./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product43.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_9856216c-59ac-4f7c-ac94-adb24e0adcab/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9856216c-59ac-4f7c-ac94-adb24e0adcab/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9856216c-59ac-4f7c-ac94-adb24e0adcab/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9856216c-59ac-4f7c-ac94-adb24e0adcab/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9856216c-59ac-4f7c-ac94-adb24e0adcab/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9856216c-59ac-4f7c-ac94-adb24e0adcab/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 63b48aee14c7431a4aa25f8de4f2dd8129d50ad4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:02:40,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:40,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:40,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:40,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:40,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:40,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:40,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:40,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:40,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:40,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:40,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:40,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:40,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:40,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:40,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:40,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:40,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:40,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:40,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:40,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:40,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:40,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:40,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:40,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:40,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:40,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:40,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:40,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:40,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:40,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:40,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:40,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:40,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:40,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:40,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:40,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:40,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:40,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:40,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:40,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:40,729 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9856216c-59ac-4f7c-ac94-adb24e0adcab/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 09:02:40,744 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:40,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:40,755 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:40,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:40,756 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:40,756 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:02:40,756 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:02:40,756 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:02:40,756 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:02:40,756 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:02:40,757 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:02:40,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:40,757 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:40,757 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:02:40,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:40,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:40,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:40,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:02:40,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:02:40,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:02:40,759 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:40,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:40,760 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:02:40,760 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:40,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:02:40,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:40,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:40,761 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:02:40,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:40,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:40,761 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:02:40,762 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:02:40,764 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_9856216c-59ac-4f7c-ac94-adb24e0adcab/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 -> 63b48aee14c7431a4aa25f8de4f2dd8129d50ad4 [2019-10-22 09:02:40,789 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:40,799 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:40,802 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:40,804 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:40,804 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:40,805 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9856216c-59ac-4f7c-ac94-adb24e0adcab/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2019-10-22 09:02:40,858 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9856216c-59ac-4f7c-ac94-adb24e0adcab/bin/uautomizer/data/6336a2256/54457ab79b9f4342aa0cb4114186b14b/FLAG05cb48cef [2019-10-22 09:02:41,306 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:41,306 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9856216c-59ac-4f7c-ac94-adb24e0adcab/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2019-10-22 09:02:41,320 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9856216c-59ac-4f7c-ac94-adb24e0adcab/bin/uautomizer/data/6336a2256/54457ab79b9f4342aa0cb4114186b14b/FLAG05cb48cef [2019-10-22 09:02:41,826 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9856216c-59ac-4f7c-ac94-adb24e0adcab/bin/uautomizer/data/6336a2256/54457ab79b9f4342aa0cb4114186b14b [2019-10-22 09:02:41,828 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:41,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:41,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:41,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:41,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:41,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:41" (1/1) ... [2019-10-22 09:02:41,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20dc735c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:41, skipping insertion in model container [2019-10-22 09:02:41,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:41" (1/1) ... [2019-10-22 09:02:41,844 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:41,894 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:42,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:42,278 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:42,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:42,375 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:42,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:42 WrapperNode [2019-10-22 09:02:42,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:42,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:42,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:42,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:42,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:42" (1/1) ... [2019-10-22 09:02:42,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:42" (1/1) ... [2019-10-22 09:02:42,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:42,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:42,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:42,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:42,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:42" (1/1) ... [2019-10-22 09:02:42,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:42" (1/1) ... [2019-10-22 09:02:42,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:42" (1/1) ... [2019-10-22 09:02:42,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:42" (1/1) ... [2019-10-22 09:02:42,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:42" (1/1) ... [2019-10-22 09:02:42,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:42" (1/1) ... [2019-10-22 09:02:42,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:42" (1/1) ... [2019-10-22 09:02:42,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:42,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:42,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:42,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:42,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9856216c-59ac-4f7c-ac94-adb24e0adcab/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 09:02:42,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:02:42,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:02:42,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:42,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:43,135 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:43,136 INFO L284 CfgBuilder]: Removed 118 assume(true) statements. [2019-10-22 09:02:43,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:43 BoogieIcfgContainer [2019-10-22 09:02:43,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:43,138 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:02:43,138 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:02:43,141 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:02:43,142 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:43,142 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:02:41" (1/3) ... [2019-10-22 09:02:43,143 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32eee23b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:02:43, skipping insertion in model container [2019-10-22 09:02:43,143 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:43,143 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:42" (2/3) ... [2019-10-22 09:02:43,144 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32eee23b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:02:43, skipping insertion in model container [2019-10-22 09:02:43,144 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:43,144 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:43" (3/3) ... [2019-10-22 09:02:43,145 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2019-10-22 09:02:43,194 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:02:43,194 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:02:43,194 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:02:43,195 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:43,195 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:43,195 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:02:43,195 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:43,195 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:02:43,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-10-22 09:02:43,246 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2019-10-22 09:02:43,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:43,246 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:43,256 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:43,256 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:43,256 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:02:43,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-10-22 09:02:43,261 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2019-10-22 09:02:43,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:43,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:43,264 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:43,264 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:43,269 INFO L791 eck$LassoCheckResult]: Stem: 31#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25); 14#L-1true havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 62#L923true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 68#L931true main_#t~ret36 := valid_product_#res;main_~tmp~5 := main_#t~ret36;havoc main_#t~ret36; 55#L521true assume 0 != main_~tmp~5; 65#L495true havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 49#L418-1true [2019-10-22 09:02:43,269 INFO L793 eck$LassoCheckResult]: Loop: 49#L418-1true assume !false; 42#L345true assume test_~splverifierCounter~0 < 4; 87#L346true test_~tmp~3 := test_#t~nondet30;havoc test_#t~nondet30; 7#L354true assume !(0 != test_~tmp~3); 9#L354-1true test_~tmp___0~1 := test_#t~nondet31;havoc test_#t~nondet31; 71#L364true assume !(0 != test_~tmp___0~1); 72#L364-1true test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 51#L374true assume 0 != test_~tmp___2~0; 21#L380-1true assume !(0 != ~pumpRunning~0); 45#L155true assume !(0 != ~systemActive~0); 60#L162true havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 88#L90-1true __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; 47#L418true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 49#L418-1true [2019-10-22 09:02:43,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:43,276 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-10-22 09:02:43,283 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:43,284 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847136233] [2019-10-22 09:02:43,284 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:43,284 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:43,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:44,047 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:44,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:44,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1672602485, now seen corresponding path program 1 times [2019-10-22 09:02:44,048 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:44,049 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549942209] [2019-10-22 09:02:44,049 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:44,049 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:44,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:44,063 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:44,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:44,065 INFO L82 PathProgramCache]: Analyzing trace with hash 41676453, now seen corresponding path program 1 times [2019-10-22 09:02:44,065 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:44,066 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594661779] [2019-10-22 09:02:44,066 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:44,066 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:44,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:44,212 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 09:02:44,213 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594661779] [2019-10-22 09:02:44,214 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:44,214 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:02:44,216 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752528546] [2019-10-22 09:02:44,327 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:44,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:02:44,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:02:44,348 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 6 states. [2019-10-22 09:02:44,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:44,524 INFO L93 Difference]: Finished difference Result 216 states and 300 transitions. [2019-10-22 09:02:44,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:44,527 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 216 states and 300 transitions. [2019-10-22 09:02:44,534 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 137 [2019-10-22 09:02:44,540 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 216 states to 195 states and 279 transitions. [2019-10-22 09:02:44,542 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2019-10-22 09:02:44,543 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 195 [2019-10-22 09:02:44,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 279 transitions. [2019-10-22 09:02:44,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:02:44,545 INFO L688 BuchiCegarLoop]: Abstraction has 195 states and 279 transitions. [2019-10-22 09:02:44,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 279 transitions. [2019-10-22 09:02:44,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 120. [2019-10-22 09:02:44,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-10-22 09:02:44,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 171 transitions. [2019-10-22 09:02:44,585 INFO L711 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2019-10-22 09:02:44,585 INFO L591 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2019-10-22 09:02:44,585 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:02:44,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 171 transitions. [2019-10-22 09:02:44,594 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2019-10-22 09:02:44,594 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:44,594 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:44,595 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:44,595 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:44,595 INFO L791 eck$LassoCheckResult]: Stem: 361#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25); 337#L-1 havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 338#L923 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 399#L931 main_#t~ret36 := valid_product_#res;main_~tmp~5 := main_#t~ret36;havoc main_#t~ret36; 393#L521 assume 0 != main_~tmp~5; 394#L495 havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 386#L418-1 [2019-10-22 09:02:44,595 INFO L793 eck$LassoCheckResult]: Loop: 386#L418-1 assume !false; 378#L345 assume test_~splverifierCounter~0 < 4; 379#L346 test_~tmp~3 := test_#t~nondet30;havoc test_#t~nondet30; 327#L354 assume !(0 != test_~tmp~3); 329#L354-1 test_~tmp___0~1 := test_#t~nondet31;havoc test_#t~nondet31; 332#L364 assume !(0 != test_~tmp___0~1); 368#L364-1 test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 388#L374 assume 0 != test_~tmp___2~0; 341#L380-1 assume !(0 != ~pumpRunning~0); 344#L155 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 348#L187 assume !(0 == ~pumpRunning~0); 350#L162 havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 397#L90-1 __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; 384#L418 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 386#L418-1 [2019-10-22 09:02:44,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:44,596 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-10-22 09:02:44,596 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:44,596 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361627161] [2019-10-22 09:02:44,597 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:44,597 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:44,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:44,898 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:44,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:44,899 INFO L82 PathProgramCache]: Analyzing trace with hash -352838725, now seen corresponding path program 1 times [2019-10-22 09:02:44,899 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:44,899 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127999093] [2019-10-22 09:02:44,900 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:44,900 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:44,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:44,911 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 09:02:44,911 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127999093] [2019-10-22 09:02:44,912 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:44,912 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:44,912 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289549895] [2019-10-22 09:02:44,912 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:02:44,913 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:44,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:44,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:44,913 INFO L87 Difference]: Start difference. First operand 120 states and 171 transitions. cyclomatic complexity: 54 Second operand 3 states. [2019-10-22 09:02:44,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:44,980 INFO L93 Difference]: Finished difference Result 159 states and 214 transitions. [2019-10-22 09:02:44,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:44,981 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 214 transitions. [2019-10-22 09:02:44,984 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2019-10-22 09:02:44,985 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 159 states and 214 transitions. [2019-10-22 09:02:44,985 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2019-10-22 09:02:44,986 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2019-10-22 09:02:44,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 214 transitions. [2019-10-22 09:02:44,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:02:44,995 INFO L688 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2019-10-22 09:02:44,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 214 transitions. [2019-10-22 09:02:45,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2019-10-22 09:02:45,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-10-22 09:02:45,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 214 transitions. [2019-10-22 09:02:45,007 INFO L711 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2019-10-22 09:02:45,007 INFO L591 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2019-10-22 09:02:45,007 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 09:02:45,007 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 214 transitions. [2019-10-22 09:02:45,009 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2019-10-22 09:02:45,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:45,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:45,009 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:45,010 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] [2019-10-22 09:02:45,010 INFO L791 eck$LassoCheckResult]: Stem: 646#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25); 622#L-1 havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 623#L923 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 694#L931 main_#t~ret36 := valid_product_#res;main_~tmp~5 := main_#t~ret36;havoc main_#t~ret36; 685#L521 assume 0 != main_~tmp~5; 686#L495 havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 673#L418-1 [2019-10-22 09:02:45,013 INFO L793 eck$LassoCheckResult]: Loop: 673#L418-1 assume !false; 676#L345 assume test_~splverifierCounter~0 < 4; 746#L346 test_~tmp~3 := test_#t~nondet30;havoc test_#t~nondet30; 745#L354 assume !(0 != test_~tmp~3); 743#L354-1 test_~tmp___0~1 := test_#t~nondet31;havoc test_#t~nondet31; 742#L364 assume !(0 != test_~tmp___0~1); 740#L364-1 test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 679#L374 assume 0 != test_~tmp___2~0; 626#L380-1 assume !(0 != ~pumpRunning~0); 670#L155 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 631#L187 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 632#L130 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 615#L135 isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; 616#L307 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 624#L307-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 627#L313 processEnvironment_#t~ret10 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret10;havoc processEnvironment_#t~ret10; 682#L191 assume !(0 != processEnvironment_~tmp~0); 683#L162 havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 691#L90-1 __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; 671#L418 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 673#L418-1 [2019-10-22 09:02:45,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:45,013 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-10-22 09:02:45,014 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:45,014 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065875325] [2019-10-22 09:02:45,014 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:45,014 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:45,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:45,286 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:45,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:45,286 INFO L82 PathProgramCache]: Analyzing trace with hash -539212889, now seen corresponding path program 1 times [2019-10-22 09:02:45,287 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:45,287 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553039000] [2019-10-22 09:02:45,287 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:45,287 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:45,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:45,297 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:45,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:45,298 INFO L82 PathProgramCache]: Analyzing trace with hash -524500915, now seen corresponding path program 1 times [2019-10-22 09:02:45,298 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:45,298 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403292805] [2019-10-22 09:02:45,298 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:45,299 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:45,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:45,505 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:03:09,276 WARN L191 SmtUtils]: Spent 23.63 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-10-22 09:03:19,292 WARN L191 SmtUtils]: Spent 10.02 s on a formula simplification that was a NOOP. DAG size: 449 [2019-10-22 09:03:19,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:03:19 BoogieIcfgContainer [2019-10-22 09:03:19,338 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:03:19,338 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:03:19,338 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:03:19,338 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:03:19,339 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:43" (3/4) ... [2019-10-22 09:03:19,341 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 09:03:19,385 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9856216c-59ac-4f7c-ac94-adb24e0adcab/bin/uautomizer/witness.graphml [2019-10-22 09:03:19,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:03:19,386 INFO L168 Benchmark]: Toolchain (without parser) took 37556.96 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 342.9 MB). Free memory was 949.8 MB in the beginning and 1.3 GB in the end (delta: -303.5 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:19,387 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:03:19,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 545.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -166.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:19,387 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:03:19,388 INFO L168 Benchmark]: Boogie Preprocessor took 28.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:03:19,388 INFO L168 Benchmark]: RCFGBuilder took 678.92 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: 66.5 MB). Peak memory consumption was 66.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:19,388 INFO L168 Benchmark]: BuchiAutomizer took 36200.07 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 210.2 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -223.6 MB). Peak memory consumption was 397.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:19,389 INFO L168 Benchmark]: Witness Printer took 47.30 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:19,391 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 545.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -166.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 678.92 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: 66.5 MB). Peak memory consumption was 66.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 36200.07 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 210.2 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -223.6 MB). Peak memory consumption was 397.0 MB. Max. memory is 11.5 GB. * Witness Printer took 47.30 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 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 6 locations. The remainder module has 159 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 36.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 35.6s. 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, 75 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 159 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 227 SDtfs, 537 SDslu, 626 SDs, 0 SdLazy, 64 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 344]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6334} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=-16, NULL=-9, NULL=6334, retValue_acc=0, NULL=-24, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bb59074=0, NULL=-19, NULL=-15, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44a368cf=0, retValue_acc=1, tmp___0=0, retValue_acc=0, tmp=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=6333, NULL=0, tmp___1=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@238f4d57=0, NULL=-12, NULL=-22, cleanupTimeShifts=4, NULL=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ceaa3a4=0, NULL=0, systemActive=1, waterLevel=1, NULL=-23, NULL=0, NULL=-2, \result=0, NULL=-13, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=-7, head=0, pumpRunning=0, NULL=-6, \result=0, NULL=-20, retValue_acc=1, NULL=0, tmp=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f07db49=63, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f375bea=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34022724=0, NULL=-21, NULL=-4, tmp=1, NULL=-5, tmp___2=63, tmp___0=0, NULL=-17, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=-8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e633a05=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71423bb1=0, tmp=0, NULL=-14, head=0, NULL=0, NULL=0, NULL=-3, NULL=0, NULL=0, NULL=-10, NULL=-11, NULL=0, NULL=-18} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L147] int pumpRunning = 0; [L148] int systemActive = 1; [L436] int cleanupTimeShifts = 4; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L512] int retValue_acc ; [L513] int tmp ; [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] return (retValue_acc); [L519] tmp = valid_product() [L521] COND TRUE \read(tmp) [L335] int splverifierCounter ; [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L339] int tmp___2 ; [L342] splverifierCounter = 0 Loop: [L344] COND TRUE 1 [L346] COND TRUE splverifierCounter < 4 [L352] tmp = __VERIFIER_nondet_int() [L354] COND FALSE !(\read(tmp)) [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND FALSE !(\read(tmp___0)) [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___2) [L155] COND FALSE !(\read(pumpRunning)) [L162] COND TRUE \read(systemActive) [L184] int tmp ; [L187] COND TRUE ! pumpRunning [L299] int retValue_acc ; [L300] int tmp ; [L301] int tmp___0 ; [L127] int retValue_acc ; [L130] COND TRUE waterLevel < 2 [L131] retValue_acc = 1 [L132] return (retValue_acc); [L305] tmp = isHighWaterSensorDry() [L307] COND TRUE \read(tmp) [L308] tmp___0 = 0 [L312] retValue_acc = tmp___0 [L313] return (retValue_acc); [L189] tmp = isHighWaterLevel() [L191] COND FALSE !(\read(tmp)) [L411] int tmp ; [L412] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L416] tmp = isMethaneLevelCritical() [L418] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...