./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product56_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a4259f24-f68f-4008-8511-1501b80a6de7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a4259f24-f68f-4008-8511-1501b80a6de7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a4259f24-f68f-4008-8511-1501b80a6de7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a4259f24-f68f-4008-8511-1501b80a6de7/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product56_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a4259f24-f68f-4008-8511-1501b80a6de7/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a4259f24-f68f-4008-8511-1501b80a6de7/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 38247fcadf5b4c668eea6d964bf6488ba6812482 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-01 15:13:06,456 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 15:13:06,457 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 15:13:06,466 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 15:13:06,466 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 15:13:06,467 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 15:13:06,468 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 15:13:06,469 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 15:13:06,470 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 15:13:06,471 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 15:13:06,472 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 15:13:06,472 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 15:13:06,473 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 15:13:06,473 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 15:13:06,474 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 15:13:06,475 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 15:13:06,475 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 15:13:06,477 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 15:13:06,478 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 15:13:06,479 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 15:13:06,480 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 15:13:06,481 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 15:13:06,483 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 15:13:06,483 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 15:13:06,483 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 15:13:06,484 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 15:13:06,484 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 15:13:06,485 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 15:13:06,485 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 15:13:06,486 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 15:13:06,486 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 15:13:06,487 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 15:13:06,487 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 15:13:06,487 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 15:13:06,488 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 15:13:06,489 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 15:13:06,489 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a4259f24-f68f-4008-8511-1501b80a6de7/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-01 15:13:06,500 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 15:13:06,500 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 15:13:06,501 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 15:13:06,501 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 15:13:06,501 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 15:13:06,501 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-01 15:13:06,501 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-01 15:13:06,502 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-01 15:13:06,502 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-01 15:13:06,502 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-01 15:13:06,502 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-01 15:13:06,502 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 15:13:06,502 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 15:13:06,502 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 15:13:06,503 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 15:13:06,503 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 15:13:06,503 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 15:13:06,503 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-01 15:13:06,503 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-01 15:13:06,503 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-01 15:13:06,503 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 15:13:06,504 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 15:13:06,504 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-01 15:13:06,504 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 15:13:06,504 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-01 15:13:06,504 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 15:13:06,504 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 15:13:06,504 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-01 15:13:06,504 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 15:13:06,505 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 15:13:06,505 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-01 15:13:06,505 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-01 15:13:06,505 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_a4259f24-f68f-4008-8511-1501b80a6de7/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 -> 38247fcadf5b4c668eea6d964bf6488ba6812482 [2018-12-01 15:13:06,528 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 15:13:06,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 15:13:06,539 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 15:13:06,541 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 15:13:06,541 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 15:13:06,541 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a4259f24-f68f-4008-8511-1501b80a6de7/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product56_true-unreach-call_false-termination.cil.c [2018-12-01 15:13:06,579 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4259f24-f68f-4008-8511-1501b80a6de7/bin-2019/uautomizer/data/3d6461690/c985981008434f5bbeb8550ad3dd29bb/FLAG08c70dbcb [2018-12-01 15:13:07,020 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 15:13:07,020 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a4259f24-f68f-4008-8511-1501b80a6de7/sv-benchmarks/c/product-lines/minepump_spec5_product56_true-unreach-call_false-termination.cil.c [2018-12-01 15:13:07,026 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4259f24-f68f-4008-8511-1501b80a6de7/bin-2019/uautomizer/data/3d6461690/c985981008434f5bbeb8550ad3dd29bb/FLAG08c70dbcb [2018-12-01 15:13:07,034 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a4259f24-f68f-4008-8511-1501b80a6de7/bin-2019/uautomizer/data/3d6461690/c985981008434f5bbeb8550ad3dd29bb [2018-12-01 15:13:07,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 15:13:07,037 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 15:13:07,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 15:13:07,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 15:13:07,039 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 15:13:07,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:13:07" (1/1) ... [2018-12-01 15:13:07,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:07, skipping insertion in model container [2018-12-01 15:13:07,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:13:07" (1/1) ... [2018-12-01 15:13:07,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 15:13:07,070 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 15:13:07,225 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 15:13:07,266 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 15:13:07,307 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 15:13:07,324 INFO L195 MainTranslator]: Completed translation [2018-12-01 15:13:07,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:07 WrapperNode [2018-12-01 15:13:07,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 15:13:07,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 15:13:07,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 15:13:07,325 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 15:13:07,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:07" (1/1) ... [2018-12-01 15:13:07,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:07" (1/1) ... [2018-12-01 15:13:07,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 15:13:07,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 15:13:07,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 15:13:07,366 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 15:13:07,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:07" (1/1) ... [2018-12-01 15:13:07,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:07" (1/1) ... [2018-12-01 15:13:07,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:07" (1/1) ... [2018-12-01 15:13:07,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:07" (1/1) ... [2018-12-01 15:13:07,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:07" (1/1) ... [2018-12-01 15:13:07,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:07" (1/1) ... [2018-12-01 15:13:07,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:07" (1/1) ... [2018-12-01 15:13:07,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 15:13:07,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 15:13:07,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 15:13:07,394 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 15:13:07,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4259f24-f68f-4008-8511-1501b80a6de7/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 [2018-12-01 15:13:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 15:13:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-01 15:13:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 15:13:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 15:13:07,852 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 15:13:07,852 INFO L280 CfgBuilder]: Removed 296 assue(true) statements. [2018-12-01 15:13:07,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:13:07 BoogieIcfgContainer [2018-12-01 15:13:07,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 15:13:07,853 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-01 15:13:07,853 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-01 15:13:07,856 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-01 15:13:07,857 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 15:13:07,857 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:13:07" (1/3) ... [2018-12-01 15:13:07,857 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60e9d808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:13:07, skipping insertion in model container [2018-12-01 15:13:07,858 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 15:13:07,858 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:07" (2/3) ... [2018-12-01 15:13:07,858 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60e9d808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:13:07, skipping insertion in model container [2018-12-01 15:13:07,858 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 15:13:07,858 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:13:07" (3/3) ... [2018-12-01 15:13:07,859 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product56_true-unreach-call_false-termination.cil.c [2018-12-01 15:13:07,893 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 15:13:07,893 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-01 15:13:07,893 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-01 15:13:07,894 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-01 15:13:07,894 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 15:13:07,894 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 15:13:07,894 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-01 15:13:07,894 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 15:13:07,894 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-01 15:13:07,904 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 197 states. [2018-12-01 15:13:07,923 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 129 [2018-12-01 15:13:07,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 15:13:07,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 15:13:07,929 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-01 15:13:07,929 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 15:13:07,929 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-01 15:13:07,929 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 197 states. [2018-12-01 15:13:07,933 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 129 [2018-12-01 15:13:07,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 15:13:07,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 15:13:07,934 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-01 15:13:07,934 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 15:13:07,937 INFO L794 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string15.base, #t~string15.offset := #Ultimate.alloc(13);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(30);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(9);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(21);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(30);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(9);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4; 15#L-1true havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 156#L504true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 82#L512true main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 83#L1024true assume 0 != main_~tmp~10; 75#L1000true ~switchedOnBeforeTS~0 := 0; 71#L532true havoc test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 173#L553-1true [2018-12-01 15:13:07,937 INFO L796 eck$LassoCheckResult]: Loop: 173#L553-1true assume !false; 179#L421true assume test_~splverifierCounter~0 < 4; 79#L422true test_~tmp~5 := test_#t~nondet32;havoc test_#t~nondet32; 148#L430true assume !(0 != test_~tmp~5); 149#L430-1true test_~tmp___0~2 := test_#t~nondet33;havoc test_#t~nondet33; 87#L440true assume !(0 != test_~tmp___0~2); 88#L440-1true test_~tmp___2~0 := test_#t~nondet34;havoc test_#t~nondet34; 42#L450true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 113#L458-1true havoc __utac_acc__Specification5_spec__2_#t~ret37;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 18#L307true __utac_acc__Specification5_spec__2_#t~ret37 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret37;havoc __utac_acc__Specification5_spec__2_#t~ret37; 172#L542true assume !(0 != ~pumpRunning~0); 102#L170true assume !(0 != ~systemActive~0); 128#L177true havoc __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_#t~ret39, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 195#L123true __utac_acc__Specification5_spec__3_#t~ret38 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret38;havoc __utac_acc__Specification5_spec__3_#t~ret38; 171#L553true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 173#L553-1true [2018-12-01 15:13:07,940 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 15:13:07,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2018-12-01 15:13:07,942 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 15:13:07,942 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 15:13:07,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:13:07,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 15:13:07,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:13:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 15:13:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 15:13:08,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 15:13:08,085 INFO L82 PathProgramCache]: Analyzing trace with hash 680336182, now seen corresponding path program 1 times [2018-12-01 15:13:08,085 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 15:13:08,085 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 15:13:08,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:13:08,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 15:13:08,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:13:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:13:08,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:13:08,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 15:13:08,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 15:13:08,121 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 15:13:08,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 15:13:08,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 15:13:08,131 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 3 states. [2018-12-01 15:13:08,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 15:13:08,176 INFO L93 Difference]: Finished difference Result 387 states and 575 transitions. [2018-12-01 15:13:08,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 15:13:08,178 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 387 states and 575 transitions. [2018-12-01 15:13:08,182 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 254 [2018-12-01 15:13:08,186 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 387 states to 373 states and 560 transitions. [2018-12-01 15:13:08,187 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 373 [2018-12-01 15:13:08,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 373 [2018-12-01 15:13:08,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 373 states and 560 transitions. [2018-12-01 15:13:08,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 15:13:08,190 INFO L705 BuchiCegarLoop]: Abstraction has 373 states and 560 transitions. [2018-12-01 15:13:08,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states and 560 transitions. [2018-12-01 15:13:08,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 371. [2018-12-01 15:13:08,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2018-12-01 15:13:08,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 557 transitions. [2018-12-01 15:13:08,219 INFO L728 BuchiCegarLoop]: Abstraction has 371 states and 557 transitions. [2018-12-01 15:13:08,219 INFO L608 BuchiCegarLoop]: Abstraction has 371 states and 557 transitions. [2018-12-01 15:13:08,219 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-01 15:13:08,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 371 states and 557 transitions. [2018-12-01 15:13:08,221 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 252 [2018-12-01 15:13:08,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 15:13:08,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 15:13:08,221 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-01 15:13:08,221 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 15:13:08,222 INFO L794 eck$LassoCheckResult]: Stem: 795#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string15.base, #t~string15.offset := #Ultimate.alloc(13);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(30);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(9);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(21);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(30);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(9);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4; 616#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 617#L504 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 781#L512 main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 791#L1024 assume 0 != main_~tmp~10; 755#L1000 ~switchedOnBeforeTS~0 := 0; 752#L532 havoc test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 726#L553-1 [2018-12-01 15:13:08,222 INFO L796 eck$LassoCheckResult]: Loop: 726#L553-1 assume !false; 796#L421 assume test_~splverifierCounter~0 < 4; 762#L422 test_~tmp~5 := test_#t~nondet32;havoc test_#t~nondet32; 763#L430 assume !(0 != test_~tmp~5); 772#L430-1 test_~tmp___0~2 := test_#t~nondet33;havoc test_#t~nondet33; 773#L440 assume !(0 != test_~tmp___0~2); 767#L440-1 test_~tmp___2~0 := test_#t~nondet34;havoc test_#t~nondet34; 838#L450 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 670#L458-1 havoc __utac_acc__Specification5_spec__2_#t~ret37;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 622#L307 __utac_acc__Specification5_spec__2_#t~ret37 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret37;havoc __utac_acc__Specification5_spec__2_#t~ret37; 623#L542 assume !(0 != ~pumpRunning~0); 832#L170 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 833#L254 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret11, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 859#L228-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret10, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 671#L202-3 assume !(0 == ~pumpRunning~0); 672#L177 havoc __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_#t~ret39, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 827#L123 __utac_acc__Specification5_spec__3_#t~ret38 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret38;havoc __utac_acc__Specification5_spec__3_#t~ret38; 793#L553 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 726#L553-1 [2018-12-01 15:13:08,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 15:13:08,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2018-12-01 15:13:08,222 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 15:13:08,222 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 15:13:08,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:13:08,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 15:13:08,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:13:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 15:13:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 15:13:08,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 15:13:08,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1848123806, now seen corresponding path program 1 times [2018-12-01 15:13:08,251 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 15:13:08,251 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 15:13:08,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:13:08,252 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 15:13:08,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:13:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:13:08,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:13:08,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 15:13:08,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 15:13:08,263 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 15:13:08,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 15:13:08,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 15:13:08,264 INFO L87 Difference]: Start difference. First operand 371 states and 557 transitions. cyclomatic complexity: 189 Second operand 3 states. [2018-12-01 15:13:08,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 15:13:08,344 INFO L93 Difference]: Finished difference Result 398 states and 559 transitions. [2018-12-01 15:13:08,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 15:13:08,345 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 398 states and 559 transitions. [2018-12-01 15:13:08,348 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 279 [2018-12-01 15:13:08,351 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 398 states to 398 states and 559 transitions. [2018-12-01 15:13:08,351 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 398 [2018-12-01 15:13:08,352 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 398 [2018-12-01 15:13:08,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 398 states and 559 transitions. [2018-12-01 15:13:08,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 15:13:08,354 INFO L705 BuchiCegarLoop]: Abstraction has 398 states and 559 transitions. [2018-12-01 15:13:08,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states and 559 transitions. [2018-12-01 15:13:08,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2018-12-01 15:13:08,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2018-12-01 15:13:08,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 559 transitions. [2018-12-01 15:13:08,365 INFO L728 BuchiCegarLoop]: Abstraction has 398 states and 559 transitions. [2018-12-01 15:13:08,365 INFO L608 BuchiCegarLoop]: Abstraction has 398 states and 559 transitions. [2018-12-01 15:13:08,365 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-01 15:13:08,366 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 398 states and 559 transitions. [2018-12-01 15:13:08,367 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 279 [2018-12-01 15:13:08,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 15:13:08,368 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 15:13:08,368 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-01 15:13:08,369 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 15:13:08,369 INFO L794 eck$LassoCheckResult]: Stem: 1518#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string15.base, #t~string15.offset := #Ultimate.alloc(13);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(30);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(9);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(21);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(30);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(9);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4; 1385#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 1386#L504 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 1510#L512 main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 1515#L1024 assume 0 != main_~tmp~10; 1490#L1000 ~switchedOnBeforeTS~0 := 0; 1487#L532 havoc test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1488#L553-1 [2018-12-01 15:13:08,369 INFO L796 eck$LassoCheckResult]: Loop: 1488#L553-1 assume !false; 1562#L421 assume test_~splverifierCounter~0 < 4; 1557#L422 test_~tmp~5 := test_#t~nondet32;havoc test_#t~nondet32; 1558#L430 assume !(0 != test_~tmp~5); 1552#L430-1 test_~tmp___0~2 := test_#t~nondet33;havoc test_#t~nondet33; 1553#L440 assume !(0 != test_~tmp___0~2); 1547#L440-1 test_~tmp___2~0 := test_#t~nondet34;havoc test_#t~nondet34; 1548#L450 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1439#L458-1 havoc __utac_acc__Specification5_spec__2_#t~ret37;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1391#L307 __utac_acc__Specification5_spec__2_#t~ret37 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret37;havoc __utac_acc__Specification5_spec__2_#t~ret37; 1392#L542 assume !(0 != ~pumpRunning~0); 1517#L170 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1481#L254 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret11, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 1482#L228-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret10, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1428#L202-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret30, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1389#L131-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1390#L136-3 isHighWaterLevel_#t~ret30 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret30;havoc isHighWaterLevel_#t~ret30; 1418#L356-9 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 1415#L356-11 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1399#L362-3 processEnvironment__wrappee__highWaterSensor_#t~ret10 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret10;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10; 1400#L206-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1479#L177 havoc __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_#t~ret39, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1568#L123 __utac_acc__Specification5_spec__3_#t~ret38 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret38;havoc __utac_acc__Specification5_spec__3_#t~ret38; 1569#L553 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 1488#L553-1 [2018-12-01 15:13:08,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 15:13:08,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2018-12-01 15:13:08,369 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 15:13:08,369 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 15:13:08,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:13:08,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 15:13:08,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:13:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 15:13:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 15:13:08,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 15:13:08,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1709468010, now seen corresponding path program 1 times [2018-12-01 15:13:08,404 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 15:13:08,404 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 15:13:08,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:13:08,405 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 15:13:08,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:13:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:13:08,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:13:08,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 15:13:08,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-01 15:13:08,449 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 15:13:08,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 15:13:08,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 15:13:08,450 INFO L87 Difference]: Start difference. First operand 398 states and 559 transitions. cyclomatic complexity: 164 Second operand 5 states. [2018-12-01 15:13:08,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 15:13:08,684 INFO L93 Difference]: Finished difference Result 1823 states and 2579 transitions. [2018-12-01 15:13:08,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 15:13:08,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1823 states and 2579 transitions. [2018-12-01 15:13:08,695 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1262 [2018-12-01 15:13:08,704 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1823 states to 1823 states and 2579 transitions. [2018-12-01 15:13:08,704 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1823 [2018-12-01 15:13:08,706 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1823 [2018-12-01 15:13:08,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1823 states and 2579 transitions. [2018-12-01 15:13:08,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 15:13:08,709 INFO L705 BuchiCegarLoop]: Abstraction has 1823 states and 2579 transitions. [2018-12-01 15:13:08,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states and 2579 transitions. [2018-12-01 15:13:08,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 783. [2018-12-01 15:13:08,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2018-12-01 15:13:08,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1087 transitions. [2018-12-01 15:13:08,728 INFO L728 BuchiCegarLoop]: Abstraction has 783 states and 1087 transitions. [2018-12-01 15:13:08,728 INFO L608 BuchiCegarLoop]: Abstraction has 783 states and 1087 transitions. [2018-12-01 15:13:08,728 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-01 15:13:08,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 783 states and 1087 transitions. [2018-12-01 15:13:08,732 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 554 [2018-12-01 15:13:08,732 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 15:13:08,732 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 15:13:08,733 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-01 15:13:08,733 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] [2018-12-01 15:13:08,734 INFO L794 eck$LassoCheckResult]: Stem: 3769#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string15.base, #t~string15.offset := #Ultimate.alloc(13);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(30);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(9);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(21);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(30);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(9);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4; 3623#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 3624#L504 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 3754#L512 main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 3763#L1024 assume 0 != main_~tmp~10; 3735#L1000 ~switchedOnBeforeTS~0 := 0; 3732#L532 havoc test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3733#L553-1 [2018-12-01 15:13:08,734 INFO L796 eck$LassoCheckResult]: Loop: 3733#L553-1 assume !false; 4028#L421 assume test_~splverifierCounter~0 < 4; 4027#L422 test_~tmp~5 := test_#t~nondet32;havoc test_#t~nondet32; 4026#L430 assume !(0 != test_~tmp~5); 4024#L430-1 test_~tmp___0~2 := test_#t~nondet33;havoc test_#t~nondet33; 4023#L440 assume !(0 != test_~tmp___0~2); 4021#L440-1 test_~tmp___2~0 := test_#t~nondet34;havoc test_#t~nondet34; 4020#L450 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3988#L458-1 havoc __utac_acc__Specification5_spec__2_#t~ret37;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 4352#L307 __utac_acc__Specification5_spec__2_#t~ret37 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret37;havoc __utac_acc__Specification5_spec__2_#t~ret37; 3767#L542 assume !(0 != ~pumpRunning~0); 3768#L170 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 3727#L254 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret11, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 3728#L228-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret10, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 3671#L202-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret30, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 3631#L131-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 3632#L136-3 isHighWaterLevel_#t~ret30 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret30;havoc isHighWaterLevel_#t~ret30; 4102#L356-9 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 4101#L356-11 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 3640#L362-3 processEnvironment__wrappee__highWaterSensor_#t~ret10 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret10;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10; 3641#L206-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 3725#L177 havoc __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_#t~ret39, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 4033#L123 __utac_acc__Specification5_spec__3_#t~ret38 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret38;havoc __utac_acc__Specification5_spec__3_#t~ret38; 4032#L553 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 4031#L307-1 __utac_acc__Specification5_spec__3_#t~ret39 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret39;havoc __utac_acc__Specification5_spec__3_#t~ret39; 4029#L557 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 3733#L553-1 [2018-12-01 15:13:08,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 15:13:08,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2018-12-01 15:13:08,734 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 15:13:08,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 15:13:08,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:13:08,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 15:13:08,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:13:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 15:13:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 15:13:08,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 15:13:08,764 INFO L82 PathProgramCache]: Analyzing trace with hash 2121242117, now seen corresponding path program 1 times [2018-12-01 15:13:08,765 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 15:13:08,765 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 15:13:08,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:13:08,765 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 15:13:08,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:13:08,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 15:13:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 15:13:08,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 15:13:08,777 INFO L82 PathProgramCache]: Analyzing trace with hash 155030475, now seen corresponding path program 1 times [2018-12-01 15:13:08,777 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 15:13:08,777 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 15:13:08,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:13:08,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 15:13:08,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:13:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 15:13:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 15:13:14,169 WARN L180 SmtUtils]: Spent 5.22 s on a formula simplification. DAG size of input: 429 DAG size of output: 427 [2018-12-01 15:13:16,730 WARN L180 SmtUtils]: Spent 2.56 s on a formula simplification that was a NOOP. DAG size: 425 [2018-12-01 15:13:16,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:13:16 BoogieIcfgContainer [2018-12-01 15:13:16,764 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-01 15:13:16,764 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 15:13:16,764 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 15:13:16,764 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 15:13:16,764 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:13:07" (3/4) ... [2018-12-01 15:13:16,766 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-01 15:13:16,797 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a4259f24-f68f-4008-8511-1501b80a6de7/bin-2019/uautomizer/witness.graphml [2018-12-01 15:13:16,797 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 15:13:16,798 INFO L168 Benchmark]: Toolchain (without parser) took 9761.43 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 318.2 MB). Free memory was 956.0 MB in the beginning and 1.3 GB in the end (delta: -339.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 15:13:16,798 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 15:13:16,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -164.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-12-01 15:13:16,798 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-01 15:13:16,799 INFO L168 Benchmark]: Boogie Preprocessor took 27.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 15:13:16,799 INFO L168 Benchmark]: RCFGBuilder took 458.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.9 MB). Peak memory consumption was 93.9 MB. Max. memory is 11.5 GB. [2018-12-01 15:13:16,799 INFO L168 Benchmark]: BuchiAutomizer took 8910.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 181.4 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -285.0 MB). Peak memory consumption was 385.3 MB. Max. memory is 11.5 GB. [2018-12-01 15:13:16,799 INFO L168 Benchmark]: Witness Printer took 33.23 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2018-12-01 15:13:16,800 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 287.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -164.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 458.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.9 MB). Peak memory consumption was 93.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 8910.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 181.4 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -285.0 MB). Peak memory consumption was 385.3 MB. Max. memory is 11.5 GB. * Witness Printer took 33.23 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 783 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 8.3s. Construction of modules took 0.2s. 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, 1042 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 783 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 950 SDtfs, 1462 SDslu, 1515 SDs, 0 SdLazy, 242 SolverSat, 72 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 420]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, NULL=38, NULL=0, NULL=26, NULL=29, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1cdf0aaa=0, tmp=0, NULL=0, NULL=28, NULL=0, tmp___1=0, NULL=35, retValue_acc=0, NULL=45, cleanupTimeShifts=4, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cbb2ba4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d55b213=56, NULL=42, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ce51d47=0, NULL=0, NULL=0, waterLevel=1, NULL=36, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@293b6810=0, NULL=27, \result=1, retValue_acc=1, head=0, pumpRunning=0, retValue_acc=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32ff2b41=0, \result=1, NULL=24, NULL=0, NULL=0, tmp=1, tmp___0=0, NULL=33, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68471c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71cc1e94=0, NULL=17, tmp=0, head=0, NULL=22, NULL=20, NULL=40, NULL=0, NULL=0, NULL=37, NULL=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e2ae5ff=0, tmp=0, tmp=1, tmp___0=0, NULL=0, tmp=0, switchedOnBeforeTS=0, NULL=23, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=18, \result=1, \result=0, NULL=0, retValue_acc=0, \result=0, tmp___0=0, NULL=34, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e23e19=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b255d21=0, NULL=39, retValue_acc=1, NULL=19, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@396ae13=0, tmp___2=56, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=15, NULL=43, NULL=31, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L526] int switchedOnBeforeTS ; [L744] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L941] int cleanupTimeShifts = 4; [L1015] int retValue_acc ; [L1016] int tmp ; [L508] int retValue_acc ; [L511] retValue_acc = 1 [L512] return (retValue_acc); [L1022] tmp = valid_product() [L1024] COND TRUE \read(tmp) [L531] switchedOnBeforeTS = 0 [L411] int splverifierCounter ; [L412] int tmp ; [L413] int tmp___0 ; [L414] int tmp___1 ; [L415] int tmp___2 ; [L418] splverifierCounter = 0 Loop: [L420] COND TRUE 1 [L422] COND TRUE splverifierCounter < 4 [L428] tmp = __VERIFIER_nondet_int() [L430] COND FALSE !(\read(tmp)) [L438] tmp___0 = __VERIFIER_nondet_int() [L440] COND FALSE !(\read(tmp___0)) [L448] tmp___2 = __VERIFIER_nondet_int() [L450] COND TRUE \read(tmp___2) [L404] systemActive = 1 [L303] int retValue_acc ; [L306] retValue_acc = pumpRunning [L307] return (retValue_acc); [L540] switchedOnBeforeTS = isPumpRunning() [L170] COND FALSE !(\read(pumpRunning)) [L177] COND TRUE \read(systemActive) [L251] int tmp ; [L254] COND FALSE !(\read(pumpRunning)) [L225] int tmp ; [L228] COND FALSE !(\read(pumpRunning)) [L199] int tmp ; [L202] COND TRUE ! pumpRunning [L348] int retValue_acc ; [L349] int tmp ; [L350] int tmp___0 ; [L128] int retValue_acc ; [L131] COND TRUE waterLevel < 2 [L132] retValue_acc = 1 [L133] return (retValue_acc); [L354] tmp = isHighWaterSensorDry() [L356] COND TRUE \read(tmp) [L357] tmp___0 = 0 [L361] retValue_acc = tmp___0 [L362] return (retValue_acc); [L204] tmp = isHighWaterLevel() [L206] COND FALSE !(\read(tmp)) [L546] int tmp ; [L547] int tmp___0 ; [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L551] tmp = getWaterLevel() [L553] COND TRUE tmp != 2 [L303] int retValue_acc ; [L306] retValue_acc = pumpRunning [L307] return (retValue_acc); [L555] tmp___0 = isPumpRunning() [L557] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...