./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product48_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_26f34909-3272-4876-8db8-3e34fdc6f37d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_26f34909-3272-4876-8db8-3e34fdc6f37d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_26f34909-3272-4876-8db8-3e34fdc6f37d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_26f34909-3272-4876-8db8-3e34fdc6f37d/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product48_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_26f34909-3272-4876-8db8-3e34fdc6f37d/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_26f34909-3272-4876-8db8-3e34fdc6f37d/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 43ef5600519005fc88dd599d15644e5bf72b4abd ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.23-0cd3be1 [2018-11-28 12:40:34,333 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:40:34,334 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:40:34,343 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:40:34,343 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:40:34,344 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:40:34,344 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:40:34,345 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:40:34,347 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:40:34,347 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:40:34,348 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:40:34,348 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:40:34,349 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:40:34,350 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:40:34,350 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:40:34,351 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:40:34,351 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:40:34,353 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:40:34,354 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:40:34,355 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:40:34,356 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:40:34,357 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:40:34,358 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:40:34,358 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:40:34,358 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:40:34,359 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:40:34,359 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:40:34,360 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:40:34,360 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:40:34,361 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:40:34,361 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:40:34,362 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:40:34,362 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:40:34,362 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:40:34,363 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:40:34,363 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:40:34,363 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_26f34909-3272-4876-8db8-3e34fdc6f37d/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 12:40:34,372 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:40:34,372 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:40:34,373 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:40:34,373 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:40:34,374 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:40:34,374 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 12:40:34,374 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 12:40:34,374 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 12:40:34,374 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 12:40:34,374 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 12:40:34,375 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 12:40:34,375 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:40:34,375 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:40:34,375 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:40:34,375 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:40:34,375 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:40:34,375 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:40:34,376 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 12:40:34,376 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 12:40:34,376 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 12:40:34,376 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:40:34,376 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:40:34,376 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 12:40:34,377 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:40:34,377 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 12:40:34,377 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:40:34,377 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:40:34,377 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 12:40:34,377 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:40:34,377 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:40:34,378 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 12:40:34,378 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 12:40:34,379 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_26f34909-3272-4876-8db8-3e34fdc6f37d/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 -> 43ef5600519005fc88dd599d15644e5bf72b4abd [2018-11-28 12:40:34,405 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:40:34,414 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:40:34,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:40:34,418 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:40:34,418 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:40:34,418 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_26f34909-3272-4876-8db8-3e34fdc6f37d/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product48_false-unreach-call_false-termination.cil.c [2018-11-28 12:40:34,459 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_26f34909-3272-4876-8db8-3e34fdc6f37d/bin-2019/uautomizer/data/22b865092/567dc5550794409aa3c3cf032e071c1a/FLAG0f4d97c07 [2018-11-28 12:40:34,902 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:40:34,903 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_26f34909-3272-4876-8db8-3e34fdc6f37d/sv-benchmarks/c/product-lines/minepump_spec3_product48_false-unreach-call_false-termination.cil.c [2018-11-28 12:40:34,909 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_26f34909-3272-4876-8db8-3e34fdc6f37d/bin-2019/uautomizer/data/22b865092/567dc5550794409aa3c3cf032e071c1a/FLAG0f4d97c07 [2018-11-28 12:40:34,918 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_26f34909-3272-4876-8db8-3e34fdc6f37d/bin-2019/uautomizer/data/22b865092/567dc5550794409aa3c3cf032e071c1a [2018-11-28 12:40:34,920 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:40:34,921 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:40:34,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:40:34,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:40:34,924 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:40:34,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:40:34" (1/1) ... [2018-11-28 12:40:34,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5adb3118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:34, skipping insertion in model container [2018-11-28 12:40:34,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:40:34" (1/1) ... [2018-11-28 12:40:34,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:40:34,960 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:40:35,148 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:40:35,201 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:40:35,259 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:40:35,278 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:40:35,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:35 WrapperNode [2018-11-28 12:40:35,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:40:35,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:40:35,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:40:35,279 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:40:35,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:35" (1/1) ... [2018-11-28 12:40:35,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:35" (1/1) ... [2018-11-28 12:40:35,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:40:35,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:40:35,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:40:35,337 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:40:35,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:35" (1/1) ... [2018-11-28 12:40:35,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:35" (1/1) ... [2018-11-28 12:40:35,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:35" (1/1) ... [2018-11-28 12:40:35,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:35" (1/1) ... [2018-11-28 12:40:35,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:35" (1/1) ... [2018-11-28 12:40:35,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:35" (1/1) ... [2018-11-28 12:40:35,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:35" (1/1) ... [2018-11-28 12:40:35,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:40:35,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:40:35,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:40:35,373 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:40:35,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_26f34909-3272-4876-8db8-3e34fdc6f37d/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 [2018-11-28 12:40:35,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:40:35,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 12:40:35,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:40:35,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:40:36,023 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:40:36,024 INFO L280 CfgBuilder]: Removed 204 assue(true) statements. [2018-11-28 12:40:36,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:40:36 BoogieIcfgContainer [2018-11-28 12:40:36,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:40:36,024 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 12:40:36,024 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 12:40:36,028 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 12:40:36,029 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:40:36,029 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 12:40:34" (1/3) ... [2018-11-28 12:40:36,030 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4aeadb13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:40:36, skipping insertion in model container [2018-11-28 12:40:36,030 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:40:36,030 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:35" (2/3) ... [2018-11-28 12:40:36,030 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4aeadb13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:40:36, skipping insertion in model container [2018-11-28 12:40:36,031 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:40:36,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:40:36" (3/3) ... [2018-11-28 12:40:36,033 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product48_false-unreach-call_false-termination.cil.c [2018-11-28 12:40:36,071 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:40:36,072 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 12:40:36,072 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 12:40:36,072 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 12:40:36,072 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:40:36,072 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:40:36,072 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 12:40:36,072 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:40:36,072 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 12:40:36,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states. [2018-11-28 12:40:36,112 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2018-11-28 12:40:36,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:40:36,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:40:36,120 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 12:40:36,120 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:36,120 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 12:40:36,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states. [2018-11-28 12:40:36,125 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2018-11-28 12:40:36,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:40:36,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:40:36,126 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 12:40:36,126 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:36,129 INFO L794 eck$LassoCheckResult]: Stem: 101#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);~cleanupTimeShifts~0 := 4;~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); 9#L-1true havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 118#L74true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 115#L82true main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 13#L530true assume 0 != main_~tmp~5; 128#L506true havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 47#L105-1true [2018-11-28 12:40:36,130 INFO L796 eck$LassoCheckResult]: Loop: 47#L105-1true assume !false; 6#L555true assume test_~splverifierCounter~0 < 4; 92#L556true test_~tmp~6 := test_#t~nondet36;havoc test_#t~nondet36; 98#L564true assume !(0 != test_~tmp~6); 102#L564-1true test_~tmp___0~2 := test_#t~nondet37;havoc test_#t~nondet37; 10#L574true assume !(0 != test_~tmp___0~2); 12#L574-1true test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 55#L584true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 87#L592-1true assume !(0 != ~pumpRunning~0); 136#L236true assume !(0 != ~systemActive~0); 32#L243true havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 8#L172-3true __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 108#L99true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 47#L105-1true [2018-11-28 12:40:36,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:36,135 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2018-11-28 12:40:36,137 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:36,137 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:36,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:36,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:36,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:36,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:36,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:36,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1669770369, now seen corresponding path program 1 times [2018-11-28 12:40:36,310 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:36,310 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:36,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:36,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:36,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:40:36,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:40:36,348 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:40:36,348 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:40:36,351 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 12:40:36,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:40:36,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:40:36,363 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 3 states. [2018-11-28 12:40:36,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:40:36,424 INFO L93 Difference]: Finished difference Result 262 states and 378 transitions. [2018-11-28 12:40:36,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:40:36,426 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 378 transitions. [2018-11-28 12:40:36,432 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 170 [2018-11-28 12:40:36,437 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 248 states and 363 transitions. [2018-11-28 12:40:36,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 248 [2018-11-28 12:40:36,440 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 248 [2018-11-28 12:40:36,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 248 states and 363 transitions. [2018-11-28 12:40:36,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:40:36,442 INFO L705 BuchiCegarLoop]: Abstraction has 248 states and 363 transitions. [2018-11-28 12:40:36,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states and 363 transitions. [2018-11-28 12:40:36,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 246. [2018-11-28 12:40:36,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-11-28 12:40:36,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 360 transitions. [2018-11-28 12:40:36,480 INFO L728 BuchiCegarLoop]: Abstraction has 246 states and 360 transitions. [2018-11-28 12:40:36,481 INFO L608 BuchiCegarLoop]: Abstraction has 246 states and 360 transitions. [2018-11-28 12:40:36,481 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 12:40:36,481 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 246 states and 360 transitions. [2018-11-28 12:40:36,483 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2018-11-28 12:40:36,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:40:36,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:40:36,484 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 12:40:36,484 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:36,484 INFO L794 eck$LassoCheckResult]: Stem: 535#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);~cleanupTimeShifts~0 := 4;~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); 418#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 419#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 544#L82 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 426#L530 assume 0 != main_~tmp~5; 427#L506 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 549#L105-1 [2018-11-28 12:40:36,485 INFO L796 eck$LassoCheckResult]: Loop: 549#L105-1 assume !false; 560#L555 assume test_~splverifierCounter~0 < 4; 559#L556 test_~tmp~6 := test_#t~nondet36;havoc test_#t~nondet36; 558#L564 assume !(0 != test_~tmp~6); 536#L564-1 test_~tmp___0~2 := test_#t~nondet37;havoc test_#t~nondet37; 420#L574 assume !(0 != test_~tmp___0~2); 421#L574-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 425#L584 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 493#L592-1 assume !(0 != ~pumpRunning~0); 504#L236 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 550#L294 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret14, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 583#L268-1 assume !(0 == ~pumpRunning~0); 578#L243 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 564#L172-3 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 563#L99 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 549#L105-1 [2018-11-28 12:40:36,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:36,485 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2018-11-28 12:40:36,485 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:36,485 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:36,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:36,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:36,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:36,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:36,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1411824415, now seen corresponding path program 1 times [2018-11-28 12:40:36,538 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:36,538 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:36,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:36,539 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:40:36,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:36,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:40:36,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:40:36,554 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:40:36,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:40:36,555 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 12:40:36,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:40:36,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:40:36,556 INFO L87 Difference]: Start difference. First operand 246 states and 360 transitions. cyclomatic complexity: 117 Second operand 3 states. [2018-11-28 12:40:36,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:40:36,675 INFO L93 Difference]: Finished difference Result 341 states and 478 transitions. [2018-11-28 12:40:36,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:40:36,677 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 341 states and 478 transitions. [2018-11-28 12:40:36,679 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2018-11-28 12:40:36,681 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 341 states to 341 states and 478 transitions. [2018-11-28 12:40:36,681 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 341 [2018-11-28 12:40:36,682 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 341 [2018-11-28 12:40:36,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 341 states and 478 transitions. [2018-11-28 12:40:36,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:40:36,684 INFO L705 BuchiCegarLoop]: Abstraction has 341 states and 478 transitions. [2018-11-28 12:40:36,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states and 478 transitions. [2018-11-28 12:40:36,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2018-11-28 12:40:36,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2018-11-28 12:40:36,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 478 transitions. [2018-11-28 12:40:36,698 INFO L728 BuchiCegarLoop]: Abstraction has 341 states and 478 transitions. [2018-11-28 12:40:36,698 INFO L608 BuchiCegarLoop]: Abstraction has 341 states and 478 transitions. [2018-11-28 12:40:36,698 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 12:40:36,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 341 states and 478 transitions. [2018-11-28 12:40:36,700 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2018-11-28 12:40:36,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:40:36,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:40:36,701 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 12:40:36,701 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] [2018-11-28 12:40:36,702 INFO L794 eck$LassoCheckResult]: Stem: 1149#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);~cleanupTimeShifts~0 := 4;~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); 1011#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 1012#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1161#L82 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 1019#L530 assume 0 != main_~tmp~5; 1020#L506 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1026#L105-1 [2018-11-28 12:40:36,702 INFO L796 eck$LassoCheckResult]: Loop: 1026#L105-1 assume !false; 1004#L555 assume test_~splverifierCounter~0 < 4; 1005#L556 test_~tmp~6 := test_#t~nondet36;havoc test_#t~nondet36; 1257#L564 assume !(0 != test_~tmp~6); 1150#L564-1 test_~tmp___0~2 := test_#t~nondet37;havoc test_#t~nondet37; 1013#L574 assume !(0 != test_~tmp___0~2); 1014#L574-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 1018#L584 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1098#L592-1 assume !(0 != ~pumpRunning~0); 1170#L236 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1171#L294 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret14, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1063#L268-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 1064#L212-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~4 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 1264#L217-1 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 1262#L413-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1106#L413-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 1107#L419-1 processEnvironment__wrappee__methaneQuery_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret14;havoc processEnvironment__wrappee__methaneQuery_#t~ret14; 1261#L272-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1); 1244#L243 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 1265#L172-3 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 1153#L99 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 1026#L105-1 [2018-11-28 12:40:36,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:36,702 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2018-11-28 12:40:36,702 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:36,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:36,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:36,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:36,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:36,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:36,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1301686415, now seen corresponding path program 1 times [2018-11-28 12:40:36,744 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:36,744 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:36,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:36,745 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:40:36,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:40:36,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:40:36,778 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:40:36,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:40:36,779 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 12:40:36,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:40:36,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:40:36,779 INFO L87 Difference]: Start difference. First operand 341 states and 478 transitions. cyclomatic complexity: 140 Second operand 4 states. [2018-11-28 12:40:36,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:40:36,871 INFO L93 Difference]: Finished difference Result 963 states and 1326 transitions. [2018-11-28 12:40:36,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:40:36,871 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 963 states and 1326 transitions. [2018-11-28 12:40:36,876 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 685 [2018-11-28 12:40:36,879 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 963 states to 963 states and 1326 transitions. [2018-11-28 12:40:36,879 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 963 [2018-11-28 12:40:36,880 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 963 [2018-11-28 12:40:36,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 963 states and 1326 transitions. [2018-11-28 12:40:36,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:40:36,882 INFO L705 BuchiCegarLoop]: Abstraction has 963 states and 1326 transitions. [2018-11-28 12:40:36,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states and 1326 transitions. [2018-11-28 12:40:36,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 365. [2018-11-28 12:40:36,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2018-11-28 12:40:36,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 502 transitions. [2018-11-28 12:40:36,898 INFO L728 BuchiCegarLoop]: Abstraction has 365 states and 502 transitions. [2018-11-28 12:40:36,898 INFO L608 BuchiCegarLoop]: Abstraction has 365 states and 502 transitions. [2018-11-28 12:40:36,898 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 12:40:36,899 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 365 states and 502 transitions. [2018-11-28 12:40:36,900 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2018-11-28 12:40:36,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:40:36,901 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:40:36,902 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 12:40:36,902 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] [2018-11-28 12:40:36,902 INFO L794 eck$LassoCheckResult]: Stem: 2463#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);~cleanupTimeShifts~0 := 4;~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); 2325#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 2326#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 2470#L82 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 2335#L530 assume 0 != main_~tmp~5; 2336#L506 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2340#L105-1 [2018-11-28 12:40:36,902 INFO L796 eck$LassoCheckResult]: Loop: 2340#L105-1 assume !false; 2318#L555 assume test_~splverifierCounter~0 < 4; 2319#L556 test_~tmp~6 := test_#t~nondet36;havoc test_#t~nondet36; 2459#L564 assume !(0 != test_~tmp~6); 2351#L564-1 test_~tmp___0~2 := test_#t~nondet37;havoc test_#t~nondet37; 2327#L574 assume !(0 != test_~tmp___0~2); 2328#L574-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 2332#L584 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2408#L592-1 assume !(0 != ~pumpRunning~0); 2453#L236 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 2486#L294 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret14, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 2565#L268-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 2433#L212-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~4 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 2434#L217-1 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 2452#L413-3 assume !(0 != isHighWaterLevel_~tmp~4);isHighWaterLevel_~tmp___0~1 := 1; 2420#L413-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 2388#L419-1 processEnvironment__wrappee__methaneQuery_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret14;havoc processEnvironment__wrappee__methaneQuery_#t~ret14; 2389#L272-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1); 2366#L243 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 2323#L172-3 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 2324#L99 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 2340#L105-1 [2018-11-28 12:40:36,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:36,903 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2018-11-28 12:40:36,903 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:36,903 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:36,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:36,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:36,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:36,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:36,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1218273519, now seen corresponding path program 1 times [2018-11-28 12:40:36,939 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:36,939 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:36,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:36,940 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:40:36,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:40:36,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:40:36,988 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:40:36,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:40:36,989 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 12:40:36,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:40:36,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:40:36,989 INFO L87 Difference]: Start difference. First operand 365 states and 502 transitions. cyclomatic complexity: 140 Second operand 5 states. [2018-11-28 12:40:37,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:40:37,092 INFO L93 Difference]: Finished difference Result 1094 states and 1498 transitions. [2018-11-28 12:40:37,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:40:37,094 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1094 states and 1498 transitions. [2018-11-28 12:40:37,099 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 788 [2018-11-28 12:40:37,102 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1094 states to 1094 states and 1498 transitions. [2018-11-28 12:40:37,102 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1094 [2018-11-28 12:40:37,103 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1094 [2018-11-28 12:40:37,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1094 states and 1498 transitions. [2018-11-28 12:40:37,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:40:37,104 INFO L705 BuchiCegarLoop]: Abstraction has 1094 states and 1498 transitions. [2018-11-28 12:40:37,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states and 1498 transitions. [2018-11-28 12:40:37,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 401. [2018-11-28 12:40:37,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2018-11-28 12:40:37,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 538 transitions. [2018-11-28 12:40:37,114 INFO L728 BuchiCegarLoop]: Abstraction has 401 states and 538 transitions. [2018-11-28 12:40:37,114 INFO L608 BuchiCegarLoop]: Abstraction has 401 states and 538 transitions. [2018-11-28 12:40:37,114 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 12:40:37,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 401 states and 538 transitions. [2018-11-28 12:40:37,115 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 279 [2018-11-28 12:40:37,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:40:37,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:40:37,116 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 12:40:37,117 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] [2018-11-28 12:40:37,117 INFO L794 eck$LassoCheckResult]: Stem: 3944#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);~cleanupTimeShifts~0 := 4;~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); 3798#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 3799#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 3958#L82 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 3806#L530 assume 0 != main_~tmp~5; 3807#L506 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3975#L105-1 [2018-11-28 12:40:37,117 INFO L796 eck$LassoCheckResult]: Loop: 3975#L105-1 assume !false; 4060#L555 assume test_~splverifierCounter~0 < 4; 3934#L556 test_~tmp~6 := test_#t~nondet36;havoc test_#t~nondet36; 3935#L564 assume !(0 != test_~tmp~6); 3824#L564-1 test_~tmp___0~2 := test_#t~nondet37;havoc test_#t~nondet37; 3800#L574 assume !(0 != test_~tmp___0~2); 3801#L574-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 3805#L584 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3878#L592-1 assume !(0 != ~pumpRunning~0); 3928#L236 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 4082#L294 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret14, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 3846#L268-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 3847#L212-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 3971#L217-1 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 3972#L413-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 4078#L413-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 4076#L419-1 processEnvironment__wrappee__methaneQuery_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret14;havoc processEnvironment__wrappee__methaneQuery_#t~ret14; 4074#L272-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1); 4073#L243 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 4072#L172-3 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 4070#L99 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 3975#L105-1 [2018-11-28 12:40:37,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:37,117 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 5 times [2018-11-28 12:40:37,117 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:37,118 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:37,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:37,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:37,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:37,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:37,143 INFO L82 PathProgramCache]: Analyzing trace with hash 621628045, now seen corresponding path program 1 times [2018-11-28 12:40:37,144 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:37,144 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:37,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:37,145 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:40:37,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:37,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:37,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1077699239, now seen corresponding path program 1 times [2018-11-28 12:40:37,153 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:37,153 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:37,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:37,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:37,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:40:37,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:40:37,215 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:40:37,215 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:40:37,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:40:37,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:40:37,343 INFO L87 Difference]: Start difference. First operand 401 states and 538 transitions. cyclomatic complexity: 140 Second operand 5 states. [2018-11-28 12:40:37,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:40:37,478 INFO L93 Difference]: Finished difference Result 1363 states and 1825 transitions. [2018-11-28 12:40:37,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:40:37,479 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1363 states and 1825 transitions. [2018-11-28 12:40:37,483 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1003 [2018-11-28 12:40:37,486 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1363 states to 1363 states and 1825 transitions. [2018-11-28 12:40:37,486 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1363 [2018-11-28 12:40:37,487 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1363 [2018-11-28 12:40:37,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1363 states and 1825 transitions. [2018-11-28 12:40:37,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:40:37,488 INFO L705 BuchiCegarLoop]: Abstraction has 1363 states and 1825 transitions. [2018-11-28 12:40:37,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states and 1825 transitions. [2018-11-28 12:40:37,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 796. [2018-11-28 12:40:37,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 796 states. [2018-11-28 12:40:37,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1054 transitions. [2018-11-28 12:40:37,498 INFO L728 BuchiCegarLoop]: Abstraction has 796 states and 1054 transitions. [2018-11-28 12:40:37,498 INFO L608 BuchiCegarLoop]: Abstraction has 796 states and 1054 transitions. [2018-11-28 12:40:37,498 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-28 12:40:37,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 796 states and 1054 transitions. [2018-11-28 12:40:37,501 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 558 [2018-11-28 12:40:37,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:40:37,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:40:37,501 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 12:40:37,502 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:37,502 INFO L794 eck$LassoCheckResult]: Stem: 5723#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);~cleanupTimeShifts~0 := 4;~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); 5580#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 5581#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 5734#L82 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 5589#L530 assume 0 != main_~tmp~5; 5590#L506 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 5739#L105-1 [2018-11-28 12:40:37,502 INFO L796 eck$LassoCheckResult]: Loop: 5739#L105-1 assume !false; 6223#L555 assume test_~splverifierCounter~0 < 4; 6224#L556 test_~tmp~6 := test_#t~nondet36;havoc test_#t~nondet36; 6319#L564 assume !(0 != test_~tmp~6); 6316#L564-1 test_~tmp___0~2 := test_#t~nondet37;havoc test_#t~nondet37; 6315#L574 assume !(0 != test_~tmp___0~2); 5587#L574-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 5588#L584 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 5671#L592-1 assume !(0 != ~pumpRunning~0); 5712#L236 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 5732#L294 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret14, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 5633#L268-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 5634#L212-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 5692#L217-1 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 6362#L413-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 6361#L413-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 6360#L419-1 processEnvironment__wrappee__methaneQuery_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret14;havoc processEnvironment__wrappee__methaneQuery_#t~ret14; 6358#L272-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1); 5670#L243 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 6230#L172-3 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 6229#L99 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 6228#L204 __utac_acc__Specification3_spec__1_#t~ret2 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret2;havoc __utac_acc__Specification3_spec__1_#t~ret2; 6225#L105 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 5739#L105-1 [2018-11-28 12:40:37,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:37,502 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 6 times [2018-11-28 12:40:37,502 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:37,502 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:37,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:37,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:37,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:37,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:37,529 INFO L82 PathProgramCache]: Analyzing trace with hash 384105791, now seen corresponding path program 1 times [2018-11-28 12:40:37,529 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:37,529 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:37,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:37,531 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:40:37,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:37,541 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:37,541 INFO L82 PathProgramCache]: Analyzing trace with hash 581859033, now seen corresponding path program 1 times [2018-11-28 12:40:37,541 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:37,541 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:37,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:37,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:37,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:43,347 WARN L180 SmtUtils]: Spent 5.64 s on a formula simplification. DAG size of input: 425 DAG size of output: 423 [2018-11-28 12:40:46,104 WARN L180 SmtUtils]: Spent 2.76 s on a formula simplification that was a NOOP. DAG size: 423 [2018-11-28 12:40:46,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 12:40:46 BoogieIcfgContainer [2018-11-28 12:40:46,143 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 12:40:46,143 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:40:46,143 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:40:46,143 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:40:46,144 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:40:36" (3/4) ... [2018-11-28 12:40:46,147 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 12:40:46,189 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_26f34909-3272-4876-8db8-3e34fdc6f37d/bin-2019/uautomizer/witness.graphml [2018-11-28 12:40:46,189 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:40:46,189 INFO L168 Benchmark]: Toolchain (without parser) took 11269.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 193.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -142.6 MB). Peak memory consumption was 50.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:46,191 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:40:46,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -172.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:46,191 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.84 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:46,192 INFO L168 Benchmark]: Boogie Preprocessor took 36.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:40:46,192 INFO L168 Benchmark]: RCFGBuilder took 650.78 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: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:46,192 INFO L168 Benchmark]: BuchiAutomizer took 10118.52 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -40.9 MB). Peak memory consumption was 241.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:46,192 INFO L168 Benchmark]: Witness Printer took 45.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:40:46,194 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 357.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -172.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.84 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.10 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 650.78 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: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 10118.52 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -40.9 MB). Peak memory consumption was 241.2 MB. Max. memory is 11.5 GB. * Witness Printer took 45.71 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 796 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.0s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 9.3s. Construction of modules took 0.3s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 1860 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 796 states and ocurred in iteration 5. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1294 SDtfs, 2013 SDslu, 2151 SDs, 0 SdLazy, 324 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 554]: 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@5dc2e318=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e0e824d=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@198ffd5f=0, NULL=0, NULL=31, NULL=15, NULL=0, NULL=0, NULL=36, retValue_acc=0, NULL=19, NULL=18, methaneLevelCritical=0, tmp___0=0, NULL=0, NULL=0, NULL=39, tmp=0, NULL=33, NULL=0, tmp___1=0, retValue_acc=0, NULL=35, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61e32fbb=0, NULL=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47cc3cc3=0, tmp___0=1, tmp=0, cleanupTimeShifts=4, NULL=28, NULL=38, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@591bd1e1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61bdce41=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59729e57=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1dccc615=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=12, \result=1, NULL=17, \result=0, retValue_acc=0, NULL=14, NULL=0, retValue_acc=1, \result=1, head=0, pumpRunning=0, \result=0, NULL=34, retValue_acc=1, NULL=0, NULL=0, NULL=0, tmp=1, \result=1, NULL=37, NULL=29, NULL=0, NULL=0, tmp=1, NULL=24, retValue_acc=1, tmp___2=56, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=16, NULL=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e8dc71b=0, NULL=20, tmp=0, tmp___1=0, head=0, tmp=0, NULL=23, NULL=27, NULL=0, NULL=0, NULL=0, NULL=26, NULL=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a1e99b8=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L129] int waterLevel = 1; [L130] int methaneLevelCritical = 0; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L447] int cleanupTimeShifts = 4; [L782] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L521] int retValue_acc ; [L522] int tmp ; [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L528] tmp = valid_product() [L530] COND TRUE \read(tmp) [L545] int splverifierCounter ; [L546] int tmp ; [L547] int tmp___0 ; [L548] int tmp___1 ; [L549] int tmp___2 ; [L552] splverifierCounter = 0 Loop: [L554] COND TRUE 1 [L556] COND TRUE splverifierCounter < 4 [L562] tmp = __VERIFIER_nondet_int() [L564] COND FALSE !(\read(tmp)) [L572] tmp___0 = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp___0)) [L582] tmp___2 = __VERIFIER_nondet_int() [L584] COND TRUE \read(tmp___2) [L442] systemActive = 1 [L236] COND FALSE !(\read(pumpRunning)) [L243] COND TRUE \read(systemActive) [L291] int tmp ; [L294] COND FALSE !(\read(pumpRunning)) [L265] int tmp ; [L268] COND TRUE ! pumpRunning [L405] int retValue_acc ; [L406] int tmp ; [L407] int tmp___0 ; [L209] int retValue_acc ; [L212] COND TRUE waterLevel < 2 [L213] retValue_acc = 1 [L214] return (retValue_acc); [L411] tmp = isHighWaterSensorDry() [L413] COND TRUE \read(tmp) [L414] tmp___0 = 0 [L418] retValue_acc = tmp___0 [L419] return (retValue_acc); [L270] tmp = isHighWaterLevel() [L272] COND FALSE !(\read(tmp)) [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L168] int retValue_acc ; [L171] retValue_acc = methaneLevelCritical [L172] return (retValue_acc); [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L200] int retValue_acc ; [L203] retValue_acc = waterLevel [L204] return (retValue_acc); [L103] tmp___0 = getWaterLevel() [L105] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...