./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product47_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_871e3fb0-5bec-4390-a34c-eb26f90ca8c3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_871e3fb0-5bec-4390-a34c-eb26f90ca8c3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_871e3fb0-5bec-4390-a34c-eb26f90ca8c3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_871e3fb0-5bec-4390-a34c-eb26f90ca8c3/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product47_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_871e3fb0-5bec-4390-a34c-eb26f90ca8c3/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_871e3fb0-5bec-4390-a34c-eb26f90ca8c3/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 8425c566d51ac72c4c499354b129f4f120e9c3b0 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 16:33:47,271 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:33:47,273 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:33:47,282 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:33:47,282 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:33:47,282 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:33:47,283 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:33:47,285 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:33:47,286 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:33:47,287 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:33:47,287 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:33:47,287 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:33:47,288 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:33:47,289 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:33:47,290 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:33:47,291 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:33:47,291 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:33:47,293 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:33:47,294 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:33:47,295 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:33:47,296 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:33:47,297 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:33:47,299 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:33:47,299 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:33:47,299 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:33:47,300 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:33:47,301 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:33:47,302 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:33:47,303 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:33:47,303 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:33:47,304 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:33:47,304 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:33:47,305 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:33:47,305 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:33:47,306 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:33:47,306 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:33:47,307 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_871e3fb0-5bec-4390-a34c-eb26f90ca8c3/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 16:33:47,319 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:33:47,319 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:33:47,320 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:33:47,320 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:33:47,320 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:33:47,320 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 16:33:47,321 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 16:33:47,321 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 16:33:47,321 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 16:33:47,321 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 16:33:47,321 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 16:33:47,322 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:33:47,322 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:33:47,322 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 16:33:47,322 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:33:47,322 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:33:47,322 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:33:47,322 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 16:33:47,322 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 16:33:47,323 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 16:33:47,323 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:33:47,323 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:33:47,323 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 16:33:47,323 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:33:47,323 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 16:33:47,323 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:33:47,323 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:33:47,323 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 16:33:47,324 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:33:47,324 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:33:47,324 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 16:33:47,327 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 16:33:47,327 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_871e3fb0-5bec-4390-a34c-eb26f90ca8c3/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 -> 8425c566d51ac72c4c499354b129f4f120e9c3b0 [2018-11-18 16:33:47,354 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:33:47,364 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:33:47,367 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:33:47,368 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:33:47,368 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:33:47,369 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_871e3fb0-5bec-4390-a34c-eb26f90ca8c3/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product47_false-unreach-call_false-termination.cil.c [2018-11-18 16:33:47,415 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_871e3fb0-5bec-4390-a34c-eb26f90ca8c3/bin-2019/uautomizer/data/3dcef1c60/acbb0c9042fe453baac76fa75669104e/FLAGcb5529976 [2018-11-18 16:33:47,770 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:33:47,771 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_871e3fb0-5bec-4390-a34c-eb26f90ca8c3/sv-benchmarks/c/product-lines/minepump_spec3_product47_false-unreach-call_false-termination.cil.c [2018-11-18 16:33:47,782 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_871e3fb0-5bec-4390-a34c-eb26f90ca8c3/bin-2019/uautomizer/data/3dcef1c60/acbb0c9042fe453baac76fa75669104e/FLAGcb5529976 [2018-11-18 16:33:48,135 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_871e3fb0-5bec-4390-a34c-eb26f90ca8c3/bin-2019/uautomizer/data/3dcef1c60/acbb0c9042fe453baac76fa75669104e [2018-11-18 16:33:48,137 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:33:48,138 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:33:48,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:33:48,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:33:48,141 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:33:48,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:33:48" (1/1) ... [2018-11-18 16:33:48,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5141c186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:48, skipping insertion in model container [2018-11-18 16:33:48,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:33:48" (1/1) ... [2018-11-18 16:33:48,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:33:48,188 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:33:48,404 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:33:48,416 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:33:48,508 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:33:48,594 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:33:48,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:48 WrapperNode [2018-11-18 16:33:48,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:33:48,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:33:48,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:33:48,596 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:33:48,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:48" (1/1) ... [2018-11-18 16:33:48,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:48" (1/1) ... [2018-11-18 16:33:48,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:33:48,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:33:48,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:33:48,658 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:33:48,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:48" (1/1) ... [2018-11-18 16:33:48,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:48" (1/1) ... [2018-11-18 16:33:48,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:48" (1/1) ... [2018-11-18 16:33:48,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:48" (1/1) ... [2018-11-18 16:33:48,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:48" (1/1) ... [2018-11-18 16:33:48,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:48" (1/1) ... [2018-11-18 16:33:48,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:48" (1/1) ... [2018-11-18 16:33:48,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:33:48,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:33:48,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:33:48,693 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:33:48,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_871e3fb0-5bec-4390-a34c-eb26f90ca8c3/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 16:33:48,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:33:48,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:33:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:33:49,447 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:33:49,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:33:49 BoogieIcfgContainer [2018-11-18 16:33:49,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:33:49,449 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 16:33:49,449 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 16:33:49,452 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 16:33:49,453 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:33:49,453 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 04:33:48" (1/3) ... [2018-11-18 16:33:49,454 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32c5f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:33:49, skipping insertion in model container [2018-11-18 16:33:49,454 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:33:49,454 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:48" (2/3) ... [2018-11-18 16:33:49,455 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32c5f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:33:49, skipping insertion in model container [2018-11-18 16:33:49,455 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:33:49,455 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:33:49" (3/3) ... [2018-11-18 16:33:49,456 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product47_false-unreach-call_false-termination.cil.c [2018-11-18 16:33:49,491 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:33:49,492 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 16:33:49,492 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 16:33:49,492 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 16:33:49,492 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:33:49,492 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:33:49,492 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 16:33:49,493 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:33:49,493 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 16:33:49,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 192 states. [2018-11-18 16:33:49,531 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2018-11-18 16:33:49,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:33:49,531 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:33:49,537 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:33:49,538 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:33:49,538 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 16:33:49,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 192 states. [2018-11-18 16:33:49,544 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2018-11-18 16:33:49,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:33:49,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:33:49,545 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:33:49,545 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:33:49,550 INFO L794 eck$LassoCheckResult]: Stem: 125#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(30);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(9);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(21);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(25);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(13);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 110];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 79];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 102];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 102];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 44];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 80];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 117];#memory_int := #memory_int[#t~string52.base,3 + #t~string52.offset := 109];#memory_int := #memory_int[#t~string52.base,4 + #t~string52.offset := 112];#memory_int := #memory_int[#t~string52.base,5 + #t~string52.offset := 58];#memory_int := #memory_int[#t~string52.base,6 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 110];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,3 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 41];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 32];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 10];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(13);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 77];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 101];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 116];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 104];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 67];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 82];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 73];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 84];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 75];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 17#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 3#L175true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 97#L168true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 47#L183true main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 44#L139true assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 164#L112true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 56#L565-3true [2018-11-18 16:33:49,550 INFO L796 eck$LassoCheckResult]: Loop: 56#L565-3true assume true; 53#L565-1true assume !false; 11#L566true assume test_~splverifierCounter~0 < 4; 116#L567true test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 147#L575true assume !(0 != test_~tmp~4); 128#L575-2true test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 19#L585true assume !(0 != test_~tmp___0~0); 27#L585-2true test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 76#L595true assume 0 != test_~tmp___2~0; 52#L601-2true assume { :begin_inline_timeShift } true; 45#L637true assume !(0 != ~pumpRunning~0); 48#L637-2true assume !(0 != ~systemActive~0); 113#L644-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_#t~ret73, __utac_acc__Specification3_spec__1_#t~ret74, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 84#L884-3true __utac_acc__Specification3_spec__1_#t~ret72 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret72;havoc __utac_acc__Specification3_spec__1_#t~ret72; 138#L944true assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 98#L950-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 5#L654true assume { :end_inline_timeShift } true; 56#L565-3true [2018-11-18 16:33:49,555 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:33:49,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 16:33:49,558 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:33:49,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:33:49,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:49,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:33:49,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:49,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:33:49,717 INFO L82 PathProgramCache]: Analyzing trace with hash -753041339, now seen corresponding path program 1 times [2018-11-18 16:33:49,717 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:33:49,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:33:49,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:49,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:33:49,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:49,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:33:49,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1684722943, now seen corresponding path program 1 times [2018-11-18 16:33:49,731 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:33:49,731 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:33:49,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:49,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:33:49,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:33:49,870 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 16:33:49,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:33:49,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 16:33:49,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:33:49,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:33:49,964 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 6 states. [2018-11-18 16:33:50,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:33:50,248 INFO L93 Difference]: Finished difference Result 443 states and 578 transitions. [2018-11-18 16:33:50,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 16:33:50,250 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 443 states and 578 transitions. [2018-11-18 16:33:50,257 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 289 [2018-11-18 16:33:50,264 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 443 states to 413 states and 548 transitions. [2018-11-18 16:33:50,265 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 413 [2018-11-18 16:33:50,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 413 [2018-11-18 16:33:50,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 413 states and 548 transitions. [2018-11-18 16:33:50,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:33:50,269 INFO L705 BuchiCegarLoop]: Abstraction has 413 states and 548 transitions. [2018-11-18 16:33:50,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states and 548 transitions. [2018-11-18 16:33:50,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 239. [2018-11-18 16:33:50,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2018-11-18 16:33:50,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 317 transitions. [2018-11-18 16:33:50,303 INFO L728 BuchiCegarLoop]: Abstraction has 239 states and 317 transitions. [2018-11-18 16:33:50,303 INFO L608 BuchiCegarLoop]: Abstraction has 239 states and 317 transitions. [2018-11-18 16:33:50,303 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 16:33:50,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 239 states and 317 transitions. [2018-11-18 16:33:50,305 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2018-11-18 16:33:50,305 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:33:50,305 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:33:50,306 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:33:50,306 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] [2018-11-18 16:33:50,307 INFO L794 eck$LassoCheckResult]: Stem: 809#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(30);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(9);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(21);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(25);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(13);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 110];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 79];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 102];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 102];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 44];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 80];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 117];#memory_int := #memory_int[#t~string52.base,3 + #t~string52.offset := 109];#memory_int := #memory_int[#t~string52.base,4 + #t~string52.offset := 112];#memory_int := #memory_int[#t~string52.base,5 + #t~string52.offset := 58];#memory_int := #memory_int[#t~string52.base,6 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 110];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,3 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 41];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 32];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 10];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(13);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 77];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 101];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 116];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 104];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 67];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 82];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 73];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 84];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 75];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 682#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 653#L175 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 654#L168 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 738#L183 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 732#L139 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 733#L112 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 658#L565-3 [2018-11-18 16:33:50,307 INFO L796 eck$LassoCheckResult]: Loop: 658#L565-3 assume true; 744#L565-1 assume !false; 670#L566 assume test_~splverifierCounter~0 < 4; 671#L567 test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 801#L575 assume !(0 != test_~tmp~4); 780#L575-2 test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 685#L585 assume !(0 != test_~tmp___0~0); 687#L585-2 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 702#L595 assume 0 != test_~tmp___2~0; 742#L601-2 assume { :begin_inline_timeShift } true; 734#L637 assume !(0 != ~pumpRunning~0); 735#L637-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 714#L695 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret41, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 715#L669-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 768#L661-3 assume { :end_inline_processEnvironment__wrappee__base } true; 673#L669-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 724#L695-1 assume { :end_inline_processEnvironment } true; 725#L644-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_#t~ret73, __utac_acc__Specification3_spec__1_#t~ret74, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 773#L884-3 __utac_acc__Specification3_spec__1_#t~ret72 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret72;havoc __utac_acc__Specification3_spec__1_#t~ret72; 774#L944 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 711#L950-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 657#L654 assume { :end_inline_timeShift } true; 658#L565-3 [2018-11-18 16:33:50,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:33:50,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 16:33:50,307 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:33:50,308 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:33:50,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:50,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:33:50,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:50,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:33:50,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1972854018, now seen corresponding path program 1 times [2018-11-18 16:33:50,354 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:33:50,354 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:33:50,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:50,355 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:33:50,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:33:50,382 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 16:33:50,383 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:33:50,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 16:33:50,383 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 16:33:50,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 16:33:50,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 16:33:50,384 INFO L87 Difference]: Start difference. First operand 239 states and 317 transitions. cyclomatic complexity: 81 Second operand 3 states. [2018-11-18 16:33:50,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:33:50,480 INFO L93 Difference]: Finished difference Result 303 states and 385 transitions. [2018-11-18 16:33:50,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 16:33:50,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 303 states and 385 transitions. [2018-11-18 16:33:50,483 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 217 [2018-11-18 16:33:50,484 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 303 states to 303 states and 385 transitions. [2018-11-18 16:33:50,484 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 303 [2018-11-18 16:33:50,484 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 303 [2018-11-18 16:33:50,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 303 states and 385 transitions. [2018-11-18 16:33:50,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:33:50,489 INFO L705 BuchiCegarLoop]: Abstraction has 303 states and 385 transitions. [2018-11-18 16:33:50,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states and 385 transitions. [2018-11-18 16:33:50,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2018-11-18 16:33:50,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2018-11-18 16:33:50,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 385 transitions. [2018-11-18 16:33:50,499 INFO L728 BuchiCegarLoop]: Abstraction has 303 states and 385 transitions. [2018-11-18 16:33:50,499 INFO L608 BuchiCegarLoop]: Abstraction has 303 states and 385 transitions. [2018-11-18 16:33:50,500 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 16:33:50,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 303 states and 385 transitions. [2018-11-18 16:33:50,501 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 217 [2018-11-18 16:33:50,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:33:50,502 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:33:50,502 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:33:50,503 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] [2018-11-18 16:33:50,503 INFO L794 eck$LassoCheckResult]: Stem: 1361#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(30);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(9);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(21);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(25);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(13);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 110];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 79];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 102];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 102];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 44];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 80];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 117];#memory_int := #memory_int[#t~string52.base,3 + #t~string52.offset := 109];#memory_int := #memory_int[#t~string52.base,4 + #t~string52.offset := 112];#memory_int := #memory_int[#t~string52.base,5 + #t~string52.offset := 58];#memory_int := #memory_int[#t~string52.base,6 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 110];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,3 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 41];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 32];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 10];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(13);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 77];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 101];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 116];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 104];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 67];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 82];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 73];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 84];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 75];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1230#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 1201#L175 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1202#L168 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 1284#L183 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1279#L139 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 1280#L112 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1206#L565-3 [2018-11-18 16:33:50,503 INFO L796 eck$LassoCheckResult]: Loop: 1206#L565-3 assume true; 1289#L565-1 assume !false; 1218#L566 assume test_~splverifierCounter~0 < 4; 1219#L567 test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 1352#L575 assume !(0 != test_~tmp~4); 1331#L575-2 test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 1233#L585 assume !(0 != test_~tmp___0~0); 1235#L585-2 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 1250#L595 assume 0 != test_~tmp___2~0; 1287#L601-2 assume { :begin_inline_timeShift } true; 1281#L637 assume !(0 != ~pumpRunning~0); 1282#L637-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1264#L695 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret41, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 1265#L669-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret61, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1345#L924-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1273#L929-1 isHighWaterLevel_#t~ret61 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret61;havoc isHighWaterLevel_#t~ret61; 1274#L814-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1379#L814-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1362#L820-1 processEnvironment__wrappee__methaneQuery_#t~ret41 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret41;havoc processEnvironment__wrappee__methaneQuery_#t~ret41; 1238#L673-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 1240#L661-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1221#L669-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1271#L695-1 assume { :end_inline_processEnvironment } true; 1272#L644-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_#t~ret73, __utac_acc__Specification3_spec__1_#t~ret74, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 1321#L884-3 __utac_acc__Specification3_spec__1_#t~ret72 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret72;havoc __utac_acc__Specification3_spec__1_#t~ret72; 1322#L944 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 1259#L950-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1205#L654 assume { :end_inline_timeShift } true; 1206#L565-3 [2018-11-18 16:33:50,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:33:50,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 16:33:50,504 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:33:50,504 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:33:50,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:50,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:33:50,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:50,540 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:33:50,541 INFO L82 PathProgramCache]: Analyzing trace with hash -88772586, now seen corresponding path program 1 times [2018-11-18 16:33:50,541 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:33:50,541 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:33:50,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:50,542 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:33:50,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:50,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:33:50,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1339754534, now seen corresponding path program 1 times [2018-11-18 16:33:50,551 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:33:50,551 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:33:50,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:50,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:33:50,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:33:50,626 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 16:33:50,626 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:33:50,627 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 16:33:50,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 16:33:50,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 16:33:50,734 INFO L87 Difference]: Start difference. First operand 303 states and 385 transitions. cyclomatic complexity: 85 Second operand 5 states. [2018-11-18 16:33:50,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:33:50,880 INFO L93 Difference]: Finished difference Result 1034 states and 1307 transitions. [2018-11-18 16:33:50,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 16:33:50,880 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1034 states and 1307 transitions. [2018-11-18 16:33:50,884 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 771 [2018-11-18 16:33:50,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1034 states to 1034 states and 1307 transitions. [2018-11-18 16:33:50,886 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1034 [2018-11-18 16:33:50,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1034 [2018-11-18 16:33:50,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1034 states and 1307 transitions. [2018-11-18 16:33:50,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:33:50,888 INFO L705 BuchiCegarLoop]: Abstraction has 1034 states and 1307 transitions. [2018-11-18 16:33:50,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states and 1307 transitions. [2018-11-18 16:33:50,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 599. [2018-11-18 16:33:50,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2018-11-18 16:33:50,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 751 transitions. [2018-11-18 16:33:50,907 INFO L728 BuchiCegarLoop]: Abstraction has 599 states and 751 transitions. [2018-11-18 16:33:50,907 INFO L608 BuchiCegarLoop]: Abstraction has 599 states and 751 transitions. [2018-11-18 16:33:50,907 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 16:33:50,907 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 599 states and 751 transitions. [2018-11-18 16:33:50,909 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 434 [2018-11-18 16:33:50,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:33:50,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:33:50,910 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:33:50,910 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] [2018-11-18 16:33:50,910 INFO L794 eck$LassoCheckResult]: Stem: 2729#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(30);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(9);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(21);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(25);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(13);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 110];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 79];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 102];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 102];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 44];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 80];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 117];#memory_int := #memory_int[#t~string52.base,3 + #t~string52.offset := 109];#memory_int := #memory_int[#t~string52.base,4 + #t~string52.offset := 112];#memory_int := #memory_int[#t~string52.base,5 + #t~string52.offset := 58];#memory_int := #memory_int[#t~string52.base,6 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 110];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,3 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 41];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 32];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 10];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(13);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 77];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 101];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 116];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 104];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 67];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 82];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 73];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 84];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 75];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 2587#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 2556#L175 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2557#L168 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 2639#L183 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 2633#L139 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 2634#L112 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2764#L565-3 [2018-11-18 16:33:50,910 INFO L796 eck$LassoCheckResult]: Loop: 2764#L565-3 assume true; 3097#L565-1 assume !false; 3095#L566 assume test_~splverifierCounter~0 < 4; 3096#L567 test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 3133#L575 assume !(0 != test_~tmp~4); 3130#L575-2 test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 3128#L585 assume !(0 != test_~tmp___0~0); 3125#L585-2 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 3118#L595 assume 0 != test_~tmp___2~0; 3112#L601-2 assume { :begin_inline_timeShift } true; 3111#L637 assume !(0 != ~pumpRunning~0); 2640#L637-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 2618#L695 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret41, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 2619#L669-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret61, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 2705#L924-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 2628#L929-1 isHighWaterLevel_#t~ret61 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret61;havoc isHighWaterLevel_#t~ret61; 2629#L814-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 2752#L814-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 2728#L820-1 processEnvironment__wrappee__methaneQuery_#t~ret41 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret41;havoc processEnvironment__wrappee__methaneQuery_#t~ret41; 2591#L673-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 2593#L661-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2573#L669-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2626#L695-1 assume { :end_inline_processEnvironment } true; 2627#L644-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_#t~ret73, __utac_acc__Specification3_spec__1_#t~ret74, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 3105#L884-3 __utac_acc__Specification3_spec__1_#t~ret72 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret72;havoc __utac_acc__Specification3_spec__1_#t~ret72; 3104#L944 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~9);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 3103#L916 __utac_acc__Specification3_spec__1_#t~ret73 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret73;havoc __utac_acc__Specification3_spec__1_#t~ret73; 3100#L950 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 3099#L950-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3098#L654 assume { :end_inline_timeShift } true; 2764#L565-3 [2018-11-18 16:33:50,911 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:33:50,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2018-11-18 16:33:50,911 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:33:50,911 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:33:50,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:50,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:33:50,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:50,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:50,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:33:50,938 INFO L82 PathProgramCache]: Analyzing trace with hash 590145193, now seen corresponding path program 1 times [2018-11-18 16:33:50,938 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:33:50,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:33:50,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:50,939 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:33:50,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:50,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:33:50,948 INFO L82 PathProgramCache]: Analyzing trace with hash 987336045, now seen corresponding path program 1 times [2018-11-18 16:33:50,948 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:33:50,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:33:50,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:50,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:33:50,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:33:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:51,138 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2018-11-18 16:34:24,729 WARN L180 SmtUtils]: Spent 33.55 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 16:34:45,062 WARN L180 SmtUtils]: Spent 20.33 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 16:34:45,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 04:34:45 BoogieIcfgContainer [2018-11-18 16:34:45,129 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 16:34:45,129 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:34:45,129 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:34:45,130 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:34:45,130 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:33:49" (3/4) ... [2018-11-18 16:34:45,134 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 16:34:45,181 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_871e3fb0-5bec-4390-a34c-eb26f90ca8c3/bin-2019/uautomizer/witness.graphml [2018-11-18 16:34:45,182 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:34:45,182 INFO L168 Benchmark]: Toolchain (without parser) took 57044.79 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 283.6 MB). Free memory was 951.7 MB in the beginning and 1.2 GB in the end (delta: -224.3 MB). Peak memory consumption was 59.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:34:45,183 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:34:45,183 INFO L168 Benchmark]: CACSL2BoogieTranslator took 456.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 43.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:34:45,183 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:34:45,184 INFO L168 Benchmark]: Boogie Preprocessor took 35.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:34:45,184 INFO L168 Benchmark]: RCFGBuilder took 755.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:34:45,184 INFO L168 Benchmark]: BuchiAutomizer took 55680.43 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 166.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -151.2 MB). Peak memory consumption was 337.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:34:45,185 INFO L168 Benchmark]: Witness Printer took 52.33 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:34:45,187 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 456.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 43.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 62.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 755.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 55680.43 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 166.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -151.2 MB). Peak memory consumption was 337.5 MB. Max. memory is 11.5 GB. * Witness Printer took 52.33 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 599 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 55.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 54.8s. Construction of modules took 0.3s. 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, 609 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 599 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 832 SDtfs, 2013 SDslu, 2253 SDs, 0 SdLazy, 211 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 565]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7974384f=0, NULL=0, "Env(Water:%i"=0, retValue_acc=0, "Pump(System:"=0, retValue_acc=1, "Pump(System:"=19, ")"=39, "\n"=0, "Env(Water:%i"=11, "Off"=14, methaneLevelCritical=0, tmp___0=0, ",Meth:"=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e840a13=0, "OK"=0, "libacc.c"=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c021ffa=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@769fe0b5=0, "CRIT"=0, tmp___1=0, "i > 0 && i <= this->argsCount"=27, "i > 0 && i <= this->argsCount"=31, "i > 0 && i <= this->argsCount"=35, cleanupTimeShifts=4, "__utac__get_this_argtype"=20, "__utac__get_this_arg"=28, "__utac__get_this_argtype"=24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cc54d8b=159, "Off"=17, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@727a03d8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3966ac5e=0, tmp=0, tmp___0=1, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32004a5d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34da282a=0, NULL=0, systemActive=1, waterLevel=1, "OK"=38, \result=1, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ac3e652=0, ") "=12, retValue_acc=0, \result=0, "On"=0, tmp___0=0, ",Pump:"=0, "Off"=0, "\n"=8, ") "=0, "Off"=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, ",Pump:"=16, "libacc.c"=34, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a083a4e=0, "libacc.c"=0, "__utac__get_this_argtype"=0, \result=1, "On"=18, "CRIT"=40, "__utac__get_this_arg"=33, ")"=0, retValue_acc=1, tmp=1, tmp___2=159, retValue_acc=1, "libacc.c"=26, splverifierCounter=0, \result=0, tmp___1=0, head=0, "libacc.c"=29, "libacc.c"=0, tmp=0, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=23, "__utac__get_this_argtype"=0, "__utac__get_this_arg"=0, "On"=15, "On"=0, ",Meth:"=37, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 565]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L485] FCALL "i > 0 && i <= this->argsCount" [L485] FCALL "libacc.c" [L486] FCALL "__utac__get_this_arg" [L492] FCALL "i > 0 && i <= this->argsCount" [L492] FCALL "libacc.c" [L493] FCALL "__utac__get_this_arg" [L531] FCALL "i > 0 && i <= this->argsCount" [L531] FCALL "libacc.c" [L532] FCALL "__utac__get_this_argtype" [L538] FCALL "i > 0 && i <= this->argsCount" [L538] FCALL "libacc.c" [L539] FCALL "__utac__get_this_argtype" [L774] FCALL "Pump(System:" [L778] FCALL "On" [L782] FCALL "Off" [L786] FCALL ",Pump:" [L790] FCALL "On" [L794] FCALL "Off" [L798] FCALL ") " [L800] FCALL "\n" [L893] FCALL "Env(Water:%i" [L894] FCALL ",Meth:" [L898] FCALL "CRIT" [L902] FCALL "OK" [L906] FCALL ")" [L49] int cleanupTimeShifts = 4; [L629] int pumpRunning = 0; [L630] int systemActive = 1; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L130] int retValue_acc ; [L131] int tmp ; [L135] FCALL select_helpers() [L136] FCALL select_features() [L137] CALL, EXPR valid_product() [L179] int retValue_acc ; [L182] retValue_acc = 1 [L183] RET return (retValue_acc); [L137] EXPR valid_product() [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) [L141] FCALL setup() [L142] CALL runTest() [L121] CALL test() [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 Loop: [L565] COND TRUE 1 [L567] COND TRUE splverifierCounter < 4 [L573] tmp = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp)) [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND TRUE \read(tmp___2) [L610] CALL timeShift() [L637] COND FALSE !(\read(pumpRunning)) [L644] COND TRUE \read(systemActive) [L646] CALL processEnvironment() [L692] int tmp ; [L695] COND FALSE !(\read(pumpRunning)) [L710] CALL processEnvironment__wrappee__methaneQuery() [L666] int tmp ; [L669] COND TRUE ! pumpRunning [L671] CALL, EXPR isHighWaterLevel() [L806] int retValue_acc ; [L807] int tmp ; [L808] int tmp___0 ; [L812] CALL, EXPR isHighWaterSensorDry() [L921] int retValue_acc ; [L924] COND TRUE waterLevel < 2 [L925] retValue_acc = 1 [L926] RET return (retValue_acc); [L812] EXPR isHighWaterSensorDry() [L812] tmp = isHighWaterSensorDry() [L814] COND TRUE \read(tmp) [L815] tmp___0 = 0 [L819] retValue_acc = tmp___0 [L820] RET return (retValue_acc); [L671] EXPR isHighWaterLevel() [L671] tmp = isHighWaterLevel() [L673] COND FALSE !(\read(tmp)) [L679] RET, FCALL processEnvironment__wrappee__base() [L710] RET processEnvironment__wrappee__methaneQuery() [L646] processEnvironment() [L652] CALL __utac_acc__Specification3_spec__1() [L936] int tmp ; [L937] int tmp___0 ; [L938] int tmp___1 ; [L942] CALL, EXPR isMethaneLevelCritical() [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] RET return (retValue_acc); [L942] EXPR isMethaneLevelCritical() [L942] tmp = isMethaneLevelCritical() [L944] COND FALSE !(\read(tmp)) [L948] CALL, EXPR getWaterLevel() [L912] int retValue_acc ; [L915] retValue_acc = waterLevel [L916] RET return (retValue_acc); [L948] EXPR getWaterLevel() [L948] tmp___0 = getWaterLevel() [L950] COND FALSE, RET !(tmp___0 == 2) [L652] RET __utac_acc__Specification3_spec__1() [L610] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...