./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product44_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_495ba95e-cbe7-4120-ab48-a57a054dcf98/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_495ba95e-cbe7-4120-ab48-a57a054dcf98/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_495ba95e-cbe7-4120-ab48-a57a054dcf98/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_495ba95e-cbe7-4120-ab48-a57a054dcf98/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product44_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_495ba95e-cbe7-4120-ab48-a57a054dcf98/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_495ba95e-cbe7-4120-ab48-a57a054dcf98/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 a22c1e90e019171affadaeb315d0122780579e6b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 14:54:14,394 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:54:14,395 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:54:14,402 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:54:14,402 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:54:14,403 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:54:14,404 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:54:14,405 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:54:14,406 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:54:14,407 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:54:14,407 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:54:14,408 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:54:14,408 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:54:14,409 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:54:14,410 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:54:14,410 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:54:14,411 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:54:14,412 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:54:14,414 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:54:14,415 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:54:14,416 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:54:14,416 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:54:14,418 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:54:14,418 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:54:14,419 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:54:14,419 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:54:14,420 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:54:14,420 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:54:14,421 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:54:14,422 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:54:14,422 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:54:14,423 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:54:14,423 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:54:14,423 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:54:14,424 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:54:14,424 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:54:14,424 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_495ba95e-cbe7-4120-ab48-a57a054dcf98/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 14:54:14,435 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:54:14,435 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:54:14,436 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:54:14,436 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:54:14,436 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:54:14,436 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 14:54:14,436 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 14:54:14,437 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 14:54:14,437 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 14:54:14,437 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 14:54:14,437 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 14:54:14,437 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:54:14,437 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:54:14,437 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:54:14,438 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:54:14,438 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:54:14,438 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:54:14,438 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 14:54:14,438 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 14:54:14,438 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 14:54:14,439 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:54:14,439 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:54:14,439 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 14:54:14,439 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:54:14,439 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 14:54:14,439 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:54:14,439 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:54:14,440 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 14:54:14,440 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:54:14,440 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:54:14,440 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 14:54:14,441 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 14:54:14,441 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_495ba95e-cbe7-4120-ab48-a57a054dcf98/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 -> a22c1e90e019171affadaeb315d0122780579e6b [2018-11-18 14:54:14,468 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:54:14,476 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:54:14,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:54:14,479 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:54:14,479 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:54:14,479 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_495ba95e-cbe7-4120-ab48-a57a054dcf98/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product44_true-unreach-call_false-termination.cil.c [2018-11-18 14:54:14,523 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_495ba95e-cbe7-4120-ab48-a57a054dcf98/bin-2019/uautomizer/data/05ee2e4e7/68ebff3c511342baaee2019675bed110/FLAG1813b513d [2018-11-18 14:54:14,854 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:54:14,855 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_495ba95e-cbe7-4120-ab48-a57a054dcf98/sv-benchmarks/c/product-lines/minepump_spec5_product44_true-unreach-call_false-termination.cil.c [2018-11-18 14:54:14,864 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_495ba95e-cbe7-4120-ab48-a57a054dcf98/bin-2019/uautomizer/data/05ee2e4e7/68ebff3c511342baaee2019675bed110/FLAG1813b513d [2018-11-18 14:54:14,872 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_495ba95e-cbe7-4120-ab48-a57a054dcf98/bin-2019/uautomizer/data/05ee2e4e7/68ebff3c511342baaee2019675bed110 [2018-11-18 14:54:14,874 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:54:14,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:54:14,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:54:14,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:54:14,879 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:54:14,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:54:14" (1/1) ... [2018-11-18 14:54:14,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70682c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:14, skipping insertion in model container [2018-11-18 14:54:14,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:54:14" (1/1) ... [2018-11-18 14:54:14,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:54:14,917 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:54:15,102 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:54:15,111 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:54:15,219 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:54:15,243 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:54:15,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:15 WrapperNode [2018-11-18 14:54:15,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:54:15,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:54:15,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:54:15,244 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:54:15,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:15" (1/1) ... [2018-11-18 14:54:15,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:15" (1/1) ... [2018-11-18 14:54:15,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:54:15,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:54:15,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:54:15,294 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:54:15,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:15" (1/1) ... [2018-11-18 14:54:15,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:15" (1/1) ... [2018-11-18 14:54:15,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:15" (1/1) ... [2018-11-18 14:54:15,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:15" (1/1) ... [2018-11-18 14:54:15,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:15" (1/1) ... [2018-11-18 14:54:15,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:15" (1/1) ... [2018-11-18 14:54:15,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:15" (1/1) ... [2018-11-18 14:54:15,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:54:15,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:54:15,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:54:15,324 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:54:15,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_495ba95e-cbe7-4120-ab48-a57a054dcf98/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 14:54:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:54:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:54:15,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:54:15,876 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:54:15,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:54:15 BoogieIcfgContainer [2018-11-18 14:54:15,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:54:15,878 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 14:54:15,878 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 14:54:15,881 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 14:54:15,882 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:54:15,882 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 02:54:14" (1/3) ... [2018-11-18 14:54:15,883 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46d8434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:54:15, skipping insertion in model container [2018-11-18 14:54:15,883 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:54:15,883 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:15" (2/3) ... [2018-11-18 14:54:15,884 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46d8434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:54:15, skipping insertion in model container [2018-11-18 14:54:15,884 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:54:15,884 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:54:15" (3/3) ... [2018-11-18 14:54:15,885 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product44_true-unreach-call_false-termination.cil.c [2018-11-18 14:54:15,930 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:54:15,931 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 14:54:15,931 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 14:54:15,931 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 14:54:15,931 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:54:15,931 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:54:15,931 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 14:54:15,931 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:54:15,932 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 14:54:15,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states. [2018-11-18 14:54:15,969 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2018-11-18 14:54:15,970 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:54:15,970 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:54:15,977 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:54:15,977 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 14:54:15,978 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 14:54:15,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states. [2018-11-18 14:54:15,983 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2018-11-18 14:54:15,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:54:15,983 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:54:15,984 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:54:15,984 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 14:54:15,990 INFO L794 eck$LassoCheckResult]: Stem: 106#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(21);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(30);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(9);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(25);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(13);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 44];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 80];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 117];#memory_int := #memory_int[#t~string55.base,3 + #t~string55.offset := 109];#memory_int := #memory_int[#t~string55.base,4 + #t~string55.offset := 112];#memory_int := #memory_int[#t~string55.base,5 + #t~string55.offset := 58];#memory_int := #memory_int[#t~string55.base,6 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 110];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 79];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 41];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 32];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 10];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 13#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7;assume { :begin_inline_select_helpers } true; 82#L807true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 10#L800true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 102#L815true main_#t~ret70 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~7 := main_#t~ret70;havoc main_#t~ret70; 33#L904true assume 0 != main_~tmp~7;assume { :begin_inline_setup } true; 63#L879true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 111#L933true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 134#L723-3true [2018-11-18 14:54:15,991 INFO L796 eck$LassoCheckResult]: Loop: 134#L723-3true assume true; 129#L723-1true assume !false; 96#L724true assume test_~splverifierCounter~0 < 4; 50#L725true test_~tmp~6 := test_#t~nondet65;havoc test_#t~nondet65; 53#L733true assume !(0 != test_~tmp~6); 58#L733-2true test_~tmp___0~1 := test_#t~nondet66;havoc test_#t~nondet66; 108#L743true assume !(0 != test_~tmp___0~1); 112#L743-2true test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 19#L753true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 64#L708true assume { :end_inline_startSystem } true; 26#L761-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret71;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; 29#L629true __utac_acc__Specification5_spec__2_#t~ret71 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret71;havoc __utac_acc__Specification5_spec__2_#t~ret71; 23#L943true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 90#L526true assume !(0 != ~pumpRunning~0); 93#L526-2true assume !(0 != ~systemActive~0); 128#L533-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 39#L122true __utac_acc__Specification5_spec__3_#t~ret72 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 22#L954true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 3#L954-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 73#L543true assume { :end_inline_timeShift } true; 134#L723-3true [2018-11-18 14:54:15,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:54:15,997 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 14:54:15,999 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:54:15,999 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:54:16,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:16,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:54:16,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:16,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:54:16,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1530018117, now seen corresponding path program 1 times [2018-11-18 14:54:16,161 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:54:16,162 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:54:16,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:16,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:54:16,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:54:16,216 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 14:54:16,218 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:54:16,218 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:54:16,222 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:54:16,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:54:16,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:54:16,236 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 3 states. [2018-11-18 14:54:16,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:54:16,297 INFO L93 Difference]: Finished difference Result 252 states and 326 transitions. [2018-11-18 14:54:16,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:54:16,299 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 252 states and 326 transitions. [2018-11-18 14:54:16,302 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 164 [2018-11-18 14:54:16,306 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 252 states to 232 states and 305 transitions. [2018-11-18 14:54:16,306 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 232 [2018-11-18 14:54:16,307 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 232 [2018-11-18 14:54:16,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 232 states and 305 transitions. [2018-11-18 14:54:16,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:54:16,309 INFO L705 BuchiCegarLoop]: Abstraction has 232 states and 305 transitions. [2018-11-18 14:54:16,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states and 305 transitions. [2018-11-18 14:54:16,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 229. [2018-11-18 14:54:16,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2018-11-18 14:54:16,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 301 transitions. [2018-11-18 14:54:16,337 INFO L728 BuchiCegarLoop]: Abstraction has 229 states and 301 transitions. [2018-11-18 14:54:16,338 INFO L608 BuchiCegarLoop]: Abstraction has 229 states and 301 transitions. [2018-11-18 14:54:16,338 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 14:54:16,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 229 states and 301 transitions. [2018-11-18 14:54:16,340 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 161 [2018-11-18 14:54:16,340 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:54:16,340 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:54:16,341 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:54:16,341 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 14:54:16,341 INFO L794 eck$LassoCheckResult]: Stem: 525#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(21);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(30);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(9);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(25);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(13);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 44];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 80];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 117];#memory_int := #memory_int[#t~string55.base,3 + #t~string55.offset := 109];#memory_int := #memory_int[#t~string55.base,4 + #t~string55.offset := 112];#memory_int := #memory_int[#t~string55.base,5 + #t~string55.offset := 58];#memory_int := #memory_int[#t~string55.base,6 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 110];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 79];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 41];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 32];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 10];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 413#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7;assume { :begin_inline_select_helpers } true; 414#L807 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 410#L800 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 411#L815 main_#t~ret70 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~7 := main_#t~ret70;havoc main_#t~ret70; 447#L904 assume 0 != main_~tmp~7;assume { :begin_inline_setup } true; 448#L879 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 478#L933 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 531#L723-3 [2018-11-18 14:54:16,342 INFO L796 eck$LassoCheckResult]: Loop: 531#L723-3 assume true; 551#L723-1 assume !false; 550#L724 assume test_~splverifierCounter~0 < 4; 466#L725 test_~tmp~6 := test_#t~nondet65;havoc test_#t~nondet65; 467#L733 assume !(0 != test_~tmp~6); 572#L733-2 test_~tmp___0~1 := test_#t~nondet66;havoc test_#t~nondet66; 571#L743 assume !(0 != test_~tmp___0~1); 532#L743-2 test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 533#L753 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet68;havoc test_#t~nondet68; 432#L761 assume !(0 != test_~tmp___1~0); 433#L761-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret71;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; 442#L629 __utac_acc__Specification5_spec__2_#t~ret71 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret71;havoc __utac_acc__Specification5_spec__2_#t~ret71; 443#L943 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 564#L526 assume !(0 != ~pumpRunning~0); 562#L526-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret45, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 559#L558 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 538#L550-1 assume { :end_inline_processEnvironment__wrappee__base } true; 511#L558-1 assume { :end_inline_processEnvironment } true; 557#L533-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 556#L122 __utac_acc__Specification5_spec__3_#t~ret72 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 555#L954 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 553#L954-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 552#L543 assume { :end_inline_timeShift } true; 531#L723-3 [2018-11-18 14:54:16,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:54:16,342 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 14:54:16,342 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:54:16,342 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:54:16,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:16,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:54:16,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:16,397 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:54:16,397 INFO L82 PathProgramCache]: Analyzing trace with hash 66975134, now seen corresponding path program 1 times [2018-11-18 14:54:16,397 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:54:16,398 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:54:16,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:16,398 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:54:16,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:54:16,420 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 14:54:16,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:54:16,421 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:54:16,421 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:54:16,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:54:16,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:54:16,422 INFO L87 Difference]: Start difference. First operand 229 states and 301 transitions. cyclomatic complexity: 75 Second operand 3 states. [2018-11-18 14:54:16,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:54:16,493 INFO L93 Difference]: Finished difference Result 363 states and 464 transitions. [2018-11-18 14:54:16,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:54:16,494 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 363 states and 464 transitions. [2018-11-18 14:54:16,496 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 263 [2018-11-18 14:54:16,497 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 363 states to 363 states and 464 transitions. [2018-11-18 14:54:16,498 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 363 [2018-11-18 14:54:16,498 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 363 [2018-11-18 14:54:16,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 363 states and 464 transitions. [2018-11-18 14:54:16,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:54:16,499 INFO L705 BuchiCegarLoop]: Abstraction has 363 states and 464 transitions. [2018-11-18 14:54:16,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states and 464 transitions. [2018-11-18 14:54:16,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2018-11-18 14:54:16,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2018-11-18 14:54:16,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 464 transitions. [2018-11-18 14:54:16,514 INFO L728 BuchiCegarLoop]: Abstraction has 363 states and 464 transitions. [2018-11-18 14:54:16,514 INFO L608 BuchiCegarLoop]: Abstraction has 363 states and 464 transitions. [2018-11-18 14:54:16,514 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 14:54:16,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 363 states and 464 transitions. [2018-11-18 14:54:16,516 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 263 [2018-11-18 14:54:16,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:54:16,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:54:16,517 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:54:16,517 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:54:16,517 INFO L794 eck$LassoCheckResult]: Stem: 1124#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(21);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(30);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(9);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(25);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(13);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 44];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 80];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 117];#memory_int := #memory_int[#t~string55.base,3 + #t~string55.offset := 109];#memory_int := #memory_int[#t~string55.base,4 + #t~string55.offset := 112];#memory_int := #memory_int[#t~string55.base,5 + #t~string55.offset := 58];#memory_int := #memory_int[#t~string55.base,6 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 110];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 79];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 41];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 32];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 10];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1012#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7;assume { :begin_inline_select_helpers } true; 1013#L807 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1008#L800 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1009#L815 main_#t~ret70 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~7 := main_#t~ret70;havoc main_#t~ret70; 1042#L904 assume 0 != main_~tmp~7;assume { :begin_inline_setup } true; 1043#L879 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1075#L933 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1132#L723-3 [2018-11-18 14:54:16,518 INFO L796 eck$LassoCheckResult]: Loop: 1132#L723-3 assume true; 1145#L723-1 assume !false; 1146#L724 assume test_~splverifierCounter~0 < 4; 1244#L725 test_~tmp~6 := test_#t~nondet65;havoc test_#t~nondet65; 1064#L733 assume !(0 != test_~tmp~6); 1015#L733-2 test_~tmp___0~1 := test_#t~nondet66;havoc test_#t~nondet66; 1127#L743 assume !(0 != test_~tmp___0~1); 1126#L743-2 test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 1206#L753 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet68;havoc test_#t~nondet68; 1029#L761 assume !(0 != test_~tmp___1~0); 1030#L761-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret71;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; 1033#L629 __utac_acc__Specification5_spec__2_#t~ret71 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret71;havoc __utac_acc__Specification5_spec__2_#t~ret71; 1038#L943 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1117#L526 assume !(0 != ~pumpRunning~0); 1118#L526-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret45, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1241#L558 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret64, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1227#L130 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1240#L135 isHighWaterLevel_#t~ret64 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret64;havoc isHighWaterLevel_#t~ret64; 1239#L678 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~0 := 0; 1238#L678-2 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1237#L684 processEnvironment_#t~ret45 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~3 := processEnvironment_#t~ret45;havoc processEnvironment_#t~ret45; 1235#L562 assume !(0 != processEnvironment_~tmp~3);assume { :begin_inline_processEnvironment__wrappee__base } true; 1236#L550 assume { :end_inline_processEnvironment__wrappee__base } true; 1355#L558-1 assume { :end_inline_processEnvironment } true; 1251#L533-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1199#L122 __utac_acc__Specification5_spec__3_#t~ret72 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 1200#L954 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 1247#L954-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1246#L543 assume { :end_inline_timeShift } true; 1132#L723-3 [2018-11-18 14:54:16,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:54:16,518 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 14:54:16,518 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:54:16,518 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:54:16,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:16,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:54:16,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:16,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:54:16,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1366587430, now seen corresponding path program 1 times [2018-11-18 14:54:16,559 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:54:16,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:54:16,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:16,559 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:54:16,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:54:16,620 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 14:54:16,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:54:16,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:54:16,621 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:54:16,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:54:16,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:54:16,621 INFO L87 Difference]: Start difference. First operand 363 states and 464 transitions. cyclomatic complexity: 104 Second operand 5 states. [2018-11-18 14:54:16,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:54:16,755 INFO L93 Difference]: Finished difference Result 1488 states and 1884 transitions. [2018-11-18 14:54:16,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:54:16,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1488 states and 1884 transitions. [2018-11-18 14:54:16,763 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1062 [2018-11-18 14:54:16,769 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1488 states to 1488 states and 1884 transitions. [2018-11-18 14:54:16,769 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1488 [2018-11-18 14:54:16,770 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1488 [2018-11-18 14:54:16,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1488 states and 1884 transitions. [2018-11-18 14:54:16,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:54:16,774 INFO L705 BuchiCegarLoop]: Abstraction has 1488 states and 1884 transitions. [2018-11-18 14:54:16,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states and 1884 transitions. [2018-11-18 14:54:16,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 712. [2018-11-18 14:54:16,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2018-11-18 14:54:16,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 896 transitions. [2018-11-18 14:54:16,790 INFO L728 BuchiCegarLoop]: Abstraction has 712 states and 896 transitions. [2018-11-18 14:54:16,790 INFO L608 BuchiCegarLoop]: Abstraction has 712 states and 896 transitions. [2018-11-18 14:54:16,790 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 14:54:16,790 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 712 states and 896 transitions. [2018-11-18 14:54:16,792 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 522 [2018-11-18 14:54:16,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:54:16,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:54:16,793 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:54:16,793 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 14:54:16,794 INFO L794 eck$LassoCheckResult]: Stem: 3002#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(21);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(30);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(9);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(25);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(13);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 44];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 80];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 117];#memory_int := #memory_int[#t~string55.base,3 + #t~string55.offset := 109];#memory_int := #memory_int[#t~string55.base,4 + #t~string55.offset := 112];#memory_int := #memory_int[#t~string55.base,5 + #t~string55.offset := 58];#memory_int := #memory_int[#t~string55.base,6 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 110];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 79];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 41];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 32];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 10];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 2883#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7;assume { :begin_inline_select_helpers } true; 2884#L807 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2877#L800 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 2878#L815 main_#t~ret70 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~7 := main_#t~ret70;havoc main_#t~ret70; 2910#L904 assume 0 != main_~tmp~7;assume { :begin_inline_setup } true; 2911#L879 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2948#L933 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3006#L723-3 [2018-11-18 14:54:16,794 INFO L796 eck$LassoCheckResult]: Loop: 3006#L723-3 assume true; 3251#L723-1 assume !false; 3249#L724 assume test_~splverifierCounter~0 < 4; 3248#L725 test_~tmp~6 := test_#t~nondet65;havoc test_#t~nondet65; 3246#L733 assume !(0 != test_~tmp~6); 3244#L733-2 test_~tmp___0~1 := test_#t~nondet66;havoc test_#t~nondet66; 3242#L743 assume !(0 != test_~tmp___0~1); 3240#L743-2 test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 3239#L753 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3217#L708 assume { :end_inline_startSystem } true; 3214#L761-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret71;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; 3211#L629 __utac_acc__Specification5_spec__2_#t~ret71 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret71;havoc __utac_acc__Specification5_spec__2_#t~ret71; 3182#L943 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3179#L526 assume !(0 != ~pumpRunning~0); 3178#L526-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret45, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 3177#L558 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret64, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 3147#L130 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 2985#L135 isHighWaterLevel_#t~ret64 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret64;havoc isHighWaterLevel_#t~ret64; 3173#L678 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~0 := 0; 3171#L678-2 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 3167#L684 processEnvironment_#t~ret45 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~3 := processEnvironment_#t~ret45;havoc processEnvironment_#t~ret45; 3164#L562 assume !(0 != processEnvironment_~tmp~3);assume { :begin_inline_processEnvironment__wrappee__base } true; 3165#L550 assume { :end_inline_processEnvironment__wrappee__base } true; 3260#L558-1 assume { :end_inline_processEnvironment } true; 3259#L533-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 3258#L122 __utac_acc__Specification5_spec__3_#t~ret72 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 3257#L954 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8;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; 3256#L629-1 __utac_acc__Specification5_spec__3_#t~ret73 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 3255#L958 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 3253#L954-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3252#L543 assume { :end_inline_timeShift } true; 3006#L723-3 [2018-11-18 14:54:16,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:54:16,794 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2018-11-18 14:54:16,794 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:54:16,795 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:54:16,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:16,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:54:16,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:16,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:16,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:54:16,826 INFO L82 PathProgramCache]: Analyzing trace with hash 652614191, now seen corresponding path program 1 times [2018-11-18 14:54:16,827 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:54:16,827 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:54:16,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:16,827 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:54:16,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:16,838 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:54:16,838 INFO L82 PathProgramCache]: Analyzing trace with hash -159426010, now seen corresponding path program 1 times [2018-11-18 14:54:16,838 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:54:16,838 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:54:16,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:16,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:54:16,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:54:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:54:17,036 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2018-11-18 14:56:03,091 WARN L180 SmtUtils]: Spent 1.77 m on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 14:56:56,032 WARN L180 SmtUtils]: Spent 52.94 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 14:56:56,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 02:56:56 BoogieIcfgContainer [2018-11-18 14:56:56,107 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 14:56:56,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:56:56,107 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:56:56,107 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:56:56,107 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:54:15" (3/4) ... [2018-11-18 14:56:56,109 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 14:56:56,175 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_495ba95e-cbe7-4120-ab48-a57a054dcf98/bin-2019/uautomizer/witness.graphml [2018-11-18 14:56:56,175 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:56:56,176 INFO L168 Benchmark]: Toolchain (without parser) took 161301.21 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 230.7 MB). Free memory was 956.4 MB in the beginning and 812.3 MB in the end (delta: 144.2 MB). Peak memory consumption was 374.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:56:56,176 INFO L168 Benchmark]: CDTParser took 0.12 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 14:56:56,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -157.6 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:56:56,177 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.25 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 14:56:56,177 INFO L168 Benchmark]: Boogie Preprocessor took 29.91 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 14:56:56,178 INFO L168 Benchmark]: RCFGBuilder took 553.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 77.5 MB). Peak memory consumption was 77.5 MB. Max. memory is 11.5 GB. [2018-11-18 14:56:56,178 INFO L168 Benchmark]: BuchiAutomizer took 160229.14 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 98.0 MB). Free memory was 1.0 GB in the beginning and 821.2 MB in the end (delta: 215.4 MB). Peak memory consumption was 313.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:56:56,179 INFO L168 Benchmark]: Witness Printer took 68.42 ms. Allocated memory is still 1.3 GB. Free memory was 821.2 MB in the beginning and 812.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:56:56,181 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 367.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -157.6 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.25 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. * Boogie Preprocessor took 29.91 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 553.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 77.5 MB). Peak memory consumption was 77.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 160229.14 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 98.0 MB). Free memory was 1.0 GB in the beginning and 821.2 MB in the end (delta: 215.4 MB). Peak memory consumption was 313.4 MB. Max. memory is 11.5 GB. * Witness Printer took 68.42 ms. Allocated memory is still 1.3 GB. Free memory was 821.2 MB in the beginning and 812.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 712 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 160.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 159.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 779 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 712 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 574 SDtfs, 994 SDslu, 988 SDs, 0 SdLazy, 136 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 723]: 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, ",Pump:"=36, "Env(Water:%i"=11, "\n"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "OK"=15, ") "=0, "\n"=40, "libacc.c"=26, "__utac__get_this_argtype"=0, methaneLevelCritical=0, "i > 0 && i <= this->argsCount"=24, retValue_acc=1, tmp=1, tmp___0=0, "libacc.c"=29, "__utac__get_this_arg"=23, tmp=0, retValue_acc=0, tmp___1=0, "libacc.c"=18, "i > 0 && i <= this->argsCount"=17, "__utac__get_this_argtype"=27, cleanupTimeShifts=4, switchedOnBeforeTS=0, "i > 0 && i <= this->argsCount"=20, "__utac__get_this_argtype"=31, \result=0, "Off"=35, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5177f4b5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ff3f35d=0, "libacc.c"=0, NULL=0, systemActive=1, waterLevel=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ceabab0=0, "libacc.c"=0, "__utac__get_this_arg"=0, "libacc.c"=0, "Pump(System:"=0, \result=0, ",Pump:"=0, "On"=0, retValue_acc=0, "Off"=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp___0=0, "Pump(System:"=33, "On"=37, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@785e656=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e0155f=0, retValue_acc=1, tmp=1, "__utac__get_this_arg"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33339820=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b3ba07a=164, "On"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7870c4ef=0, \result=1, ") "=39, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62757426=0, "CRIT"=14, tmp___2=164, tmp=1, "__utac__get_this_arg"=19, tmp___0=0, splverifierCounter=0, "Env(Water:%i"=0, ",Meth:"=0, "Off"=0, ")"=0, "OK"=0, "CRIT"=0, ")"=16, "Off"=38, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47818192=0, head=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=22, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, ",Meth:"=12, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=28, retValue_acc=0, "On"=34} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 723]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L99] FCALL "Env(Water:%i" [L100] FCALL ",Meth:" [L104] FCALL "CRIT" [L108] FCALL "OK" [L112] FCALL ")" [L438] FCALL "i > 0 && i <= this->argsCount" [L438] FCALL "libacc.c" [L439] FCALL "__utac__get_this_arg" [L445] FCALL "i > 0 && i <= this->argsCount" [L445] FCALL "libacc.c" [L446] FCALL "__utac__get_this_arg" [L484] FCALL "i > 0 && i <= this->argsCount" [L484] FCALL "libacc.c" [L485] FCALL "__utac__get_this_argtype" [L491] FCALL "i > 0 && i <= this->argsCount" [L491] FCALL "libacc.c" [L492] FCALL "__utac__get_this_argtype" [L638] FCALL "Pump(System:" [L642] FCALL "On" [L646] FCALL "Off" [L650] FCALL ",Pump:" [L654] FCALL "On" [L658] FCALL "Off" [L662] FCALL ") " [L664] FCALL "\n" [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L514] int pumpRunning = 0; [L515] int systemActive = 1; [L820] int cleanupTimeShifts = 4; [L927] int switchedOnBeforeTS ; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L895] int retValue_acc ; [L896] int tmp ; [L900] FCALL select_helpers() [L901] FCALL select_features() [L902] CALL, EXPR valid_product() [L811] int retValue_acc ; [L814] retValue_acc = 1 [L815] RET return (retValue_acc); [L902] EXPR valid_product() [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) [L906] FCALL setup() [L907] CALL runTest() [L888] CALL __utac_acc__Specification5_spec__1() [L932] RET switchedOnBeforeTS = 0 [L888] __utac_acc__Specification5_spec__1() [L889] CALL test() [L714] int splverifierCounter ; [L715] int tmp ; [L716] int tmp___0 ; [L717] int tmp___1 ; [L718] int tmp___2 ; [L721] splverifierCounter = 0 Loop: [L723] COND TRUE 1 [L725] COND TRUE splverifierCounter < 4 [L731] tmp = __VERIFIER_nondet_int() [L733] COND FALSE !(\read(tmp)) [L741] tmp___0 = __VERIFIER_nondet_int() [L743] COND FALSE !(\read(tmp___0)) [L751] tmp___2 = __VERIFIER_nondet_int() [L753] COND TRUE \read(tmp___2) [L755] CALL startSystem() [L707] RET systemActive = 1 [L755] startSystem() [L770] CALL timeShift() [L524] CALL __utac_acc__Specification5_spec__2() [L941] CALL, EXPR isPumpRunning() [L625] int retValue_acc ; [L628] retValue_acc = pumpRunning [L629] RET return (retValue_acc); [L941] EXPR isPumpRunning() [L941] RET switchedOnBeforeTS = isPumpRunning() [L524] __utac_acc__Specification5_spec__2() [L526] COND FALSE !(\read(pumpRunning)) [L533] COND TRUE \read(systemActive) [L535] CALL processEnvironment() [L555] int tmp ; [L558] COND TRUE ! pumpRunning [L560] CALL, EXPR isHighWaterLevel() [L670] int retValue_acc ; [L671] int tmp ; [L672] int tmp___0 ; [L676] CALL, EXPR isHighWaterSensorDry() [L127] int retValue_acc ; [L130] COND TRUE waterLevel < 2 [L131] retValue_acc = 1 [L132] RET return (retValue_acc); [L676] EXPR isHighWaterSensorDry() [L676] tmp = isHighWaterSensorDry() [L678] COND TRUE \read(tmp) [L679] tmp___0 = 0 [L683] retValue_acc = tmp___0 [L684] RET return (retValue_acc); [L560] EXPR isHighWaterLevel() [L560] tmp = isHighWaterLevel() [L562] COND FALSE !(\read(tmp)) [L568] RET, FCALL processEnvironment__wrappee__base() [L535] processEnvironment() [L541] CALL __utac_acc__Specification5_spec__3() [L947] int tmp ; [L948] int tmp___0 ; [L952] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] RET return (retValue_acc); [L952] EXPR getWaterLevel() [L952] tmp = getWaterLevel() [L954] COND TRUE tmp != 2 [L956] CALL, EXPR isPumpRunning() [L625] int retValue_acc ; [L628] retValue_acc = pumpRunning [L629] RET return (retValue_acc); [L956] EXPR isPumpRunning() [L956] tmp___0 = isPumpRunning() [L958] COND FALSE, RET !(\read(tmp___0)) [L541] RET __utac_acc__Specification5_spec__3() [L770] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...