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -68.0 MB). Peak memory consumption was 326.3 MB. Max. memory is 11.5 GB. [2018-11-18 09:35:44,529 INFO L168 Benchmark]: Witness Printer took 47.88 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:35:44,531 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 365.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.41 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.60 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 691.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 127736.77 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -68.0 MB). Peak memory consumption was 326.3 MB. Max. memory is 11.5 GB. * Witness Printer took 47.88 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 849 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 127.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 127.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 636 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 849 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 753 SDtfs, 1155 SDslu, 1286 SDs, 0 SdLazy, 114 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 538]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6dfba2d0=0, "__utac__get_this_arg"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@423fded9=0, "CRIT"=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b0f7fc2=0, retValue_acc=0, "__utac__get_this_argtype"=27, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, methaneLevelCritical=0, ",Meth:"=22, tmp___0=0, "i > 0 && i <= this->argsCount"=0, tmp=0, "__utac__get_this_argtype"=0, "\n"=37, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15c3fa58=0, retValue_acc=0, "__utac__get_this_argtype"=11, "libacc.c"=0, tmp___1=0, "Off"=39, "Off"=15, ",Meth:"=0, "Env(Water:%i"=0, tmp___0=1, tmp=0, cleanupTimeShifts=4, ",Pump:"=12, ") "=38, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76a3cd9a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a3b616=165, ")"=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16d68297=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4715e2d0=0, ",Pump:"=0, "Off"=0, "On"=0, "On"=0, "Off"=0, NULL=0, systemActive=1, waterLevel=1, "i > 0 && i <= this->argsCount"=28, \result=1, ")"=0, "libacc.c"=36, "OK"=0, retValue_acc=0, "OK"=19, \result=0, "CRIT"=0, "i > 0 && i <= this->argsCount"=34, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, \result=1, head=0, pumpRunning=0, tmp=1, "i > 0 && i <= this->argsCount"=23, \result=0, retValue_acc=1, "On"=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f4502a5=0, "Pump(System:"=0, "i > 0 && i <= this->argsCount"=31, "libacc.c"=0, "\n"=0, \result=1, "libacc.c"=29, "libacc.c"=24, "__utac__get_this_argtype"=0, tmp=1, retValue_acc=1, tmp___2=165, tmp___0=0, retValue_acc=1, splverifierCounter=0, "__utac__get_this_arg"=0, \result=0, "Env(Water:%i"=8, "libacc.c"=26, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ac3901=0, "__utac__get_this_arg"=35, tmp___1=0, tmp=0, head=0, "Pump(System:"=17, "On"=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f48b512=0, ") "=0, "__utac__get_this_arg"=33} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 538]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L281] FCALL "Env(Water:%i" [L282] FCALL ",Meth:" [L286] FCALL "CRIT" [L290] FCALL "OK" [L294] FCALL ")" [L454] FCALL "Pump(System:" [L458] FCALL "On" [L462] FCALL "Off" [L466] FCALL ",Pump:" [L470] FCALL "On" [L474] FCALL "Off" [L478] FCALL ") " [L480] FCALL "\n" [L894] FCALL "i > 0 && i <= this->argsCount" [L894] FCALL "libacc.c" [L895] FCALL "__utac__get_this_arg" [L901] FCALL "i > 0 && i <= this->argsCount" [L901] FCALL "libacc.c" [L902] FCALL "__utac__get_this_arg" [L940] FCALL "i > 0 && i <= this->argsCount" [L940] FCALL "libacc.c" [L941] FCALL "__utac__get_this_argtype" [L947] FCALL "i > 0 && i <= this->argsCount" [L947] FCALL "libacc.c" [L948] FCALL "__utac__get_this_argtype" [L40] int cleanupTimeShifts = 4; [L229] int waterLevel = 1; [L230] int methaneLevelCritical = 0; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L766] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] RET return (retValue_acc); [L128] EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L529] int splverifierCounter ; [L530] int tmp ; [L531] int tmp___0 ; [L532] int tmp___1 ; [L533] int tmp___2 ; [L536] splverifierCounter = 0 Loop: [L538] COND TRUE 1 [L540] COND TRUE splverifierCounter < 4 [L546] tmp = __VERIFIER_nondet_int() [L548] COND FALSE !(\read(tmp)) [L556] tmp___0 = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp___0)) [L566] tmp___2 = __VERIFIER_nondet_int() [L568] COND TRUE \read(tmp___2) [L570] CALL startSystem() [L523] RET systemActive = 1 [L570] startSystem() [L585] CALL timeShift() [L334] COND FALSE !(\read(pumpRunning)) [L341] COND TRUE \read(systemActive) [L343] CALL processEnvironment() [L389] int tmp ; [L392] COND FALSE !(\read(pumpRunning)) [L407] CALL processEnvironment__wrappee__highWaterSensor() [L363] int tmp ; [L366] COND TRUE ! pumpRunning [L368] CALL, EXPR isHighWaterLevel() [L486] int retValue_acc ; [L487] int tmp ; [L488] int tmp___0 ; [L492] CALL, EXPR isHighWaterSensorDry() [L309] int retValue_acc ; [L312] COND TRUE waterLevel < 2 [L313] retValue_acc = 1 [L314] RET return (retValue_acc); [L492] EXPR isHighWaterSensorDry() [L492] tmp = isHighWaterSensorDry() [L494] COND TRUE \read(tmp) [L495] tmp___0 = 0 [L499] retValue_acc = tmp___0 [L500] RET return (retValue_acc); [L368] EXPR isHighWaterLevel() [L368] tmp = isHighWaterLevel() [L370] COND FALSE !(\read(tmp)) [L376] RET, FCALL processEnvironment__wrappee__base() [L407] RET processEnvironment__wrappee__highWaterSensor() [L343] processEnvironment() [L349] CALL __utac_acc__Specification3_spec__1() [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; [L190] CALL, EXPR isMethaneLevelCritical() [L268] int retValue_acc ; [L271] retValue_acc = methaneLevelCritical [L272] RET return (retValue_acc); [L190] EXPR isMethaneLevelCritical() [L190] tmp = isMethaneLevelCritical() [L192] COND FALSE !(\read(tmp)) [L196] CALL, EXPR getWaterLevel() [L300] int retValue_acc ; [L303] retValue_acc = waterLevel [L304] RET return (retValue_acc); [L196] EXPR getWaterLevel() [L196] tmp___0 = getWaterLevel() [L198] COND FALSE, RET !(tmp___0 == 2) [L349] RET __utac_acc__Specification3_spec__1() [L585] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...