./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_05b5d563-eb5a-4aad-b02d-73c8cf5500a6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_05b5d563-eb5a-4aad-b02d-73c8cf5500a6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_05b5d563-eb5a-4aad-b02d-73c8cf5500a6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_05b5d563-eb5a-4aad-b02d-73c8cf5500a6/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_05b5d563-eb5a-4aad-b02d-73c8cf5500a6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_05b5d563-eb5a-4aad-b02d-73c8cf5500a6/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 1c36260bdfb38a7ddcc128caab61da79dda5fd60 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-678e011 [2019-11-20 11:02:04,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:02:04,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:02:04,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:02:04,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:02:04,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:02:04,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:02:04,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:02:04,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:02:04,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:02:04,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:02:04,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:02:04,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:02:04,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:02:04,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:02:04,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:02:04,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:02:04,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:02:04,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:02:04,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:02:04,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:02:04,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:02:04,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:02:04,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:02:04,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:02:04,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:02:04,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:02:04,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:02:04,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:02:04,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:02:04,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:02:04,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:02:04,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:02:04,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:02:04,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:02:04,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:02:04,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:02:04,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:02:04,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:02:04,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:02:04,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:02:04,694 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_05b5d563-eb5a-4aad-b02d-73c8cf5500a6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 11:02:04,728 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:02:04,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:02:04,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:02:04,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:02:04,730 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:02:04,730 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 11:02:04,730 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 11:02:04,730 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 11:02:04,730 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 11:02:04,731 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 11:02:04,731 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 11:02:04,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:02:04,731 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:02:04,731 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 11:02:04,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:02:04,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:02:04,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:02:04,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 11:02:04,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 11:02:04,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 11:02:04,732 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:02:04,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:02:04,733 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 11:02:04,734 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:02:04,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 11:02:04,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:02:04,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:02:04,734 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 11:02:04,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:02:04,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 11:02:04,735 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 11:02:04,736 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 11:02:04,736 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/run_dir_05b5d563-eb5a-4aad-b02d-73c8cf5500a6/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 -> 1c36260bdfb38a7ddcc128caab61da79dda5fd60 [2019-11-20 11:02:04,871 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:02:04,881 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:02:04,884 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:02:04,886 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:02:04,886 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:02:04,887 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_05b5d563-eb5a-4aad-b02d-73c8cf5500a6/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c [2019-11-20 11:02:04,944 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_05b5d563-eb5a-4aad-b02d-73c8cf5500a6/bin/uautomizer/data/e51661524/2ec9905e56184f22a1166b07079ec900/FLAG9c8e615cb [2019-11-20 11:02:05,409 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:02:05,410 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_05b5d563-eb5a-4aad-b02d-73c8cf5500a6/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c [2019-11-20 11:02:05,425 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_05b5d563-eb5a-4aad-b02d-73c8cf5500a6/bin/uautomizer/data/e51661524/2ec9905e56184f22a1166b07079ec900/FLAG9c8e615cb [2019-11-20 11:02:05,757 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_05b5d563-eb5a-4aad-b02d-73c8cf5500a6/bin/uautomizer/data/e51661524/2ec9905e56184f22a1166b07079ec900 [2019-11-20 11:02:05,760 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:02:05,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:02:05,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:02:05,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:02:05,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:02:05,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:02:05" (1/1) ... [2019-11-20 11:02:05,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1b29d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:05, skipping insertion in model container [2019-11-20 11:02:05,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:02:05" (1/1) ... [2019-11-20 11:02:05,778 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:02:05,821 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:02:06,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:02:06,152 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:02:06,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:02:06,290 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:02:06,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:06 WrapperNode [2019-11-20 11:02:06,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:02:06,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:02:06,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:02:06,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:02:06,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:06" (1/1) ... [2019-11-20 11:02:06,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:06" (1/1) ... [2019-11-20 11:02:06,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:02:06,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:02:06,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:02:06,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:02:06,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:06" (1/1) ... [2019-11-20 11:02:06,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:06" (1/1) ... [2019-11-20 11:02:06,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:06" (1/1) ... [2019-11-20 11:02:06,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:06" (1/1) ... [2019-11-20 11:02:06,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:06" (1/1) ... [2019-11-20 11:02:06,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:06" (1/1) ... [2019-11-20 11:02:06,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:06" (1/1) ... [2019-11-20 11:02:06,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:02:06,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:02:06,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:02:06,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:02:06,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05b5d563-eb5a-4aad-b02d-73c8cf5500a6/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 [2019-11-20 11:02:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 11:02:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 11:02:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:02:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:02:07,441 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:02:07,442 INFO L285 CfgBuilder]: Removed 164 assume(true) statements. [2019-11-20 11:02:07,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:02:07 BoogieIcfgContainer [2019-11-20 11:02:07,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:02:07,443 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 11:02:07,443 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 11:02:07,446 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 11:02:07,446 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 11:02:07,446 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 11:02:05" (1/3) ... [2019-11-20 11:02:07,447 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78a9c661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:02:07, skipping insertion in model container [2019-11-20 11:02:07,447 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 11:02:07,447 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:06" (2/3) ... [2019-11-20 11:02:07,448 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78a9c661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:02:07, skipping insertion in model container [2019-11-20 11:02:07,448 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 11:02:07,448 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:02:07" (3/3) ... [2019-11-20 11:02:07,450 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product50.cil.c [2019-11-20 11:02:07,493 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 11:02:07,493 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 11:02:07,494 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 11:02:07,494 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:02:07,494 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:02:07,494 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 11:02:07,494 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:02:07,494 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 11:02:07,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states. [2019-11-20 11:02:07,533 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2019-11-20 11:02:07,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:02:07,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:02:07,539 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 11:02:07,539 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:02:07,539 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 11:02:07,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states. [2019-11-20 11:02:07,545 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2019-11-20 11:02:07,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:02:07,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:02:07,546 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 11:02:07,547 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:02:07,551 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(13);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string41.base, #t~string41.offset, 1);call write~init~int(77, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(101, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(116, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(104, #t~string41.base, 4 + #t~string41.offset, 1);call write~init~int(58, #t~string41.base, 5 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 6 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string43.base, #t~string43.offset, 1);call write~init~int(82, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(73, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(84, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 4 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(75, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string47.base, #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 1 + #t~string47.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(13);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(80, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(117, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(109, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(112, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(32, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 7#L-1true havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 99#L677true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 102#L685true main_#t~ret48 := valid_product_#res;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 104#L641true assume 0 != main_~tmp~4; 79#L614true havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 24#L425-1true [2019-11-20 11:02:07,551 INFO L796 eck$LassoCheckResult]: Loop: 24#L425-1true assume !false; 36#L711true assume test_~splverifierCounter~0 < 4; 117#L712true test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 11#L720true assume !(0 != test_~tmp~5); 13#L720-1true test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 54#L730true assume !(0 != test_~tmp___0~1); 37#L730-1true test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 101#L740true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 114#L748-2true assume !(0 != ~pumpRunning~0); 95#L776true assume !(0 != ~systemActive~0); 31#L783true havoc __utac_acc__Specification3_spec__1_#t~ret35, __utac_acc__Specification3_spec__1_#t~ret36, __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;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~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 59#L493true __utac_acc__Specification3_spec__1_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret35;havoc __utac_acc__Specification3_spec__1_#t~ret35; 40#L419true assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 24#L425-1true [2019-11-20 11:02:07,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:02:07,557 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-20 11:02:07,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:02:07,565 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026024515] [2019-11-20 11:02:07,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:02:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:02:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:02:07,897 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:02:07,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:02:07,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1678820874, now seen corresponding path program 1 times [2019-11-20 11:02:07,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:02:07,898 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850148679] [2019-11-20 11:02:07,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:02:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:02:07,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:02:07,946 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850148679] [2019-11-20 11:02:07,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:02:07,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 11:02:07,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786728157] [2019-11-20 11:02:07,951 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 11:02:07,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:02:07,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:02:07,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:02:07,964 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 3 states. [2019-11-20 11:02:08,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:02:08,018 INFO L93 Difference]: Finished difference Result 120 states and 173 transitions. [2019-11-20 11:02:08,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:02:08,025 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 173 transitions. [2019-11-20 11:02:08,034 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2019-11-20 11:02:08,039 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 113 states and 165 transitions. [2019-11-20 11:02:08,041 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 113 [2019-11-20 11:02:08,041 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 113 [2019-11-20 11:02:08,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 113 states and 165 transitions. [2019-11-20 11:02:08,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 11:02:08,043 INFO L688 BuchiCegarLoop]: Abstraction has 113 states and 165 transitions. [2019-11-20 11:02:08,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states and 165 transitions. [2019-11-20 11:02:08,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-11-20 11:02:08,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-11-20 11:02:08,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2019-11-20 11:02:08,074 INFO L711 BuchiCegarLoop]: Abstraction has 113 states and 165 transitions. [2019-11-20 11:02:08,074 INFO L591 BuchiCegarLoop]: Abstraction has 113 states and 165 transitions. [2019-11-20 11:02:08,074 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 11:02:08,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states and 165 transitions. [2019-11-20 11:02:08,077 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2019-11-20 11:02:08,077 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:02:08,077 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:02:08,078 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 11:02:08,078 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:02:08,079 INFO L794 eck$LassoCheckResult]: Stem: 350#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(13);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string41.base, #t~string41.offset, 1);call write~init~int(77, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(101, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(116, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(104, #t~string41.base, 4 + #t~string41.offset, 1);call write~init~int(58, #t~string41.base, 5 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 6 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string43.base, #t~string43.offset, 1);call write~init~int(82, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(73, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(84, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 4 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(75, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string47.base, #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 1 + #t~string47.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(13);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(80, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(117, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(109, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(112, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(32, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 258#L-1 havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 259#L677 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 354#L685 main_#t~ret48 := valid_product_#res;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 358#L641 assume 0 != main_~tmp~4; 344#L614 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 289#L425-1 [2019-11-20 11:02:08,079 INFO L796 eck$LassoCheckResult]: Loop: 289#L425-1 assume !false; 291#L711 assume test_~splverifierCounter~0 < 4; 307#L712 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 267#L720 assume !(0 != test_~tmp~5); 269#L720-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 272#L730 assume !(0 != test_~tmp___0~1); 304#L730-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 308#L740 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 356#L748-2 assume !(0 != ~pumpRunning~0); 351#L776 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 347#L834 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 262#L808-1 assume !(0 == ~pumpRunning~0); 261#L783 havoc __utac_acc__Specification3_spec__1_#t~ret35, __utac_acc__Specification3_spec__1_#t~ret36, __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;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~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 300#L493 __utac_acc__Specification3_spec__1_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret35;havoc __utac_acc__Specification3_spec__1_#t~ret35; 312#L419 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 289#L425-1 [2019-11-20 11:02:08,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:02:08,079 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-20 11:02:08,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:02:08,080 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720006796] [2019-11-20 11:02:08,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:02:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:02:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:02:08,238 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:02:08,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:02:08,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1079829900, now seen corresponding path program 1 times [2019-11-20 11:02:08,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:02:08,239 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680447775] [2019-11-20 11:02:08,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:02:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:02:08,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:02:08,253 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680447775] [2019-11-20 11:02:08,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:02:08,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 11:02:08,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422305744] [2019-11-20 11:02:08,254 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 11:02:08,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:02:08,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:02:08,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:02:08,254 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. cyclomatic complexity: 54 Second operand 3 states. [2019-11-20 11:02:08,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:02:08,397 INFO L93 Difference]: Finished difference Result 160 states and 222 transitions. [2019-11-20 11:02:08,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:02:08,398 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 222 transitions. [2019-11-20 11:02:08,400 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2019-11-20 11:02:08,402 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 160 states and 222 transitions. [2019-11-20 11:02:08,402 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 160 [2019-11-20 11:02:08,402 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 160 [2019-11-20 11:02:08,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 222 transitions. [2019-11-20 11:02:08,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 11:02:08,403 INFO L688 BuchiCegarLoop]: Abstraction has 160 states and 222 transitions. [2019-11-20 11:02:08,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 222 transitions. [2019-11-20 11:02:08,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2019-11-20 11:02:08,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-11-20 11:02:08,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 222 transitions. [2019-11-20 11:02:08,413 INFO L711 BuchiCegarLoop]: Abstraction has 160 states and 222 transitions. [2019-11-20 11:02:08,413 INFO L591 BuchiCegarLoop]: Abstraction has 160 states and 222 transitions. [2019-11-20 11:02:08,413 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 11:02:08,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 160 states and 222 transitions. [2019-11-20 11:02:08,415 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2019-11-20 11:02:08,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:02:08,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:02:08,417 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 11:02:08,417 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] [2019-11-20 11:02:08,417 INFO L794 eck$LassoCheckResult]: Stem: 632#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(13);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string41.base, #t~string41.offset, 1);call write~init~int(77, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(101, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(116, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(104, #t~string41.base, 4 + #t~string41.offset, 1);call write~init~int(58, #t~string41.base, 5 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 6 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string43.base, #t~string43.offset, 1);call write~init~int(82, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(73, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(84, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 4 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(75, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string47.base, #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 1 + #t~string47.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(13);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(80, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(117, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(109, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(112, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(32, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 537#L-1 havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 538#L677 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 635#L685 main_#t~ret48 := valid_product_#res;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 639#L641 assume 0 != main_~tmp~4; 626#L614 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 569#L425-1 [2019-11-20 11:02:08,417 INFO L796 eck$LassoCheckResult]: Loop: 569#L425-1 assume !false; 571#L711 assume test_~splverifierCounter~0 < 4; 589#L712 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 546#L720 assume !(0 != test_~tmp~5); 548#L720-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 551#L730 assume !(0 != test_~tmp___0~1); 586#L730-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 590#L740 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 637#L748-2 assume !(0 != ~pumpRunning~0); 633#L776 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 629#L834 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 541#L808-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret73, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 542#L533-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 556#L538-1 isHighWaterLevel_#t~ret73 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret73;havoc isHighWaterLevel_#t~ret73; 557#L936-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 615#L936-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 596#L942-1 processEnvironment__wrappee__highWaterSensor_#t~ret54 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret54;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54; 597#L812-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 576#L783 havoc __utac_acc__Specification3_spec__1_#t~ret35, __utac_acc__Specification3_spec__1_#t~ret36, __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;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~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 582#L493 __utac_acc__Specification3_spec__1_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret35;havoc __utac_acc__Specification3_spec__1_#t~ret35; 594#L419 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 569#L425-1 [2019-11-20 11:02:08,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:02:08,418 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-20 11:02:08,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:02:08,418 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672549295] [2019-11-20 11:02:08,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:02:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:02:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:02:08,503 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:02:08,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:02:08,504 INFO L82 PathProgramCache]: Analyzing trace with hash -246413056, now seen corresponding path program 1 times [2019-11-20 11:02:08,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:02:08,504 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288428546] [2019-11-20 11:02:08,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:02:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:02:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:02:08,517 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:02:08,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:02:08,517 INFO L82 PathProgramCache]: Analyzing trace with hash 209658138, now seen corresponding path program 1 times [2019-11-20 11:02:08,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:02:08,518 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431690633] [2019-11-20 11:02:08,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:02:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:02:08,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:02:08,586 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431690633] [2019-11-20 11:02:08,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:02:08,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 11:02:08,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68396268] [2019-11-20 11:02:08,748 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-11-20 11:02:08,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:02:08,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:02:08,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:02:08,835 INFO L87 Difference]: Start difference. First operand 160 states and 222 transitions. cyclomatic complexity: 64 Second operand 5 states. [2019-11-20 11:02:09,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:02:09,007 INFO L93 Difference]: Finished difference Result 555 states and 776 transitions. [2019-11-20 11:02:09,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 11:02:09,008 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 555 states and 776 transitions. [2019-11-20 11:02:09,016 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 408 [2019-11-20 11:02:09,022 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 555 states to 555 states and 776 transitions. [2019-11-20 11:02:09,023 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 555 [2019-11-20 11:02:09,024 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 555 [2019-11-20 11:02:09,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 555 states and 776 transitions. [2019-11-20 11:02:09,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 11:02:09,028 INFO L688 BuchiCegarLoop]: Abstraction has 555 states and 776 transitions. [2019-11-20 11:02:09,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states and 776 transitions. [2019-11-20 11:02:09,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 314. [2019-11-20 11:02:09,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2019-11-20 11:02:09,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 430 transitions. [2019-11-20 11:02:09,066 INFO L711 BuchiCegarLoop]: Abstraction has 314 states and 430 transitions. [2019-11-20 11:02:09,066 INFO L591 BuchiCegarLoop]: Abstraction has 314 states and 430 transitions. [2019-11-20 11:02:09,066 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 11:02:09,066 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 314 states and 430 transitions. [2019-11-20 11:02:09,068 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 220 [2019-11-20 11:02:09,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:02:09,074 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:02:09,075 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 11:02:09,075 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, 1, 1] [2019-11-20 11:02:09,076 INFO L794 eck$LassoCheckResult]: Stem: 1382#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(13);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string41.base, #t~string41.offset, 1);call write~init~int(77, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(101, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(116, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(104, #t~string41.base, 4 + #t~string41.offset, 1);call write~init~int(58, #t~string41.base, 5 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 6 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string43.base, #t~string43.offset, 1);call write~init~int(82, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(73, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(84, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 4 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(75, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string47.base, #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 1 + #t~string47.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(13);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(80, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(117, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(109, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(112, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(32, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 1270#L-1 havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 1271#L677 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 1390#L685 main_#t~ret48 := valid_product_#res;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 1394#L641 assume 0 != main_~tmp~4; 1374#L614 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1305#L425-1 [2019-11-20 11:02:09,077 INFO L796 eck$LassoCheckResult]: Loop: 1305#L425-1 assume !false; 1526#L711 assume test_~splverifierCounter~0 < 4; 1527#L712 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 1567#L720 assume !(0 != test_~tmp~5); 1564#L720-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 1561#L730 assume !(0 != test_~tmp___0~1); 1559#L730-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 1558#L740 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1551#L748-2 assume !(0 != ~pumpRunning~0); 1549#L776 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1544#L834 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1542#L808-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret73, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 1540#L533-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 1290#L538-1 isHighWaterLevel_#t~ret73 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret73;havoc isHighWaterLevel_#t~ret73; 1291#L936-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 1357#L936-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1358#L942-1 processEnvironment__wrappee__highWaterSensor_#t~ret54 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret54;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54; 1528#L812-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 1313#L783 havoc __utac_acc__Specification3_spec__1_#t~ret35, __utac_acc__Specification3_spec__1_#t~ret36, __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;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~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 1533#L493 __utac_acc__Specification3_spec__1_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret35;havoc __utac_acc__Specification3_spec__1_#t~ret35; 1333#L419 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~3);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 1334#L525 __utac_acc__Specification3_spec__1_#t~ret36 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret36;havoc __utac_acc__Specification3_spec__1_#t~ret36; 1304#L425 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 1305#L425-1 [2019-11-20 11:02:09,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:02:09,077 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-20 11:02:09,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:02:09,078 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815203235] [2019-11-20 11:02:09,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:02:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:02:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:02:09,177 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:02:09,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:02:09,178 INFO L82 PathProgramCache]: Analyzing trace with hash -579737614, now seen corresponding path program 1 times [2019-11-20 11:02:09,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:02:09,178 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394340027] [2019-11-20 11:02:09,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:02:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:02:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:02:09,191 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:02:09,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:02:09,192 INFO L82 PathProgramCache]: Analyzing trace with hash -381984372, now seen corresponding path program 1 times [2019-11-20 11:02:09,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:02:09,192 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316889739] [2019-11-20 11:02:09,192 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:02:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:02:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:02:09,282 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:02:09,450 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-11-20 11:02:39,137 WARN L191 SmtUtils]: Spent 29.61 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-20 11:02:53,398 WARN L191 SmtUtils]: Spent 14.26 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-20 11:02:53,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 11:02:53 BoogieIcfgContainer [2019-11-20 11:02:53,471 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 11:02:53,471 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:02:53,472 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:02:53,472 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:02:53,472 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:02:07" (3/4) ... [2019-11-20 11:02:53,475 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-20 11:02:53,526 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_05b5d563-eb5a-4aad-b02d-73c8cf5500a6/bin/uautomizer/witness.graphml [2019-11-20 11:02:53,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:02:53,527 INFO L168 Benchmark]: Toolchain (without parser) took 47766.68 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 315.1 MB). Free memory was 939.3 MB in the beginning and 1.2 GB in the end (delta: -274.4 MB). Peak memory consumption was 40.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:02:53,528 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:02:53,528 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -155.3 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:02:53,529 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.67 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:02:53,529 INFO L168 Benchmark]: Boogie Preprocessor took 82.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:02:53,529 INFO L168 Benchmark]: RCFGBuilder took 993.28 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: 61.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 11.5 GB. [2019-11-20 11:02:53,530 INFO L168 Benchmark]: BuchiAutomizer took 46027.87 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 190.3 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -192.0 MB). Peak memory consumption was 400.8 MB. Max. memory is 11.5 GB. [2019-11-20 11:02:53,530 INFO L168 Benchmark]: Witness Printer took 54.83 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-11-20 11:02:53,533 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 531.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -155.3 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 73.67 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 82.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 993.28 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: 61.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 46027.87 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 190.3 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -192.0 MB). Peak memory consumption was 400.8 MB. Max. memory is 11.5 GB. * Witness Printer took 54.83 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 314 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 45.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 45.3s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 241 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 314 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 569 SDtfs, 954 SDslu, 855 SDs, 0 SdLazy, 76 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 710]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3470} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ed488f4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5747b9e1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fdd7b51=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1664c7e6=0, NULL=3470, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=3484, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a0e23ea=0, NULL=3491, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61e5dc5b=57, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@503a09a9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@134c23d0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c931dfb=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29596f50=0, tmp=0, NULL=3476, NULL=0, NULL=0, NULL=3493, tmp___1=0, NULL=3483, NULL=3479, tmp___0=1, NULL=3475, NULL=3488, NULL=3482, cleanupTimeShifts=4, NULL=3472, NULL=3478, tmp=0, tmp=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=3486, retValue_acc=0, \result=0, NULL=3495, NULL=3485, NULL=0, \result=1, NULL=3477, head=0, pumpRunning=0, \result=0, retValue_acc=1, NULL=3481, tmp=1, NULL=0, NULL=3494, NULL=0, NULL=0, \result=1, retValue_acc=1, NULL=3474, NULL=0, retValue_acc=0, tmp=1, tmp___2=57, retValue_acc=1, NULL=3492, tmp___0=0, splverifierCounter=0, \result=0, NULL=3487, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24b75f9=0, tmp___1=0, head=0, NULL=0, NULL=3480, NULL=3471, NULL=0, NULL=3473, tmp=0, NULL=0, NULL=0, NULL=0, NULL=3490, NULL=3489} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L450] int waterLevel = 1; [L451] int methaneLevelCritical = 0; [L553] int cleanupTimeShifts = 4; [L769] int pumpRunning = 0; [L770] int systemActive = 1; [L632] int retValue_acc ; [L633] int tmp ; [L681] int retValue_acc ; [L684] retValue_acc = 1 [L685] return (retValue_acc); [L639] tmp = valid_product() [L641] COND TRUE \read(tmp) [L701] int splverifierCounter ; [L702] int tmp ; [L703] int tmp___0 ; [L704] int tmp___1 ; [L705] int tmp___2 ; [L708] splverifierCounter = 0 Loop: [L710] COND TRUE 1 [L712] COND TRUE splverifierCounter < 4 [L718] tmp = __VERIFIER_nondet_int() [L720] COND FALSE !(\read(tmp)) [L728] tmp___0 = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp___0)) [L738] tmp___2 = __VERIFIER_nondet_int() [L740] COND TRUE \read(tmp___2) [L969] systemActive = 1 [L776] COND FALSE !(\read(pumpRunning)) [L783] COND TRUE \read(systemActive) [L831] int tmp ; [L834] COND FALSE !(\read(pumpRunning)) [L805] int tmp ; [L808] COND TRUE ! pumpRunning [L928] int retValue_acc ; [L929] int tmp ; [L930] int tmp___0 ; [L530] int retValue_acc ; [L533] COND TRUE waterLevel < 2 [L534] retValue_acc = 1 [L535] return (retValue_acc); [L934] tmp = isHighWaterSensorDry() [L936] COND TRUE \read(tmp) [L937] tmp___0 = 0 [L941] retValue_acc = tmp___0 [L942] return (retValue_acc); [L810] tmp = isHighWaterLevel() [L812] COND FALSE !(\read(tmp)) [L411] int tmp ; [L412] int tmp___0 ; [L413] int tmp___1 ; [L489] int retValue_acc ; [L492] retValue_acc = methaneLevelCritical [L493] return (retValue_acc); [L417] tmp = isMethaneLevelCritical() [L419] COND FALSE !(\read(tmp)) [L521] int retValue_acc ; [L524] retValue_acc = waterLevel [L525] return (retValue_acc); [L423] tmp___0 = getWaterLevel() [L425] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...