./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product64_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_40da42e0-287d-4d12-aac1-e7749c797a8b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_40da42e0-287d-4d12-aac1-e7749c797a8b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_40da42e0-287d-4d12-aac1-e7749c797a8b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_40da42e0-287d-4d12-aac1-e7749c797a8b/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product64_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_40da42e0-287d-4d12-aac1-e7749c797a8b/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_40da42e0-287d-4d12-aac1-e7749c797a8b/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 351e1061dd8393b15ba9fc7223df15ae9d3170ab ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 09:41:17,077 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:41:17,078 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:41:17,087 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:41:17,087 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:41:17,088 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:41:17,089 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:41:17,090 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:41:17,091 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:41:17,092 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:41:17,092 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:41:17,092 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:41:17,093 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:41:17,094 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:41:17,095 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:41:17,095 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:41:17,096 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:41:17,097 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:41:17,099 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:41:17,100 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:41:17,101 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:41:17,102 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:41:17,103 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:41:17,103 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:41:17,104 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:41:17,104 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:41:17,105 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:41:17,105 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:41:17,106 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:41:17,107 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:41:17,107 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:41:17,107 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:41:17,107 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:41:17,108 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:41:17,108 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:41:17,109 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:41:17,109 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_40da42e0-287d-4d12-aac1-e7749c797a8b/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 09:41:17,120 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:41:17,120 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:41:17,121 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:41:17,121 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:41:17,121 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:41:17,122 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 09:41:17,122 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 09:41:17,122 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 09:41:17,122 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 09:41:17,122 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 09:41:17,122 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 09:41:17,122 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:41:17,123 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:41:17,123 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 09:41:17,123 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:41:17,123 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:41:17,123 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:41:17,123 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 09:41:17,123 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 09:41:17,124 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 09:41:17,124 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:41:17,124 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:41:17,124 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 09:41:17,124 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:41:17,124 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 09:41:17,124 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:41:17,125 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:41:17,125 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 09:41:17,125 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:41:17,125 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 09:41:17,125 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 09:41:17,126 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 09:41:17,126 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_40da42e0-287d-4d12-aac1-e7749c797a8b/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 -> 351e1061dd8393b15ba9fc7223df15ae9d3170ab [2018-11-18 09:41:17,148 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:41:17,156 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:41:17,158 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:41:17,159 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:41:17,159 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:41:17,160 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_40da42e0-287d-4d12-aac1-e7749c797a8b/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product64_false-unreach-call_false-termination.cil.c [2018-11-18 09:41:17,195 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_40da42e0-287d-4d12-aac1-e7749c797a8b/bin-2019/uautomizer/data/7dc5b6935/9508faa22a294dbd996e46ec890986a7/FLAGd20b14247 [2018-11-18 09:41:17,628 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:41:17,628 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_40da42e0-287d-4d12-aac1-e7749c797a8b/sv-benchmarks/c/product-lines/minepump_spec3_product64_false-unreach-call_false-termination.cil.c [2018-11-18 09:41:17,637 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_40da42e0-287d-4d12-aac1-e7749c797a8b/bin-2019/uautomizer/data/7dc5b6935/9508faa22a294dbd996e46ec890986a7/FLAGd20b14247 [2018-11-18 09:41:17,645 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_40da42e0-287d-4d12-aac1-e7749c797a8b/bin-2019/uautomizer/data/7dc5b6935/9508faa22a294dbd996e46ec890986a7 [2018-11-18 09:41:17,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:41:17,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:41:17,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:41:17,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:41:17,652 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:41:17,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:41:17" (1/1) ... [2018-11-18 09:41:17,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:41:17, skipping insertion in model container [2018-11-18 09:41:17,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:41:17" (1/1) ... [2018-11-18 09:41:17,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:41:17,695 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:41:17,905 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:41:17,914 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:41:18,016 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:41:18,043 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:41:18,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:41:18 WrapperNode [2018-11-18 09:41:18,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:41:18,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:41:18,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:41:18,044 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:41:18,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:41:18" (1/1) ... [2018-11-18 09:41:18,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:41:18" (1/1) ... [2018-11-18 09:41:18,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:41:18,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:41:18,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:41:18,103 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:41:18,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:41:18" (1/1) ... [2018-11-18 09:41:18,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:41:18" (1/1) ... [2018-11-18 09:41:18,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:41:18" (1/1) ... [2018-11-18 09:41:18,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:41:18" (1/1) ... [2018-11-18 09:41:18,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:41:18" (1/1) ... [2018-11-18 09:41:18,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:41:18" (1/1) ... [2018-11-18 09:41:18,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:41:18" (1/1) ... [2018-11-18 09:41:18,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:41:18,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:41:18,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:41:18,145 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:41:18,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:41:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40da42e0-287d-4d12-aac1-e7749c797a8b/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 09:41:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:41:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:41:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:41:19,004 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:41:19,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:41:19 BoogieIcfgContainer [2018-11-18 09:41:19,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:41:19,005 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 09:41:19,005 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 09:41:19,007 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 09:41:19,008 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:41:19,008 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 09:41:17" (1/3) ... [2018-11-18 09:41:19,009 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1fc4bd54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:41:19, skipping insertion in model container [2018-11-18 09:41:19,009 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:41:19,009 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:41:18" (2/3) ... [2018-11-18 09:41:19,010 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1fc4bd54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:41:19, skipping insertion in model container [2018-11-18 09:41:19,010 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:41:19,010 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:41:19" (3/3) ... [2018-11-18 09:41:19,011 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product64_false-unreach-call_false-termination.cil.c [2018-11-18 09:41:19,043 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:41:19,044 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 09:41:19,044 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 09:41:19,044 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 09:41:19,044 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:41:19,044 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:41:19,044 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 09:41:19,044 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:41:19,044 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 09:41:19,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 331 states. [2018-11-18 09:41:19,085 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 219 [2018-11-18 09:41:19,086 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:41:19,086 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:41:19,092 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:41:19,092 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 09:41:19,092 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 09:41:19,092 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 331 states. [2018-11-18 09:41:19,099 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 219 [2018-11-18 09:41:19,100 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:41:19,100 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:41:19,101 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:41:19,101 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 09:41:19,105 INFO L794 eck$LassoCheckResult]: Stem: 140#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(13);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 79];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 110];#memory_int := #memory_int[#t~string9.base,2 + #t~string9.offset := 0];call #t~string11.base, #t~string11.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string11.base,#t~string11.offset := 79];#memory_int := #memory_int[#t~string11.base,1 + #t~string11.offset := 102];#memory_int := #memory_int[#t~string11.base,2 + #t~string11.offset := 102];#memory_int := #memory_int[#t~string11.base,3 + #t~string11.offset := 0];call #t~string13.base, #t~string13.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string13.base,#t~string13.offset := 44];#memory_int := #memory_int[#t~string13.base,1 + #t~string13.offset := 80];#memory_int := #memory_int[#t~string13.base,2 + #t~string13.offset := 117];#memory_int := #memory_int[#t~string13.base,3 + #t~string13.offset := 109];#memory_int := #memory_int[#t~string13.base,4 + #t~string13.offset := 112];#memory_int := #memory_int[#t~string13.base,5 + #t~string13.offset := 58];#memory_int := #memory_int[#t~string13.base,6 + #t~string13.offset := 0];call #t~string15.base, #t~string15.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string15.base,#t~string15.offset := 79];#memory_int := #memory_int[#t~string15.base,1 + #t~string15.offset := 110];#memory_int := #memory_int[#t~string15.base,2 + #t~string15.offset := 0];call #t~string17.base, #t~string17.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string17.base,#t~string17.offset := 79];#memory_int := #memory_int[#t~string17.base,1 + #t~string17.offset := 102];#memory_int := #memory_int[#t~string17.base,2 + #t~string17.offset := 102];#memory_int := #memory_int[#t~string17.base,3 + #t~string17.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string19.base,#t~string19.offset := 41];#memory_int := #memory_int[#t~string19.base,1 + #t~string19.offset := 32];#memory_int := #memory_int[#t~string19.base,2 + #t~string19.offset := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string21.base,#t~string21.offset := 10];#memory_int := #memory_int[#t~string21.base,1 + #t~string21.offset := 0];call #t~string29.base, #t~string29.offset := #Ultimate.alloc(13);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 44];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 77];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 101];#memory_int := #memory_int[#t~string31.base,3 + #t~string31.offset := 116];#memory_int := #memory_int[#t~string31.base,4 + #t~string31.offset := 104];#memory_int := #memory_int[#t~string31.base,5 + #t~string31.offset := 58];#memory_int := #memory_int[#t~string31.base,6 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 67];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 82];#memory_int := #memory_int[#t~string33.base,2 + #t~string33.offset := 73];#memory_int := #memory_int[#t~string33.base,3 + #t~string33.offset := 84];#memory_int := #memory_int[#t~string33.base,4 + #t~string33.offset := 0];call #t~string35.base, #t~string35.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string35.base,#t~string35.offset := 79];#memory_int := #memory_int[#t~string35.base,1 + #t~string35.offset := 75];#memory_int := #memory_int[#t~string35.base,2 + #t~string35.offset := 0];call #t~string37.base, #t~string37.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string37.base,#t~string37.offset := 41];#memory_int := #memory_int[#t~string37.base,1 + #t~string37.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(21);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(30);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(9);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(25);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 20#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 29#L65true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 254#L58true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 177#L73true main_#t~ret73 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret73;havoc main_#t~ret73; 101#L978true assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 281#L955true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 84#L367-3true [2018-11-18 09:41:19,106 INFO L796 eck$LassoCheckResult]: Loop: 84#L367-3true assume true; 76#L367-1true assume !false; 168#L368true assume test_~splverifierCounter~0 < 4; 139#L369true test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 269#L377true assume !(0 != test_~tmp~6); 273#L377-2true test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 171#L387true assume !(0 != test_~tmp___0~2); 174#L387-2true test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 242#L397true assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet27;havoc test_#t~nondet27; 265#L405true assume !(0 != test_~tmp___1~0); 124#L405-2true assume { :begin_inline_timeShift } true; 34#L98true assume !(0 != ~pumpRunning~0); 24#L98-2true assume !(0 != ~systemActive~0); 247#L105-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret74, __utac_acc__Specification3_spec__1_#t~ret75, __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 304#L470-5true __utac_acc__Specification3_spec__1_#t~ret74 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret74;havoc __utac_acc__Specification3_spec__1_#t~ret74; 278#L1010true assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 258#L1016-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 147#L115true assume { :end_inline_timeShift } true; 84#L367-3true [2018-11-18 09:41:19,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:41:19,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 09:41:19,112 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:41:19,113 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:41:19,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:19,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:41:19,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:41:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:41:19,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:41:19,278 INFO L82 PathProgramCache]: Analyzing trace with hash 664664851, now seen corresponding path program 1 times [2018-11-18 09:41:19,278 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:41:19,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:41:19,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:19,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:41:19,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:41:19,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:41:19,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:41:19,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1847306199, now seen corresponding path program 1 times [2018-11-18 09:41:19,288 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:41:19,288 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:41:19,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:19,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:41:19,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:41:19,420 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 09:41:19,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:41:19,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 09:41:19,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:41:19,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:41:19,529 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 6 states. [2018-11-18 09:41:19,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:41:19,855 INFO L93 Difference]: Finished difference Result 1040 states and 1375 transitions. [2018-11-18 09:41:19,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 09:41:19,858 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1040 states and 1375 transitions. [2018-11-18 09:41:19,871 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 688 [2018-11-18 09:41:19,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1040 states to 1000 states and 1335 transitions. [2018-11-18 09:41:19,894 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1000 [2018-11-18 09:41:19,896 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1000 [2018-11-18 09:41:19,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1000 states and 1335 transitions. [2018-11-18 09:41:19,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:41:19,901 INFO L705 BuchiCegarLoop]: Abstraction has 1000 states and 1335 transitions. [2018-11-18 09:41:19,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states and 1335 transitions. [2018-11-18 09:41:19,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 378. [2018-11-18 09:41:19,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2018-11-18 09:41:19,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 504 transitions. [2018-11-18 09:41:19,955 INFO L728 BuchiCegarLoop]: Abstraction has 378 states and 504 transitions. [2018-11-18 09:41:19,955 INFO L608 BuchiCegarLoop]: Abstraction has 378 states and 504 transitions. [2018-11-18 09:41:19,955 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 09:41:19,956 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 378 states and 504 transitions. [2018-11-18 09:41:19,958 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 261 [2018-11-18 09:41:19,959 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:41:19,959 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:41:19,960 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:41:19,960 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:41:19,960 INFO L794 eck$LassoCheckResult]: Stem: 1588#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(13);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 79];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 110];#memory_int := #memory_int[#t~string9.base,2 + #t~string9.offset := 0];call #t~string11.base, #t~string11.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string11.base,#t~string11.offset := 79];#memory_int := #memory_int[#t~string11.base,1 + #t~string11.offset := 102];#memory_int := #memory_int[#t~string11.base,2 + #t~string11.offset := 102];#memory_int := #memory_int[#t~string11.base,3 + #t~string11.offset := 0];call #t~string13.base, #t~string13.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string13.base,#t~string13.offset := 44];#memory_int := #memory_int[#t~string13.base,1 + #t~string13.offset := 80];#memory_int := #memory_int[#t~string13.base,2 + #t~string13.offset := 117];#memory_int := #memory_int[#t~string13.base,3 + #t~string13.offset := 109];#memory_int := #memory_int[#t~string13.base,4 + #t~string13.offset := 112];#memory_int := #memory_int[#t~string13.base,5 + #t~string13.offset := 58];#memory_int := #memory_int[#t~string13.base,6 + #t~string13.offset := 0];call #t~string15.base, #t~string15.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string15.base,#t~string15.offset := 79];#memory_int := #memory_int[#t~string15.base,1 + #t~string15.offset := 110];#memory_int := #memory_int[#t~string15.base,2 + #t~string15.offset := 0];call #t~string17.base, #t~string17.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string17.base,#t~string17.offset := 79];#memory_int := #memory_int[#t~string17.base,1 + #t~string17.offset := 102];#memory_int := #memory_int[#t~string17.base,2 + #t~string17.offset := 102];#memory_int := #memory_int[#t~string17.base,3 + #t~string17.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string19.base,#t~string19.offset := 41];#memory_int := #memory_int[#t~string19.base,1 + #t~string19.offset := 32];#memory_int := #memory_int[#t~string19.base,2 + #t~string19.offset := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string21.base,#t~string21.offset := 10];#memory_int := #memory_int[#t~string21.base,1 + #t~string21.offset := 0];call #t~string29.base, #t~string29.offset := #Ultimate.alloc(13);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 44];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 77];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 101];#memory_int := #memory_int[#t~string31.base,3 + #t~string31.offset := 116];#memory_int := #memory_int[#t~string31.base,4 + #t~string31.offset := 104];#memory_int := #memory_int[#t~string31.base,5 + #t~string31.offset := 58];#memory_int := #memory_int[#t~string31.base,6 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 67];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 82];#memory_int := #memory_int[#t~string33.base,2 + #t~string33.offset := 73];#memory_int := #memory_int[#t~string33.base,3 + #t~string33.offset := 84];#memory_int := #memory_int[#t~string33.base,4 + #t~string33.offset := 0];call #t~string35.base, #t~string35.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string35.base,#t~string35.offset := 79];#memory_int := #memory_int[#t~string35.base,1 + #t~string35.offset := 75];#memory_int := #memory_int[#t~string35.base,2 + #t~string35.offset := 0];call #t~string37.base, #t~string37.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string37.base,#t~string37.offset := 41];#memory_int := #memory_int[#t~string37.base,1 + #t~string37.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(21);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(30);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(9);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(25);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1422#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 1423#L65 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1440#L58 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1613#L73 main_#t~ret73 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret73;havoc main_#t~ret73; 1548#L978 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 1549#L955 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1529#L367-3 [2018-11-18 09:41:19,960 INFO L796 eck$LassoCheckResult]: Loop: 1529#L367-3 assume true; 1515#L367-1 assume !false; 1516#L368 assume test_~splverifierCounter~0 < 4; 1586#L369 test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 1587#L377 assume !(0 != test_~tmp~6); 1607#L377-2 test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 1609#L387 assume !(0 != test_~tmp___0~2); 1585#L387-2 test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 1611#L397 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet27;havoc test_#t~nondet27; 1670#L405 assume !(0 != test_~tmp___1~0); 1568#L405-2 assume { :begin_inline_timeShift } true; 1450#L98 assume !(0 != ~pumpRunning~0); 1431#L98-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1432#L182 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret5, isMethaneAlarm_~retValue_acc~2;havoc isMethaneAlarm_~retValue_acc~2;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1584#L470 isMethaneAlarm_#t~ret5 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2 := isMethaneAlarm_#t~ret5;havoc isMethaneAlarm_#t~ret5;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~2; 1654#L243 processEnvironment_#t~ret3 := isMethaneAlarm_#res;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2 := processEnvironment_#t~ret3;havoc processEnvironment_#t~ret3; 1391#L186 assume 0 != processEnvironment_~tmp~2;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1392#L233-1 assume { :end_inline_deactivatePump } true; 1579#L182-1 assume { :end_inline_processEnvironment } true; 1580#L105-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret74, __utac_acc__Specification3_spec__1_#t~ret75, __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1679#L470-5 __utac_acc__Specification3_spec__1_#t~ret74 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret74;havoc __utac_acc__Specification3_spec__1_#t~ret74; 1694#L1010 assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 1614#L1016-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1591#L115 assume { :end_inline_timeShift } true; 1529#L367-3 [2018-11-18 09:41:19,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:41:19,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 09:41:19,961 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:41:19,961 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:41:19,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:19,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:41:19,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:41:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:41:20,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:41:20,012 INFO L82 PathProgramCache]: Analyzing trace with hash 471303708, now seen corresponding path program 1 times [2018-11-18 09:41:20,013 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:41:20,013 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:41:20,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:20,014 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:41:20,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:41:20,027 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 09:41:20,027 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:41:20,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:41:20,028 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:41:20,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:41:20,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:41:20,029 INFO L87 Difference]: Start difference. First operand 378 states and 504 transitions. cyclomatic complexity: 129 Second operand 3 states. [2018-11-18 09:41:20,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:41:20,138 INFO L93 Difference]: Finished difference Result 389 states and 492 transitions. [2018-11-18 09:41:20,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:41:20,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 389 states and 492 transitions. [2018-11-18 09:41:20,142 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 275 [2018-11-18 09:41:20,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 389 states to 389 states and 492 transitions. [2018-11-18 09:41:20,144 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 389 [2018-11-18 09:41:20,144 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 389 [2018-11-18 09:41:20,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 389 states and 492 transitions. [2018-11-18 09:41:20,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:41:20,146 INFO L705 BuchiCegarLoop]: Abstraction has 389 states and 492 transitions. [2018-11-18 09:41:20,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states and 492 transitions. [2018-11-18 09:41:20,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2018-11-18 09:41:20,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2018-11-18 09:41:20,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 492 transitions. [2018-11-18 09:41:20,158 INFO L728 BuchiCegarLoop]: Abstraction has 389 states and 492 transitions. [2018-11-18 09:41:20,158 INFO L608 BuchiCegarLoop]: Abstraction has 389 states and 492 transitions. [2018-11-18 09:41:20,158 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 09:41:20,158 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 389 states and 492 transitions. [2018-11-18 09:41:20,160 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 275 [2018-11-18 09:41:20,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:41:20,160 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:41:20,161 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:41:20,161 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 09:41:20,162 INFO L794 eck$LassoCheckResult]: Stem: 2328#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(13);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 79];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 110];#memory_int := #memory_int[#t~string9.base,2 + #t~string9.offset := 0];call #t~string11.base, #t~string11.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string11.base,#t~string11.offset := 79];#memory_int := #memory_int[#t~string11.base,1 + #t~string11.offset := 102];#memory_int := #memory_int[#t~string11.base,2 + #t~string11.offset := 102];#memory_int := #memory_int[#t~string11.base,3 + #t~string11.offset := 0];call #t~string13.base, #t~string13.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string13.base,#t~string13.offset := 44];#memory_int := #memory_int[#t~string13.base,1 + #t~string13.offset := 80];#memory_int := #memory_int[#t~string13.base,2 + #t~string13.offset := 117];#memory_int := #memory_int[#t~string13.base,3 + #t~string13.offset := 109];#memory_int := #memory_int[#t~string13.base,4 + #t~string13.offset := 112];#memory_int := #memory_int[#t~string13.base,5 + #t~string13.offset := 58];#memory_int := #memory_int[#t~string13.base,6 + #t~string13.offset := 0];call #t~string15.base, #t~string15.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string15.base,#t~string15.offset := 79];#memory_int := #memory_int[#t~string15.base,1 + #t~string15.offset := 110];#memory_int := #memory_int[#t~string15.base,2 + #t~string15.offset := 0];call #t~string17.base, #t~string17.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string17.base,#t~string17.offset := 79];#memory_int := #memory_int[#t~string17.base,1 + #t~string17.offset := 102];#memory_int := #memory_int[#t~string17.base,2 + #t~string17.offset := 102];#memory_int := #memory_int[#t~string17.base,3 + #t~string17.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string19.base,#t~string19.offset := 41];#memory_int := #memory_int[#t~string19.base,1 + #t~string19.offset := 32];#memory_int := #memory_int[#t~string19.base,2 + #t~string19.offset := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string21.base,#t~string21.offset := 10];#memory_int := #memory_int[#t~string21.base,1 + #t~string21.offset := 0];call #t~string29.base, #t~string29.offset := #Ultimate.alloc(13);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 44];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 77];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 101];#memory_int := #memory_int[#t~string31.base,3 + #t~string31.offset := 116];#memory_int := #memory_int[#t~string31.base,4 + #t~string31.offset := 104];#memory_int := #memory_int[#t~string31.base,5 + #t~string31.offset := 58];#memory_int := #memory_int[#t~string31.base,6 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 67];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 82];#memory_int := #memory_int[#t~string33.base,2 + #t~string33.offset := 73];#memory_int := #memory_int[#t~string33.base,3 + #t~string33.offset := 84];#memory_int := #memory_int[#t~string33.base,4 + #t~string33.offset := 0];call #t~string35.base, #t~string35.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string35.base,#t~string35.offset := 79];#memory_int := #memory_int[#t~string35.base,1 + #t~string35.offset := 75];#memory_int := #memory_int[#t~string35.base,2 + #t~string35.offset := 0];call #t~string37.base, #t~string37.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string37.base,#t~string37.offset := 41];#memory_int := #memory_int[#t~string37.base,1 + #t~string37.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(21);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(30);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(9);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(25);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2187#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 2188#L65 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2204#L58 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 2357#L73 main_#t~ret73 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret73;havoc main_#t~ret73; 2288#L978 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 2289#L955 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2419#L367-3 [2018-11-18 09:41:20,165 INFO L796 eck$LassoCheckResult]: Loop: 2419#L367-3 assume true; 2530#L367-1 assume !false; 2529#L368 assume test_~splverifierCounter~0 < 4; 2326#L369 test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 2327#L377 assume !(0 != test_~tmp~6); 2350#L377-2 test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 2354#L387 assume !(0 != test_~tmp___0~2); 2325#L387-2 test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 2355#L397 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2310#L350 assume { :end_inline_startSystem } true; 2311#L405-2 assume { :begin_inline_timeShift } true; 2212#L98 assume !(0 != ~pumpRunning~0); 2195#L98-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 2196#L182 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret2, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 2324#L156-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 2273#L130-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret22, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 2274#L510-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 2296#L515-3 isHighWaterLevel_#t~ret22 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret22;havoc isHighWaterLevel_#t~ret22; 2256#L301-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 2255#L301-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 2216#L307-3 processEnvironment__wrappee__highWaterSensor_#t~ret1 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret1; 2217#L134-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 2372#L122-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2258#L130-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2270#L156-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2320#L182-1 assume { :end_inline_processEnvironment } true; 2321#L105-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret74, __utac_acc__Specification3_spec__1_#t~ret75, __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 2538#L470-5 __utac_acc__Specification3_spec__1_#t~ret74 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret74;havoc __utac_acc__Specification3_spec__1_#t~ret74; 2534#L1010 assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 2532#L1016-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2531#L115 assume { :end_inline_timeShift } true; 2419#L367-3 [2018-11-18 09:41:20,165 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:41:20,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 09:41:20,166 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:41:20,166 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:41:20,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:20,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:41:20,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:41:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:41:20,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:41:20,204 INFO L82 PathProgramCache]: Analyzing trace with hash 844121287, now seen corresponding path program 1 times [2018-11-18 09:41:20,204 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:41:20,204 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:41:20,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:20,205 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:41:20,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:41:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:41:20,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:41:20,217 INFO L82 PathProgramCache]: Analyzing trace with hash 272135811, now seen corresponding path program 1 times [2018-11-18 09:41:20,217 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:41:20,217 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:41:20,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:20,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:41:20,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:41:20,297 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 09:41:20,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:41:20,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:41:20,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:41:20,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:41:20,409 INFO L87 Difference]: Start difference. First operand 389 states and 492 transitions. cyclomatic complexity: 106 Second operand 5 states. [2018-11-18 09:41:20,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:41:20,593 INFO L93 Difference]: Finished difference Result 1335 states and 1678 transitions. [2018-11-18 09:41:20,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 09:41:20,594 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1335 states and 1678 transitions. [2018-11-18 09:41:20,600 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 984 [2018-11-18 09:41:20,604 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1335 states to 1335 states and 1678 transitions. [2018-11-18 09:41:20,604 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1335 [2018-11-18 09:41:20,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1335 [2018-11-18 09:41:20,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1335 states and 1678 transitions. [2018-11-18 09:41:20,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:41:20,606 INFO L705 BuchiCegarLoop]: Abstraction has 1335 states and 1678 transitions. [2018-11-18 09:41:20,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states and 1678 transitions. [2018-11-18 09:41:20,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 771. [2018-11-18 09:41:20,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 771 states. [2018-11-18 09:41:20,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 965 transitions. [2018-11-18 09:41:20,623 INFO L728 BuchiCegarLoop]: Abstraction has 771 states and 965 transitions. [2018-11-18 09:41:20,623 INFO L608 BuchiCegarLoop]: Abstraction has 771 states and 965 transitions. [2018-11-18 09:41:20,623 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 09:41:20,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 771 states and 965 transitions. [2018-11-18 09:41:20,626 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 550 [2018-11-18 09:41:20,626 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:41:20,626 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:41:20,627 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:41:20,627 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:41:20,627 INFO L794 eck$LassoCheckResult]: Stem: 4075#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(13);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 79];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 110];#memory_int := #memory_int[#t~string9.base,2 + #t~string9.offset := 0];call #t~string11.base, #t~string11.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string11.base,#t~string11.offset := 79];#memory_int := #memory_int[#t~string11.base,1 + #t~string11.offset := 102];#memory_int := #memory_int[#t~string11.base,2 + #t~string11.offset := 102];#memory_int := #memory_int[#t~string11.base,3 + #t~string11.offset := 0];call #t~string13.base, #t~string13.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string13.base,#t~string13.offset := 44];#memory_int := #memory_int[#t~string13.base,1 + #t~string13.offset := 80];#memory_int := #memory_int[#t~string13.base,2 + #t~string13.offset := 117];#memory_int := #memory_int[#t~string13.base,3 + #t~string13.offset := 109];#memory_int := #memory_int[#t~string13.base,4 + #t~string13.offset := 112];#memory_int := #memory_int[#t~string13.base,5 + #t~string13.offset := 58];#memory_int := #memory_int[#t~string13.base,6 + #t~string13.offset := 0];call #t~string15.base, #t~string15.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string15.base,#t~string15.offset := 79];#memory_int := #memory_int[#t~string15.base,1 + #t~string15.offset := 110];#memory_int := #memory_int[#t~string15.base,2 + #t~string15.offset := 0];call #t~string17.base, #t~string17.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string17.base,#t~string17.offset := 79];#memory_int := #memory_int[#t~string17.base,1 + #t~string17.offset := 102];#memory_int := #memory_int[#t~string17.base,2 + #t~string17.offset := 102];#memory_int := #memory_int[#t~string17.base,3 + #t~string17.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string19.base,#t~string19.offset := 41];#memory_int := #memory_int[#t~string19.base,1 + #t~string19.offset := 32];#memory_int := #memory_int[#t~string19.base,2 + #t~string19.offset := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string21.base,#t~string21.offset := 10];#memory_int := #memory_int[#t~string21.base,1 + #t~string21.offset := 0];call #t~string29.base, #t~string29.offset := #Ultimate.alloc(13);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 44];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 77];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 101];#memory_int := #memory_int[#t~string31.base,3 + #t~string31.offset := 116];#memory_int := #memory_int[#t~string31.base,4 + #t~string31.offset := 104];#memory_int := #memory_int[#t~string31.base,5 + #t~string31.offset := 58];#memory_int := #memory_int[#t~string31.base,6 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 67];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 82];#memory_int := #memory_int[#t~string33.base,2 + #t~string33.offset := 73];#memory_int := #memory_int[#t~string33.base,3 + #t~string33.offset := 84];#memory_int := #memory_int[#t~string33.base,4 + #t~string33.offset := 0];call #t~string35.base, #t~string35.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string35.base,#t~string35.offset := 79];#memory_int := #memory_int[#t~string35.base,1 + #t~string35.offset := 75];#memory_int := #memory_int[#t~string35.base,2 + #t~string35.offset := 0];call #t~string37.base, #t~string37.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string37.base,#t~string37.offset := 41];#memory_int := #memory_int[#t~string37.base,1 + #t~string37.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(21);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(30);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(9);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(25);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 3929#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 3930#L65 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3944#L58 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 4107#L73 main_#t~ret73 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret73;havoc main_#t~ret73; 4032#L978 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 4033#L955 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 4182#L367-3 [2018-11-18 09:41:20,627 INFO L796 eck$LassoCheckResult]: Loop: 4182#L367-3 assume true; 4567#L367-1 assume !false; 4565#L368 assume test_~splverifierCounter~0 < 4; 4566#L369 test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 4631#L377 assume !(0 != test_~tmp~6); 4626#L377-2 test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 4618#L387 assume !(0 != test_~tmp___0~2); 4615#L387-2 test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 4612#L397 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 4610#L350 assume { :end_inline_startSystem } true; 4608#L405-2 assume { :begin_inline_timeShift } true; 4607#L98 assume !(0 != ~pumpRunning~0); 4393#L98-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 4569#L182 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret2, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 4348#L156-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 4574#L130-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret22, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 4570#L510-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 4394#L515-3 isHighWaterLevel_#t~ret22 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret22;havoc isHighWaterLevel_#t~ret22; 4391#L301-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 4389#L301-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 4375#L307-3 processEnvironment__wrappee__highWaterSensor_#t~ret1 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret1; 4321#L134-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 4123#L122-6 assume { :end_inline_processEnvironment__wrappee__base } true; 4000#L130-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4012#L156-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 4650#L182-1 assume { :end_inline_processEnvironment } true; 4596#L105-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret74, __utac_acc__Specification3_spec__1_#t~ret75, __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 4595#L470-5 __utac_acc__Specification3_spec__1_#t~ret74 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret74;havoc __utac_acc__Specification3_spec__1_#t~ret74; 4594#L1010 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~11);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 4593#L502 __utac_acc__Specification3_spec__1_#t~ret75 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3 := __utac_acc__Specification3_spec__1_#t~ret75;havoc __utac_acc__Specification3_spec__1_#t~ret75; 4591#L1016 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3); 4589#L1016-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 4588#L115 assume { :end_inline_timeShift } true; 4182#L367-3 [2018-11-18 09:41:20,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:41:20,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2018-11-18 09:41:20,628 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:41:20,628 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:41:20,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:20,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:41:20,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:41:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:41:20,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:41:20,660 INFO L82 PathProgramCache]: Analyzing trace with hash -547002854, now seen corresponding path program 1 times [2018-11-18 09:41:20,660 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:41:20,660 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:41:20,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:20,661 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:41:20,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:41:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:41:20,693 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:41:20,693 INFO L82 PathProgramCache]: Analyzing trace with hash -469231402, now seen corresponding path program 1 times [2018-11-18 09:41:20,693 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:41:20,693 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:41:20,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:20,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:41:20,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:41:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:41:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:41:20,841 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2018-11-18 09:42:20,149 WARN L180 SmtUtils]: Spent 59.27 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 09:42:54,118 WARN L180 SmtUtils]: Spent 33.97 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 09:42:54,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 09:42:54 BoogieIcfgContainer [2018-11-18 09:42:54,188 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 09:42:54,188 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:42:54,188 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:42:54,189 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:42:54,189 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:41:19" (3/4) ... [2018-11-18 09:42:54,193 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 09:42:54,243 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_40da42e0-287d-4d12-aac1-e7749c797a8b/bin-2019/uautomizer/witness.graphml [2018-11-18 09:42:54,243 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:42:54,243 INFO L168 Benchmark]: Toolchain (without parser) took 96595.65 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 283.1 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -160.5 MB). Peak memory consumption was 122.6 MB. Max. memory is 11.5 GB. [2018-11-18 09:42:54,244 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:42:54,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -139.1 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:42:54,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:42:54,246 INFO L168 Benchmark]: Boogie Preprocessor took 41.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:42:54,247 INFO L168 Benchmark]: RCFGBuilder took 860.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 987.1 MB in the end (delta: 96.9 MB). Peak memory consumption was 96.9 MB. Max. memory is 11.5 GB. [2018-11-18 09:42:54,247 INFO L168 Benchmark]: BuchiAutomizer took 95182.92 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 987.1 MB in the beginning and 1.1 GB in the end (delta: -136.3 MB). Peak memory consumption was 328.2 MB. Max. memory is 11.5 GB. [2018-11-18 09:42:54,247 INFO L168 Benchmark]: Witness Printer took 54.48 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:42:54,249 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 394.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -139.1 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 860.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 987.1 MB in the end (delta: 96.9 MB). Peak memory consumption was 96.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 95182.92 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 987.1 MB in the beginning and 1.1 GB in the end (delta: -136.3 MB). Peak memory consumption was 328.2 MB. Max. memory is 11.5 GB. * Witness Printer took 54.48 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 771 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 95.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 94.2s. Construction of modules took 0.4s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1186 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 771 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1261 SDtfs, 3662 SDslu, 4151 SDs, 0 SdLazy, 260 SolverSat, 101 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 367]: 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@e7e07fe=0, "Pump(System:"=28, "libacc.c"=0, "Off"=26, methaneLevelCritical=0, retValue_acc=0, "i > 0 && i <= this->argsCount"=0, "CRIT"=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11d4e2f1=0, tmp=0, "i > 0 && i <= this->argsCount"=8, "__utac__get_this_argtype"=0, tmp___1=0, "Env(Water:%i"=18, cleanupTimeShifts=4, tmp=1, "Off"=22, waterLevel=1, "__utac__get_this_arg"=37, "libacc.c"=35, \result=1, head=0, pumpRunning=0, retValue_acc=1, "libacc.c"=12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2dbed0c4=0, "__utac__get_this_argtype"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@494327d1=154, "OK"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@def93c1=0, "CRIT"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fc361f5=0, \result=1, "__utac__get_this_arg"=34, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f6a8bb5=0, tmp=1, retValue_acc=1, tmp___0=0, "On"=27, "i > 0 && i <= this->argsCount"=36, tmp=0, head=0, tmp=0, tmp=0, ")"=0, ",Meth:"=0, ",Pump:"=24, "On"=23, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=11, ")"=14, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57169879=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74fc44d=0, "libacc.c"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7caa575=0, "libacc.c"=0, tmp=0, ",Meth:"=17, tmp___0=1, "\n"=0, "Env(Water:%i"=0, NULL=0, systemActive=1, "libacc.c"=38, \result=1, retValue_acc=0, \result=0, "__utac__get_this_arg"=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, retValue_acc=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3fdf7f7c=0, "\n"=19, ") "=0, "libacc.c"=31, "On"=0, "OK"=15, "Off"=0, "__utac__get_this_argtype"=29, retValue_acc=1, tmp___2=154, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23370d2f=0, splverifierCounter=0, "i > 0 && i <= this->argsCount"=0, "On"=0, "Pump(System:"=0, \result=0, "__utac__get_this_argtype"=39, tmp___1=0, ") "=20, ",Pump:"=0, "Off"=0, "i > 0 && i <= this->argsCount"=33} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 367]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L261] FCALL "Pump(System:" [L265] FCALL "On" [L269] FCALL "Off" [L273] FCALL ",Pump:" [L277] FCALL "On" [L281] FCALL "Off" [L285] FCALL ") " [L287] FCALL "\n" [L479] FCALL "Env(Water:%i" [L480] FCALL ",Meth:" [L484] FCALL "CRIT" [L488] FCALL "OK" [L492] FCALL ")" [L827] FCALL "i > 0 && i <= this->argsCount" [L827] FCALL "libacc.c" [L828] FCALL "__utac__get_this_arg" [L834] FCALL "i > 0 && i <= this->argsCount" [L834] FCALL "libacc.c" [L835] FCALL "__utac__get_this_arg" [L873] FCALL "i > 0 && i <= this->argsCount" [L873] FCALL "libacc.c" [L874] FCALL "__utac__get_this_argtype" [L880] FCALL "i > 0 && i <= this->argsCount" [L880] FCALL "libacc.c" [L881] FCALL "__utac__get_this_argtype" [L90] int pumpRunning = 0; [L91] int systemActive = 1; [L427] int waterLevel = 1; [L428] int methaneLevelCritical = 0; [L896] int cleanupTimeShifts = 4; [L699] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L969] int retValue_acc ; [L970] int tmp ; [L974] FCALL select_helpers() [L975] FCALL select_features() [L976] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] RET return (retValue_acc); [L976] EXPR valid_product() [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) [L980] FCALL setup() [L981] CALL runTest() [L963] CALL test() [L358] int splverifierCounter ; [L359] int tmp ; [L360] int tmp___0 ; [L361] int tmp___1 ; [L362] int tmp___2 ; [L365] splverifierCounter = 0 Loop: [L367] COND TRUE 1 [L369] COND TRUE splverifierCounter < 4 [L375] tmp = __VERIFIER_nondet_int() [L377] COND FALSE !(\read(tmp)) [L385] tmp___0 = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp___0)) [L395] tmp___2 = __VERIFIER_nondet_int() [L397] COND TRUE \read(tmp___2) [L399] CALL startSystem() [L349] RET systemActive = 1 [L399] startSystem() [L414] CALL timeShift() [L98] COND FALSE !(\read(pumpRunning)) [L105] COND TRUE \read(systemActive) [L107] CALL processEnvironment() [L179] int tmp ; [L182] COND FALSE !(\read(pumpRunning)) [L197] CALL processEnvironment__wrappee__methaneQuery() [L153] int tmp ; [L156] COND FALSE !(\read(pumpRunning)) [L171] CALL processEnvironment__wrappee__highWaterSensor() [L127] int tmp ; [L130] COND TRUE ! pumpRunning [L132] CALL, EXPR isHighWaterLevel() [L293] int retValue_acc ; [L294] int tmp ; [L295] int tmp___0 ; [L299] CALL, EXPR isHighWaterSensorDry() [L507] int retValue_acc ; [L510] COND TRUE waterLevel < 2 [L511] retValue_acc = 1 [L512] RET return (retValue_acc); [L299] EXPR isHighWaterSensorDry() [L299] tmp = isHighWaterSensorDry() [L301] COND TRUE \read(tmp) [L302] tmp___0 = 0 [L306] retValue_acc = tmp___0 [L307] RET return (retValue_acc); [L132] EXPR isHighWaterLevel() [L132] tmp = isHighWaterLevel() [L134] COND FALSE !(\read(tmp)) [L140] RET, FCALL processEnvironment__wrappee__base() [L171] RET processEnvironment__wrappee__highWaterSensor() [L197] RET processEnvironment__wrappee__methaneQuery() [L107] processEnvironment() [L113] CALL __utac_acc__Specification3_spec__1() [L1002] int tmp ; [L1003] int tmp___0 ; [L1004] int tmp___1 ; [L1008] CALL, EXPR isMethaneLevelCritical() [L466] int retValue_acc ; [L469] retValue_acc = methaneLevelCritical [L470] RET return (retValue_acc); [L1008] EXPR isMethaneLevelCritical() [L1008] tmp = isMethaneLevelCritical() [L1010] COND FALSE !(\read(tmp)) [L1014] CALL, EXPR getWaterLevel() [L498] int retValue_acc ; [L501] retValue_acc = waterLevel [L502] RET return (retValue_acc); [L1014] EXPR getWaterLevel() [L1014] tmp___0 = getWaterLevel() [L1016] COND FALSE, RET !(tmp___0 == 2) [L113] RET __utac_acc__Specification3_spec__1() [L414] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...