./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product16_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_89e51681-34a4-4607-9200-d85612d5295d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_89e51681-34a4-4607-9200-d85612d5295d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_89e51681-34a4-4607-9200-d85612d5295d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_89e51681-34a4-4607-9200-d85612d5295d/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product16_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_89e51681-34a4-4607-9200-d85612d5295d/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_89e51681-34a4-4607-9200-d85612d5295d/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 6e1f2dc26efb42c99cbde86e46132dc40752e9dc .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 12:09:11,493 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:09:11,494 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:09:11,500 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:09:11,501 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:09:11,501 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:09:11,502 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:09:11,503 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:09:11,504 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:09:11,504 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:09:11,505 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:09:11,505 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:09:11,506 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:09:11,506 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:09:11,507 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:09:11,508 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:09:11,508 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:09:11,509 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:09:11,510 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:09:11,511 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:09:11,512 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:09:11,513 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:09:11,514 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:09:11,514 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:09:11,514 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:09:11,515 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:09:11,516 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:09:11,516 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:09:11,517 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:09:11,517 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:09:11,518 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:09:11,518 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:09:11,518 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:09:11,518 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:09:11,519 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:09:11,519 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:09:11,520 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_89e51681-34a4-4607-9200-d85612d5295d/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 12:09:11,530 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:09:11,530 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:09:11,531 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:09:11,531 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:09:11,531 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:09:11,532 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 12:09:11,532 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 12:09:11,532 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 12:09:11,532 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 12:09:11,532 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 12:09:11,532 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 12:09:11,533 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:09:11,533 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:09:11,533 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 12:09:11,533 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:09:11,533 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:09:11,533 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:09:11,533 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 12:09:11,534 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 12:09:11,534 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 12:09:11,534 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:09:11,534 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:09:11,534 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 12:09:11,534 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:09:11,534 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 12:09:11,535 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:09:11,535 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:09:11,535 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 12:09:11,535 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:09:11,535 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:09:11,535 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 12:09:11,536 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 12:09:11,536 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_89e51681-34a4-4607-9200-d85612d5295d/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 -> 6e1f2dc26efb42c99cbde86e46132dc40752e9dc [2018-11-18 12:09:11,560 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:09:11,569 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:09:11,572 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:09:11,573 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:09:11,573 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:09:11,574 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_89e51681-34a4-4607-9200-d85612d5295d/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product16_true-unreach-call_false-termination.cil.c [2018-11-18 12:09:11,618 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89e51681-34a4-4607-9200-d85612d5295d/bin-2019/uautomizer/data/1429a9617/3ebe332eea9648509e68f2a7f250a751/FLAG768bb0230 [2018-11-18 12:09:11,982 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:09:11,982 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_89e51681-34a4-4607-9200-d85612d5295d/sv-benchmarks/c/product-lines/minepump_spec5_product16_true-unreach-call_false-termination.cil.c [2018-11-18 12:09:11,990 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89e51681-34a4-4607-9200-d85612d5295d/bin-2019/uautomizer/data/1429a9617/3ebe332eea9648509e68f2a7f250a751/FLAG768bb0230 [2018-11-18 12:09:12,377 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_89e51681-34a4-4607-9200-d85612d5295d/bin-2019/uautomizer/data/1429a9617/3ebe332eea9648509e68f2a7f250a751 [2018-11-18 12:09:12,380 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:09:12,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:09:12,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:09:12,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:09:12,384 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:09:12,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:09:12" (1/1) ... [2018-11-18 12:09:12,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa108ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:09:12, skipping insertion in model container [2018-11-18 12:09:12,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:09:12" (1/1) ... [2018-11-18 12:09:12,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:09:12,427 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:09:12,615 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:09:12,621 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:09:12,708 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:09:12,722 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:09:12,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:09:12 WrapperNode [2018-11-18 12:09:12,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:09:12,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:09:12,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:09:12,723 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:09:12,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:09:12" (1/1) ... [2018-11-18 12:09:12,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:09:12" (1/1) ... [2018-11-18 12:09:12,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:09:12,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:09:12,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:09:12,758 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:09:12,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:09:12" (1/1) ... [2018-11-18 12:09:12,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:09:12" (1/1) ... [2018-11-18 12:09:12,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:09:12" (1/1) ... [2018-11-18 12:09:12,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:09:12" (1/1) ... [2018-11-18 12:09:12,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:09:12" (1/1) ... [2018-11-18 12:09:12,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:09:12" (1/1) ... [2018-11-18 12:09:12,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:09:12" (1/1) ... [2018-11-18 12:09:12,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:09:12,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:09:12,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:09:12,779 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:09:12,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:09:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89e51681-34a4-4607-9200-d85612d5295d/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 12:09:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:09:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:09:12,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:09:13,282 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:09:13,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:09:13 BoogieIcfgContainer [2018-11-18 12:09:13,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:09:13,283 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 12:09:13,283 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 12:09:13,286 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 12:09:13,286 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:09:13,286 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 12:09:12" (1/3) ... [2018-11-18 12:09:13,287 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6aea07b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 12:09:13, skipping insertion in model container [2018-11-18 12:09:13,287 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:09:13,288 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:09:12" (2/3) ... [2018-11-18 12:09:13,288 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6aea07b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 12:09:13, skipping insertion in model container [2018-11-18 12:09:13,288 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:09:13,288 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:09:13" (3/3) ... [2018-11-18 12:09:13,290 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product16_true-unreach-call_false-termination.cil.c [2018-11-18 12:09:13,324 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:09:13,325 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 12:09:13,325 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 12:09:13,325 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 12:09:13,325 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:09:13,325 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:09:13,325 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 12:09:13,326 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:09:13,326 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 12:09:13,339 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2018-11-18 12:09:13,361 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2018-11-18 12:09:13,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:09:13,361 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:09:13,367 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:09:13,367 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:09:13,368 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 12:09:13,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2018-11-18 12:09:13,371 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2018-11-18 12:09:13,371 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:09:13,371 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:09:13,371 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:09:13,371 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:09:13,375 INFO L794 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 110];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 44];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 80];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 117];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 109];#memory_int := #memory_int[#t~string50.base,4 + #t~string50.offset := 112];#memory_int := #memory_int[#t~string50.base,5 + #t~string50.offset := 58];#memory_int := #memory_int[#t~string50.base,6 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 110];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,3 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 41];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 32];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 10];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(13);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 44];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 77];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 101];#memory_int := #memory_int[#t~string66.base,3 + #t~string66.offset := 116];#memory_int := #memory_int[#t~string66.base,4 + #t~string66.offset := 104];#memory_int := #memory_int[#t~string66.base,5 + #t~string66.offset := 58];#memory_int := #memory_int[#t~string66.base,6 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 67];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 82];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 73];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 84];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 79];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 75];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 41];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 10#L585true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 71#L578true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 28#L593true main_#t~ret38 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret38;havoc main_#t~ret38; 33#L549true assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 44#L521true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 110#L415true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 111#L800-3true [2018-11-18 12:09:13,375 INFO L796 eck$LassoCheckResult]: Loop: 111#L800-3true assume true; 8#L800-1true assume !false; 73#L801true assume test_~splverifierCounter~0 < 4; 40#L802true test_~tmp~7 := test_#t~nondet59;havoc test_#t~nondet59; 60#L810true assume !(0 != test_~tmp~7); 47#L810-2true test_~tmp___0~1 := test_#t~nondet60;havoc test_#t~nondet60; 74#L820true assume !(0 != test_~tmp___0~1); 77#L820-2true test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 11#L830true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 12#L786true assume { :end_inline_startSystem } true; 13#L838-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret35;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 104#L726true __utac_acc__Specification5_spec__2_#t~ret35 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret35;havoc __utac_acc__Specification5_spec__2_#t~ret35; 21#L425true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 113#L624true assume !(0 != ~pumpRunning~0); 100#L624-2true assume !(0 != ~systemActive~0); 59#L631-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret36, __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 50#L934true __utac_acc__Specification5_spec__3_#t~ret36 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret36;havoc __utac_acc__Specification5_spec__3_#t~ret36; 20#L436true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 22#L436-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 83#L641true assume { :end_inline_timeShift } true; 111#L800-3true [2018-11-18 12:09:13,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:09:13,380 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 12:09:13,382 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:09:13,383 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:09:13,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:09:13,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:09:13,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:09:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:09:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:09:13,532 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:09:13,533 INFO L82 PathProgramCache]: Analyzing trace with hash 2054946235, now seen corresponding path program 1 times [2018-11-18 12:09:13,533 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:09:13,533 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:09:13,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:09:13,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:09:13,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:09:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:09:13,568 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 12:09:13,569 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:09:13,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:09:13,572 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:09:13,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:09:13,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:09:13,582 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 3 states. [2018-11-18 12:09:13,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:09:13,623 INFO L93 Difference]: Finished difference Result 210 states and 266 transitions. [2018-11-18 12:09:13,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:09:13,625 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 266 transitions. [2018-11-18 12:09:13,630 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 136 [2018-11-18 12:09:13,636 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 190 states and 245 transitions. [2018-11-18 12:09:13,637 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 190 [2018-11-18 12:09:13,637 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 190 [2018-11-18 12:09:13,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 190 states and 245 transitions. [2018-11-18 12:09:13,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 12:09:13,639 INFO L705 BuchiCegarLoop]: Abstraction has 190 states and 245 transitions. [2018-11-18 12:09:13,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states and 245 transitions. [2018-11-18 12:09:13,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2018-11-18 12:09:13,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2018-11-18 12:09:13,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 241 transitions. [2018-11-18 12:09:13,665 INFO L728 BuchiCegarLoop]: Abstraction has 187 states and 241 transitions. [2018-11-18 12:09:13,665 INFO L608 BuchiCegarLoop]: Abstraction has 187 states and 241 transitions. [2018-11-18 12:09:13,665 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 12:09:13,666 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 187 states and 241 transitions. [2018-11-18 12:09:13,668 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 133 [2018-11-18 12:09:13,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:09:13,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:09:13,669 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:09:13,669 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:09:13,669 INFO L794 eck$LassoCheckResult]: Stem: 428#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 110];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 44];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 80];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 117];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 109];#memory_int := #memory_int[#t~string50.base,4 + #t~string50.offset := 112];#memory_int := #memory_int[#t~string50.base,5 + #t~string50.offset := 58];#memory_int := #memory_int[#t~string50.base,6 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 110];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,3 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 41];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 32];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 10];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(13);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 44];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 77];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 101];#memory_int := #memory_int[#t~string66.base,3 + #t~string66.offset := 116];#memory_int := #memory_int[#t~string66.base,4 + #t~string66.offset := 104];#memory_int := #memory_int[#t~string66.base,5 + #t~string66.offset := 58];#memory_int := #memory_int[#t~string66.base,6 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 67];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 82];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 73];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 84];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 79];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 75];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 41];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 339#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 340#L585 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 341#L578 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 373#L593 main_#t~ret38 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret38;havoc main_#t~ret38; 374#L549 assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 382#L521 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 397#L415 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 448#L800-3 [2018-11-18 12:09:13,669 INFO L796 eck$LassoCheckResult]: Loop: 448#L800-3 assume true; 337#L800-1 assume !false; 338#L801 assume test_~splverifierCounter~0 < 4; 460#L802 test_~tmp~7 := test_#t~nondet59;havoc test_#t~nondet59; 458#L810 assume !(0 != test_~tmp~7); 456#L810-2 test_~tmp___0~1 := test_#t~nondet60;havoc test_#t~nondet60; 455#L820 assume !(0 != test_~tmp___0~1); 429#L820-2 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 342#L830 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 343#L786 assume { :end_inline_startSystem } true; 345#L838-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret35;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 348#L726 __utac_acc__Specification5_spec__2_#t~ret35 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret35;havoc __utac_acc__Specification5_spec__2_#t~ret35; 452#L425 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 451#L624 assume !(0 != ~pumpRunning~0); 445#L624-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 446#L656 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 371#L648-1 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 365#L656-1 assume { :end_inline_processEnvironment } true; 409#L631-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret36, __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 404#L934 __utac_acc__Specification5_spec__3_#t~ret36 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret36;havoc __utac_acc__Specification5_spec__3_#t~ret36; 356#L436 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 357#L436-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 361#L641 assume { :end_inline_timeShift } true; 448#L800-3 [2018-11-18 12:09:13,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:09:13,670 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 12:09:13,670 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:09:13,670 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:09:13,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:09:13,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:09:13,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:09:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:09:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:09:13,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:09:13,723 INFO L82 PathProgramCache]: Analyzing trace with hash -571174036, now seen corresponding path program 1 times [2018-11-18 12:09:13,723 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:09:13,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:09:13,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:09:13,724 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:09:13,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:09:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:09:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:09:13,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:09:13,735 INFO L82 PathProgramCache]: Analyzing trace with hash 252492387, now seen corresponding path program 1 times [2018-11-18 12:09:13,735 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:09:13,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:09:13,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:09:13,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:09:13,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:09:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:09:13,819 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 12:09:13,820 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:09:13,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 12:09:13,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 12:09:13,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 12:09:13,909 INFO L87 Difference]: Start difference. First operand 187 states and 241 transitions. cyclomatic complexity: 57 Second operand 5 states. [2018-11-18 12:09:14,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:09:14,058 INFO L93 Difference]: Finished difference Result 518 states and 657 transitions. [2018-11-18 12:09:14,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 12:09:14,059 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 518 states and 657 transitions. [2018-11-18 12:09:14,064 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 254 [2018-11-18 12:09:14,069 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 518 states to 518 states and 657 transitions. [2018-11-18 12:09:14,069 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 518 [2018-11-18 12:09:14,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 518 [2018-11-18 12:09:14,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 518 states and 657 transitions. [2018-11-18 12:09:14,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 12:09:14,073 INFO L705 BuchiCegarLoop]: Abstraction has 518 states and 657 transitions. [2018-11-18 12:09:14,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states and 657 transitions. [2018-11-18 12:09:14,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 358. [2018-11-18 12:09:14,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2018-11-18 12:09:14,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 452 transitions. [2018-11-18 12:09:14,091 INFO L728 BuchiCegarLoop]: Abstraction has 358 states and 452 transitions. [2018-11-18 12:09:14,091 INFO L608 BuchiCegarLoop]: Abstraction has 358 states and 452 transitions. [2018-11-18 12:09:14,091 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 12:09:14,091 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 358 states and 452 transitions. [2018-11-18 12:09:14,095 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 254 [2018-11-18 12:09:14,095 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:09:14,096 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:09:14,096 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:09:14,097 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:09:14,097 INFO L794 eck$LassoCheckResult]: Stem: 1164#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 110];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 44];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 80];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 117];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 109];#memory_int := #memory_int[#t~string50.base,4 + #t~string50.offset := 112];#memory_int := #memory_int[#t~string50.base,5 + #t~string50.offset := 58];#memory_int := #memory_int[#t~string50.base,6 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 110];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,3 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 41];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 32];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 10];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(13);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 44];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 77];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 101];#memory_int := #memory_int[#t~string66.base,3 + #t~string66.offset := 116];#memory_int := #memory_int[#t~string66.base,4 + #t~string66.offset := 104];#memory_int := #memory_int[#t~string66.base,5 + #t~string66.offset := 58];#memory_int := #memory_int[#t~string66.base,6 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 67];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 82];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 73];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 84];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 79];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 75];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 41];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1061#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 1062#L585 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1063#L578 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1095#L593 main_#t~ret38 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret38;havoc main_#t~ret38; 1096#L549 assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 1105#L521 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1123#L415 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1172#L800-3 [2018-11-18 12:09:14,097 INFO L796 eck$LassoCheckResult]: Loop: 1172#L800-3 assume true; 1194#L800-1 assume !false; 1257#L801 assume test_~splverifierCounter~0 < 4; 1116#L802 test_~tmp~7 := test_#t~nondet59;havoc test_#t~nondet59; 1117#L810 assume !(0 != test_~tmp~7); 1128#L810-2 test_~tmp___0~1 := test_#t~nondet60;havoc test_#t~nondet60; 1129#L820 assume !(0 != test_~tmp___0~1); 1158#L820-2 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 1064#L830 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1065#L786 assume { :end_inline_startSystem } true; 1099#L838-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret35;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 1250#L726 __utac_acc__Specification5_spec__2_#t~ret35 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret35;havoc __utac_acc__Specification5_spec__2_#t~ret35; 1249#L425 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1248#L624 assume !(0 != ~pumpRunning~0); 1247#L624-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1245#L656 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 1240#L648-1 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1201#L656-1 assume { :end_inline_processEnvironment } true; 1202#L631-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret36, __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 1133#L934 __utac_acc__Specification5_spec__3_#t~ret36 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret36;havoc __utac_acc__Specification5_spec__3_#t~ret36; 1079#L436 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 1080#L726-1 __utac_acc__Specification5_spec__3_#t~ret37 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret37;havoc __utac_acc__Specification5_spec__3_#t~ret37; 1264#L440 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 1262#L436-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1171#L641 assume { :end_inline_timeShift } true; 1172#L800-3 [2018-11-18 12:09:14,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:09:14,097 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 12:09:14,098 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:09:14,098 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:09:14,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:09:14,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:09:14,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:09:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:09:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:09:14,132 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:09:14,133 INFO L82 PathProgramCache]: Analyzing trace with hash 838466855, now seen corresponding path program 1 times [2018-11-18 12:09:14,133 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:09:14,133 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:09:14,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:09:14,134 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:09:14,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:09:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:09:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:09:14,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:09:14,143 INFO L82 PathProgramCache]: Analyzing trace with hash 2107916894, now seen corresponding path program 1 times [2018-11-18 12:09:14,143 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:09:14,143 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:09:14,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:09:14,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:09:14,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:09:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:09:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:09:54,822 WARN L180 SmtUtils]: Spent 40.53 s on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 12:10:14,030 WARN L180 SmtUtils]: Spent 19.21 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 12:10:14,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 12:10:14 BoogieIcfgContainer [2018-11-18 12:10:14,095 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 12:10:14,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:10:14,095 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:10:14,096 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:10:14,096 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:09:13" (3/4) ... [2018-11-18 12:10:14,098 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 12:10:14,136 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_89e51681-34a4-4607-9200-d85612d5295d/bin-2019/uautomizer/witness.graphml [2018-11-18 12:10:14,136 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:10:14,137 INFO L168 Benchmark]: Toolchain (without parser) took 61756.76 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 263.7 MB). Free memory was 955.4 MB in the beginning and 1.2 GB in the end (delta: -227.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:10:14,137 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:10:14,137 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -181.0 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:10:14,138 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:10:14,138 INFO L168 Benchmark]: Boogie Preprocessor took 20.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:10:14,138 INFO L168 Benchmark]: RCFGBuilder took 504.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:10:14,139 INFO L168 Benchmark]: BuchiAutomizer took 60811.93 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 118.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -125.9 MB). Peak memory consumption was 321.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:10:14,139 INFO L168 Benchmark]: Witness Printer took 40.65 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:10:14,140 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 341.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -181.0 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 504.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 60811.93 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 118.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -125.9 MB). Peak memory consumption was 321.8 MB. Max. memory is 11.5 GB. * Witness Printer took 40.65 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 358 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 60.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 60.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 163 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 358 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 351 SDtfs, 546 SDslu, 528 SDs, 0 SdLazy, 77 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 800]: 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, "Env(Water:%i"=0, "On"=0, "On"=34, retValue_acc=0, "Pump(System:"=0, ")"=37, "Env(Water:%i"=38, ") "=26, methaneLevelCritical=0, tmp=1, "CRIT"=0, ",Meth:"=0, tmp=0, "CRIT"=8, tmp___1=0, "__utac__get_this_argtype"=19, "__utac__get_this_arg"=23, "__utac__get_this_arg"=11, "libacc.c"=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2585554d=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57d0ee8a=0, switchedOnBeforeTS=0, "libacc.c"=16, ",Pump:"=31, \result=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, NULL=0, systemActive=1, waterLevel=1, \result=1, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25272e0f=0, "\n"=27, "Pump(System:"=35, "Off"=0, "On"=0, ",Pump:"=0, "\n"=0, ") "=0, tmp___0=0, \result=1, "i > 0 && i <= this->argsCount"=15, head=0, pumpRunning=0, \result=0, "On"=29, "i > 0 && i <= this->argsCount"=12, tmp=1, "libacc.c"=0, ",Meth:"=39, "OK"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79e6b1d3=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d1619e=0, retValue_acc=1, "Off"=33, "libacc.c"=24, ")"=0, retValue_acc=1, tmp___2=152, "i > 0 && i <= this->argsCount"=18, tmp___0=0, splverifierCounter=0, "OK"=36, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21d342bf=0, head=0, "libacc.c"=0, tmp=0, "libacc.c"=14, "i > 0 && i <= this->argsCount"=22, "__utac__get_this_arg"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a6fca1c=0, "__utac__get_this_argtype"=17, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ceec3fc=152, "libacc.c"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5472aedf=0, "libacc.c"=0, "Off"=28, "Off"=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 800]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L337] FCALL "i > 0 && i <= this->argsCount" [L337] FCALL "libacc.c" [L338] FCALL "__utac__get_this_arg" [L344] FCALL "i > 0 && i <= this->argsCount" [L344] FCALL "libacc.c" [L345] FCALL "__utac__get_this_arg" [L383] FCALL "i > 0 && i <= this->argsCount" [L383] FCALL "libacc.c" [L384] FCALL "__utac__get_this_argtype" [L390] FCALL "i > 0 && i <= this->argsCount" [L390] FCALL "libacc.c" [L391] FCALL "__utac__get_this_argtype" [L735] FCALL "Pump(System:" [L739] FCALL "On" [L743] FCALL "Off" [L747] FCALL ",Pump:" [L751] FCALL "On" [L755] FCALL "Off" [L759] FCALL ") " [L761] FCALL "\n" [L911] FCALL "Env(Water:%i" [L912] FCALL ",Meth:" [L916] FCALL "CRIT" [L920] FCALL "OK" [L924] FCALL ")" [L409] int switchedOnBeforeTS ; [L458] int cleanupTimeShifts = 4; [L614] int pumpRunning = 0; [L615] int systemActive = 1; [L859] int waterLevel = 1; [L860] int methaneLevelCritical = 0; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L540] int retValue_acc ; [L541] int tmp ; [L545] FCALL select_helpers() [L546] FCALL select_features() [L547] CALL, EXPR valid_product() [L589] int retValue_acc ; [L592] retValue_acc = 1 [L593] RET return (retValue_acc); [L547] EXPR valid_product() [L547] tmp = valid_product() [L549] COND TRUE \read(tmp) [L551] FCALL setup() [L552] CALL runTest() [L530] CALL __utac_acc__Specification5_spec__1() [L414] RET switchedOnBeforeTS = 0 [L530] __utac_acc__Specification5_spec__1() [L531] CALL test() [L791] int splverifierCounter ; [L792] int tmp ; [L793] int tmp___0 ; [L794] int tmp___1 ; [L795] int tmp___2 ; [L798] splverifierCounter = 0 Loop: [L800] COND TRUE 1 [L802] COND TRUE splverifierCounter < 4 [L808] tmp = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp)) [L818] tmp___0 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___0)) [L828] tmp___2 = __VERIFIER_nondet_int() [L830] COND TRUE \read(tmp___2) [L832] CALL startSystem() [L785] RET systemActive = 1 [L832] startSystem() [L847] CALL timeShift() [L622] CALL __utac_acc__Specification5_spec__2() [L423] CALL, EXPR isPumpRunning() [L722] int retValue_acc ; [L725] retValue_acc = pumpRunning [L726] RET return (retValue_acc); [L423] EXPR isPumpRunning() [L423] RET switchedOnBeforeTS = isPumpRunning() [L622] __utac_acc__Specification5_spec__2() [L624] COND FALSE !(\read(pumpRunning)) [L631] COND TRUE \read(systemActive) [L633] CALL processEnvironment() [L653] int tmp ; [L656] COND FALSE !(\read(pumpRunning)) [L671] RET, FCALL processEnvironment__wrappee__methaneQuery() [L633] processEnvironment() [L639] CALL __utac_acc__Specification5_spec__3() [L429] int tmp ; [L430] int tmp___0 ; [L434] CALL, EXPR getWaterLevel() [L930] int retValue_acc ; [L933] retValue_acc = waterLevel [L934] RET return (retValue_acc); [L434] EXPR getWaterLevel() [L434] tmp = getWaterLevel() [L436] COND TRUE tmp != 2 [L438] CALL, EXPR isPumpRunning() [L722] int retValue_acc ; [L725] retValue_acc = pumpRunning [L726] RET return (retValue_acc); [L438] EXPR isPumpRunning() [L438] tmp___0 = isPumpRunning() [L440] COND FALSE, RET !(\read(tmp___0)) [L639] RET __utac_acc__Specification5_spec__3() [L847] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...