./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bed77c51-257b-43ad-bc1e-597e5ea69161/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bed77c51-257b-43ad-bc1e-597e5ea69161/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bed77c51-257b-43ad-bc1e-597e5ea69161/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bed77c51-257b-43ad-bc1e-597e5ea69161/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bed77c51-257b-43ad-bc1e-597e5ea69161/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bed77c51-257b-43ad-bc1e-597e5ea69161/bin/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 8aa13c479cead5ea7576ebfa7eb0df26504503d1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-cad4683 [2019-10-22 08:56:05,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:05,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:05,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:05,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:05,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:05,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:05,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:05,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:05,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:05,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:05,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:05,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:05,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:05,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:05,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:05,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:05,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:05,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:05,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:05,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:05,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:05,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:05,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:05,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:05,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:05,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:05,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:05,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:05,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:05,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:05,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:05,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:05,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:05,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:05,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:05,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:05,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:05,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:05,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:05,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:05,696 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bed77c51-257b-43ad-bc1e-597e5ea69161/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:56:05,708 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:05,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:05,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:05,710 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:05,710 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:05,710 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:56:05,710 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:56:05,710 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:56:05,711 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:56:05,711 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:56:05,711 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:56:05,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:05,711 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:56:05,712 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:56:05,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:56:05,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:56:05,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:05,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:56:05,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:56:05,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:56:05,713 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:56:05,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:05,714 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:56:05,714 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:05,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:56:05,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:05,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:05,715 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:56:05,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:05,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:56:05,715 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:56:05,716 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:56:05,716 INFO L138 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_bed77c51-257b-43ad-bc1e-597e5ea69161/bin/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 -> 8aa13c479cead5ea7576ebfa7eb0df26504503d1 [2019-10-22 08:56:05,745 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:05,764 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:05,767 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:05,768 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:05,768 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:05,770 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bed77c51-257b-43ad-bc1e-597e5ea69161/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2019-10-22 08:56:05,823 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bed77c51-257b-43ad-bc1e-597e5ea69161/bin/uautomizer/data/e6a2ac357/75601e3521534bbb8232e999855dad25/FLAG734330693 [2019-10-22 08:56:06,311 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:06,311 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bed77c51-257b-43ad-bc1e-597e5ea69161/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2019-10-22 08:56:06,327 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bed77c51-257b-43ad-bc1e-597e5ea69161/bin/uautomizer/data/e6a2ac357/75601e3521534bbb8232e999855dad25/FLAG734330693 [2019-10-22 08:56:06,625 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bed77c51-257b-43ad-bc1e-597e5ea69161/bin/uautomizer/data/e6a2ac357/75601e3521534bbb8232e999855dad25 [2019-10-22 08:56:06,627 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:06,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:06,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:06,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:06,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:06,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:06" (1/1) ... [2019-10-22 08:56:06,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54427352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:06, skipping insertion in model container [2019-10-22 08:56:06,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:06" (1/1) ... [2019-10-22 08:56:06,640 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:06,672 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:07,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:07,048 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:07,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:07,185 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:07,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07 WrapperNode [2019-10-22 08:56:07,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:07,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:07,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:56:07,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:56:07,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:07,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:07,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:07,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:07,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... [2019-10-22 08:56:07,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:07,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:07,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:07,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:07,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bed77c51-257b-43ad-bc1e-597e5ea69161/bin/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 [2019-10-22 08:56:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:56:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:56:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:07,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:08,028 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:08,028 INFO L284 CfgBuilder]: Removed 164 assume(true) statements. [2019-10-22 08:56:08,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:08 BoogieIcfgContainer [2019-10-22 08:56:08,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:08,030 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:56:08,030 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:56:08,034 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:56:08,034 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:56:08,035 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:56:06" (1/3) ... [2019-10-22 08:56:08,036 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6002d102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:56:08, skipping insertion in model container [2019-10-22 08:56:08,036 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:56:08,036 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:07" (2/3) ... [2019-10-22 08:56:08,036 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6002d102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:56:08, skipping insertion in model container [2019-10-22 08:56:08,036 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:56:08,037 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:08" (3/3) ... [2019-10-22 08:56:08,038 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product52.cil.c [2019-10-22 08:56:08,079 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:56:08,079 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:56:08,079 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:56:08,079 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:08,080 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:08,080 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:56:08,080 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:08,080 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:56:08,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states. [2019-10-22 08:56:08,123 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2019-10-22 08:56:08,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:08,123 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:08,131 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:08,131 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:08,132 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:56:08,132 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states. [2019-10-22 08:56:08,137 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2019-10-22 08:56:08,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:08,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:08,138 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:08,138 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:08,143 INFO L791 eck$LassoCheckResult]: Stem: 98#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(13);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(77, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(101, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(116, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(104, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string34.base, #t~string34.offset, 1);call write~init~int(82, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(73, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(84, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 4 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(75, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25); 12#L-1true havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~4, main_~tmp~5;havoc main_~retValue_acc~4;havoc main_~tmp~5; 19#L508true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 26#L516true main_#t~ret25 := valid_product_#res;main_~tmp~5 := main_#t~ret25;havoc main_#t~ret25; 103#L432true assume 0 != main_~tmp~5; 111#L404true ~methAndRunningLastTime~0 := 0; 23#L453true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 24#L464-1true [2019-10-22 08:56:08,143 INFO L793 eck$LassoCheckResult]: Loop: 24#L464-1true assume !false; 122#L57true assume test_~splverifierCounter~0 < 4; 72#L58true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 102#L66true assume !(0 != test_~tmp~0); 99#L66-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 18#L76true assume !(0 != test_~tmp___0~0); 16#L76-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 63#L86true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 55#L94-1true assume !(0 != ~pumpRunning~0); 106#L132true assume !(0 != ~systemActive~0); 34#L139true havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 58#L565true __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; 22#L464true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 24#L464-1true [2019-10-22 08:56:08,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:08,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-10-22 08:56:08,157 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:08,157 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739580322] [2019-10-22 08:56:08,158 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:08,158 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:08,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:09,011 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:09,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:09,014 INFO L82 PathProgramCache]: Analyzing trace with hash 14050900, now seen corresponding path program 1 times [2019-10-22 08:56:09,014 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:09,015 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117729384] [2019-10-22 08:56:09,015 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:09,016 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:09,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:09,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:09,083 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117729384] [2019-10-22 08:56:09,084 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:09,084 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:56:09,084 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612892547] [2019-10-22 08:56:09,090 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:56:09,091 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:09,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:56:09,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:56:09,108 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 3 states. [2019-10-22 08:56:09,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:09,191 INFO L93 Difference]: Finished difference Result 233 states and 343 transitions. [2019-10-22 08:56:09,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:56:09,193 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 233 states and 343 transitions. [2019-10-22 08:56:09,199 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 150 [2019-10-22 08:56:09,205 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 233 states to 219 states and 328 transitions. [2019-10-22 08:56:09,208 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 219 [2019-10-22 08:56:09,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2019-10-22 08:56:09,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 219 states and 328 transitions. [2019-10-22 08:56:09,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:56:09,211 INFO L688 BuchiCegarLoop]: Abstraction has 219 states and 328 transitions. [2019-10-22 08:56:09,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states and 328 transitions. [2019-10-22 08:56:09,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 217. [2019-10-22 08:56:09,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-10-22 08:56:09,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 325 transitions. [2019-10-22 08:56:09,255 INFO L711 BuchiCegarLoop]: Abstraction has 217 states and 325 transitions. [2019-10-22 08:56:09,255 INFO L591 BuchiCegarLoop]: Abstraction has 217 states and 325 transitions. [2019-10-22 08:56:09,256 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:56:09,256 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 217 states and 325 transitions. [2019-10-22 08:56:09,260 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2019-10-22 08:56:09,260 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:09,260 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:09,261 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:09,261 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:09,261 INFO L791 eck$LassoCheckResult]: Stem: 471#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(13);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(77, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(101, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(116, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(104, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string34.base, #t~string34.offset, 1);call write~init~int(82, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(73, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(84, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 4 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(75, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25); 381#L-1 havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~4, main_~tmp~5;havoc main_~retValue_acc~4;havoc main_~tmp~5; 382#L508 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 395#L516 main_#t~ret25 := valid_product_#res;main_~tmp~5 := main_#t~ret25;havoc main_#t~ret25; 409#L432 assume 0 != main_~tmp~5; 476#L404 ~methAndRunningLastTime~0 := 0; 404#L453 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 405#L464-1 [2019-10-22 08:56:09,262 INFO L793 eck$LassoCheckResult]: Loop: 405#L464-1 assume !false; 496#L57 assume test_~splverifierCounter~0 < 4; 460#L58 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 461#L66 assume !(0 != test_~tmp~0); 494#L66-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 493#L76 assume !(0 != test_~tmp___0~0); 389#L76-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 390#L86 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 446#L94-1 assume !(0 != ~pumpRunning~0); 478#L132 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret5, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 479#L190 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 508#L164-1 assume !(0 == ~pumpRunning~0); 503#L139 havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 502#L565 __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; 500#L464 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 405#L464-1 [2019-10-22 08:56:09,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:09,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-10-22 08:56:09,262 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:09,263 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482974709] [2019-10-22 08:56:09,264 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:09,264 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:09,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:09,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:09,680 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:09,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:09,680 INFO L82 PathProgramCache]: Analyzing trace with hash -2022678158, now seen corresponding path program 1 times [2019-10-22 08:56:09,681 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:09,681 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997262915] [2019-10-22 08:56:09,681 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:09,681 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:09,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:09,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:09,692 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997262915] [2019-10-22 08:56:09,693 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:09,693 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:56:09,693 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856810037] [2019-10-22 08:56:09,693 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:56:09,693 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:09,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:56:09,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:56:09,694 INFO L87 Difference]: Start difference. First operand 217 states and 325 transitions. cyclomatic complexity: 111 Second operand 3 states. [2019-10-22 08:56:09,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:09,839 INFO L93 Difference]: Finished difference Result 306 states and 437 transitions. [2019-10-22 08:56:09,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:56:09,840 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 306 states and 437 transitions. [2019-10-22 08:56:09,843 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 215 [2019-10-22 08:56:09,853 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 306 states to 306 states and 437 transitions. [2019-10-22 08:56:09,853 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 306 [2019-10-22 08:56:09,854 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 306 [2019-10-22 08:56:09,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 306 states and 437 transitions. [2019-10-22 08:56:09,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:56:09,856 INFO L688 BuchiCegarLoop]: Abstraction has 306 states and 437 transitions. [2019-10-22 08:56:09,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states and 437 transitions. [2019-10-22 08:56:09,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2019-10-22 08:56:09,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-10-22 08:56:09,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 437 transitions. [2019-10-22 08:56:09,879 INFO L711 BuchiCegarLoop]: Abstraction has 306 states and 437 transitions. [2019-10-22 08:56:09,879 INFO L591 BuchiCegarLoop]: Abstraction has 306 states and 437 transitions. [2019-10-22 08:56:09,879 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:56:09,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 306 states and 437 transitions. [2019-10-22 08:56:09,881 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 215 [2019-10-22 08:56:09,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:09,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:09,882 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:09,882 INFO L850 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] [2019-10-22 08:56:09,882 INFO L791 eck$LassoCheckResult]: Stem: 1006#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(13);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(77, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(101, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(116, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(104, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string34.base, #t~string34.offset, 1);call write~init~int(82, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(73, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(84, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 4 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(75, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25); 909#L-1 havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~4, main_~tmp~5;havoc main_~retValue_acc~4;havoc main_~tmp~5; 910#L508 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 921#L516 main_#t~ret25 := valid_product_#res;main_~tmp~5 := main_#t~ret25;havoc main_#t~ret25; 936#L432 assume 0 != main_~tmp~5; 1011#L404 ~methAndRunningLastTime~0 := 0; 930#L453 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 931#L464-1 [2019-10-22 08:56:09,883 INFO L793 eck$LassoCheckResult]: Loop: 931#L464-1 assume !false; 1160#L57 assume test_~splverifierCounter~0 < 4; 1161#L58 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 1181#L66 assume !(0 != test_~tmp~0); 1179#L66-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 1178#L76 assume !(0 != test_~tmp___0~0); 1176#L76-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 1175#L86 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 984#L94-1 assume !(0 != ~pumpRunning~0); 1140#L132 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret5, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1127#L190 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 1125#L164-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret23, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1124#L605-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1123#L610-1 isHighWaterLevel_#t~ret23 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret23;havoc isHighWaterLevel_#t~ret23; 1122#L292-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 1121#L292-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1120#L298-1 processEnvironment__wrappee__highWaterSensor_#t~ret4 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret4;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4; 1119#L168-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 1118#L139 havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 1168#L565 __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; 1165#L464 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 931#L464-1 [2019-10-22 08:56:09,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:09,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-10-22 08:56:09,883 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:09,884 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335502721] [2019-10-22 08:56:09,884 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:09,884 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:09,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:10,174 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:10,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:10,175 INFO L82 PathProgramCache]: Analyzing trace with hash -2108772386, now seen corresponding path program 1 times [2019-10-22 08:56:10,175 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:10,175 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291073728] [2019-10-22 08:56:10,175 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:10,175 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:10,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:10,186 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:10,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:10,187 INFO L82 PathProgramCache]: Analyzing trace with hash -335630760, now seen corresponding path program 1 times [2019-10-22 08:56:10,187 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:10,187 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336152338] [2019-10-22 08:56:10,188 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:10,188 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:10,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:10,482 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:10,592 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-10-22 08:56:32,946 WARN L191 SmtUtils]: Spent 22.28 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-10-22 08:56:44,296 WARN L191 SmtUtils]: Spent 11.34 s on a formula simplification that was a NOOP. DAG size: 451 [2019-10-22 08:56:44,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:56:44 BoogieIcfgContainer [2019-10-22 08:56:44,362 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:56:44,363 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:44,363 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:44,363 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:44,363 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:08" (3/4) ... [2019-10-22 08:56:44,366 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 08:56:44,427 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bed77c51-257b-43ad-bc1e-597e5ea69161/bin/uautomizer/witness.graphml [2019-10-22 08:56:44,429 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:44,431 INFO L168 Benchmark]: Toolchain (without parser) took 37803.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 211.3 MB). Free memory was 941.7 MB in the beginning and 985.9 MB in the end (delta: -44.2 MB). Peak memory consumption was 167.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:44,431 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:44,432 INFO L168 Benchmark]: CACSL2BoogieTranslator took 558.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -166.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:44,434 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.91 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:44,435 INFO L168 Benchmark]: Boogie Preprocessor took 43.91 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:44,436 INFO L168 Benchmark]: RCFGBuilder took 737.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.9 MB). Peak memory consumption was 66.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:44,437 INFO L168 Benchmark]: BuchiAutomizer took 36332.17 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 88.1 MB). Free memory was 1.0 GB in the beginning and 995.6 MB in the end (delta: 37.7 MB). Peak memory consumption was 296.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:44,438 INFO L168 Benchmark]: Witness Printer took 67.05 ms. Allocated memory is still 1.2 GB. Free memory was 995.6 MB in the beginning and 985.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:44,440 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 558.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -166.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.91 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.91 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 737.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.9 MB). Peak memory consumption was 66.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 36332.17 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 88.1 MB). Free memory was 1.0 GB in the beginning and 995.6 MB in the end (delta: 37.7 MB). Peak memory consumption was 296.1 MB. Max. memory is 11.5 GB. * Witness Printer took 67.05 ms. Allocated memory is still 1.2 GB. Free memory was 995.6 MB in the beginning and 985.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 306 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 36.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 35.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 306 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 340 SDtfs, 285 SDslu, 236 SDs, 0 SdLazy, 41 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 56]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8455} State at position 1 is {NULL=0, NULL=0, NULL=-21, NULL=8455, retValue_acc=0, NULL=-10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7af9cee1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6728f7c=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59b15fd2=52, NULL=0, NULL=-11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b7f7218=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45bef520=0, methaneLevelCritical=0, NULL=-7, tmp___0=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=-23, NULL=0, tmp___1=0, NULL=0, NULL=-8, NULL=-9, cleanupTimeShifts=4, tmp=0, tmp=0, NULL=-12, NULL=-17, NULL=0, systemActive=1, waterLevel=1, NULL=8453, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29f2007a=0, retValue_acc=0, NULL=-3, NULL=0, NULL=-13, \result=0, NULL=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d60a737=0, NULL=-2, NULL=0, NULL=0, \result=1, retValue_acc=1, NULL=-18, head=0, pumpRunning=0, NULL=-22, \result=0, NULL=0, NULL=-5, NULL=0, NULL=0, NULL=0, tmp=1, NULL=0, \result=1, retValue_acc=1, NULL=-6, NULL=8454, NULL=-19, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a959a1=0, tmp___0=0, tmp___2=52, NULL=-20, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=-16, NULL=-1, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@269fad3b=0, NULL=0, NULL=-15, NULL=-14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@596adfb=0, NULL=0, NULL=-4, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L124] int pumpRunning = 0; [L125] int systemActive = 1; [L345] int cleanupTimeShifts = 4; [L447] int methAndRunningLastTime ; [L522] int waterLevel = 1; [L523] int methaneLevelCritical = 0; [L794] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L423] int retValue_acc ; [L424] int tmp ; [L512] int retValue_acc ; [L515] retValue_acc = 1 [L516] return (retValue_acc); [L430] tmp = valid_product() [L432] COND TRUE \read(tmp) [L452] methAndRunningLastTime = 0 [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 Loop: [L56] COND TRUE 1 [L58] COND TRUE splverifierCounter < 4 [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L340] systemActive = 1 [L132] COND FALSE !(\read(pumpRunning)) [L139] COND TRUE \read(systemActive) [L187] int tmp ; [L190] COND FALSE !(\read(pumpRunning)) [L161] int tmp ; [L164] COND TRUE ! pumpRunning [L284] int retValue_acc ; [L285] int tmp ; [L286] int tmp___0 ; [L602] int retValue_acc ; [L605] COND TRUE waterLevel < 2 [L606] retValue_acc = 1 [L607] return (retValue_acc); [L290] tmp = isHighWaterSensorDry() [L292] COND TRUE \read(tmp) [L293] tmp___0 = 0 [L297] retValue_acc = tmp___0 [L298] return (retValue_acc); [L166] tmp = isHighWaterLevel() [L168] COND FALSE !(\read(tmp)) [L457] int tmp ; [L458] int tmp___0 ; [L561] int retValue_acc ; [L564] retValue_acc = methaneLevelCritical [L565] return (retValue_acc); [L462] tmp = isMethaneLevelCritical() [L464] COND FALSE !(\read(tmp)) [L480] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...