./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_171c861e-38ef-40c2-91cd-c73e0b11c2c1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_171c861e-38ef-40c2-91cd-c73e0b11c2c1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_171c861e-38ef-40c2-91cd-c73e0b11c2c1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_171c861e-38ef-40c2-91cd-c73e0b11c2c1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product18.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_171c861e-38ef-40c2-91cd-c73e0b11c2c1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_171c861e-38ef-40c2-91cd-c73e0b11c2c1/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 7139998cc0921a9b712bced77cbd2064338f38d5 .......................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-07 18:18:31,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:18:31,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:18:31,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:18:31,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:18:31,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:18:31,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:18:31,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:18:31,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:18:31,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:18:31,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:18:31,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:18:31,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:18:31,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:18:31,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:18:31,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:18:31,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:18:31,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:18:31,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:18:31,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:18:31,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:18:31,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:18:31,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:18:31,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:18:31,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:18:31,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:18:31,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:18:31,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:18:31,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:18:31,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:18:31,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:18:31,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:18:31,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:18:31,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:18:31,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:18:31,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:18:31,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:18:31,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:18:31,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:18:31,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:18:31,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:18:31,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_171c861e-38ef-40c2-91cd-c73e0b11c2c1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 18:18:31,216 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:18:31,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:18:31,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:18:31,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:18:31,217 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:18:31,217 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:18:31,217 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:18:31,217 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:18:31,218 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:18:31,218 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:18:31,218 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:18:31,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:18:31,218 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:18:31,218 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:18:31,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:18:31,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:18:31,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:18:31,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:18:31,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:18:31,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:18:31,219 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:18:31,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:18:31,220 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:18:31,220 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:18:31,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:18:31,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:18:31,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:18:31,220 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:18:31,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:18:31,220 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:18:31,221 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:18:31,221 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:18:31,221 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:18:31,221 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_171c861e-38ef-40c2-91cd-c73e0b11c2c1/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 -> 7139998cc0921a9b712bced77cbd2064338f38d5 [2019-12-07 18:18:31,331 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:18:31,341 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:18:31,344 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:18:31,345 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:18:31,345 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:18:31,346 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_171c861e-38ef-40c2-91cd-c73e0b11c2c1/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product18.cil.c [2019-12-07 18:18:31,388 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_171c861e-38ef-40c2-91cd-c73e0b11c2c1/bin/uautomizer/data/8bf7206f8/c68576e87408472cbef31668d24bf861/FLAGf25987d6d [2019-12-07 18:18:31,739 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:18:31,739 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_171c861e-38ef-40c2-91cd-c73e0b11c2c1/sv-benchmarks/c/product-lines/minepump_spec4_product18.cil.c [2019-12-07 18:18:31,748 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_171c861e-38ef-40c2-91cd-c73e0b11c2c1/bin/uautomizer/data/8bf7206f8/c68576e87408472cbef31668d24bf861/FLAGf25987d6d [2019-12-07 18:18:31,758 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_171c861e-38ef-40c2-91cd-c73e0b11c2c1/bin/uautomizer/data/8bf7206f8/c68576e87408472cbef31668d24bf861 [2019-12-07 18:18:31,760 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:18:31,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:18:31,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:18:31,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:18:31,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:18:31,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:18:31" (1/1) ... [2019-12-07 18:18:31,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7b5f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:31, skipping insertion in model container [2019-12-07 18:18:31,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:18:31" (1/1) ... [2019-12-07 18:18:31,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:18:31,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:18:32,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:18:32,029 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:18:32,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:18:32,108 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:18:32,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:32 WrapperNode [2019-12-07 18:18:32,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:18:32,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:18:32,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:18:32,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:18:32,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:32" (1/1) ... [2019-12-07 18:18:32,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:32" (1/1) ... [2019-12-07 18:18:32,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:18:32,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:18:32,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:18:32,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:18:32,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:32" (1/1) ... [2019-12-07 18:18:32,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:32" (1/1) ... [2019-12-07 18:18:32,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:32" (1/1) ... [2019-12-07 18:18:32,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:32" (1/1) ... [2019-12-07 18:18:32,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:32" (1/1) ... [2019-12-07 18:18:32,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:32" (1/1) ... [2019-12-07 18:18:32,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:32" (1/1) ... [2019-12-07 18:18:32,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:18:32,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:18:32,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:18:32,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:18:32,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_171c861e-38ef-40c2-91cd-c73e0b11c2c1/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 [2019-12-07 18:18:32,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:18:32,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 18:18:32,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:18:32,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:18:32,591 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:18:32,591 INFO L287 CfgBuilder]: Removed 98 assume(true) statements. [2019-12-07 18:18:32,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:18:32 BoogieIcfgContainer [2019-12-07 18:18:32,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:18:32,592 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:18:32,592 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:18:32,594 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:18:32,595 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:18:32,595 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:18:31" (1/3) ... [2019-12-07 18:18:32,596 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ce77acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:18:32, skipping insertion in model container [2019-12-07 18:18:32,596 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:18:32,596 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:32" (2/3) ... [2019-12-07 18:18:32,596 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ce77acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:18:32, skipping insertion in model container [2019-12-07 18:18:32,596 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:18:32,596 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:18:32" (3/3) ... [2019-12-07 18:18:32,597 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product18.cil.c [2019-12-07 18:18:32,625 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:18:32,625 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:18:32,625 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:18:32,626 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:18:32,626 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:18:32,626 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:18:32,626 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:18:32,626 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:18:32,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2019-12-07 18:18:32,654 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2019-12-07 18:18:32,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:18:32,654 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:18:32,660 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:18:32,660 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:18:32,660 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:18:32,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2019-12-07 18:18:32,663 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2019-12-07 18:18:32,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:18:32,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:18:32,664 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:18:32,664 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:18:32,668 INFO L794 eck$LassoCheckResult]: Stem: 35#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 13#L-1true havoc main_#res;havoc main_#t~ret23, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 50#L430true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 8#L438true main_#t~ret23 := valid_product_#res;main_~tmp~3 := main_#t~ret23;havoc main_#t~ret23; 25#L366true assume 0 != main_~tmp~3; 14#L340true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 71#L390-1true [2019-12-07 18:18:32,668 INFO L796 eck$LassoCheckResult]: Loop: 71#L390-1true assume !false; 47#L56true assume test_~splverifierCounter~0 < 4; 73#L57true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 18#L65true assume !(0 != test_~tmp~0); 16#L65-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 63#L75true assume !(0 != test_~tmp___0~0); 60#L75-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 43#L85true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 39#L93-2true assume !(0 != ~pumpRunning~0); 36#L128true assume !(0 != ~systemActive~0); 5#L135true havoc __utac_acc__Specification4_spec__1_#t~ret24, __utac_acc__Specification4_spec__1_#t~ret25, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 66#L518true __utac_acc__Specification4_spec__1_#t~ret24 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret24;havoc __utac_acc__Specification4_spec__1_#t~ret24; 67#L390true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 71#L390-1true [2019-12-07 18:18:32,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:32,672 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-12-07 18:18:32,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:32,680 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231850167] [2019-12-07 18:18:32,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:32,894 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:18:32,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:32,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1680729469, now seen corresponding path program 1 times [2019-12-07 18:18:32,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:32,895 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94418661] [2019-12-07 18:18:32,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:18:32,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:18:32,927 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94418661] [2019-12-07 18:18:32,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:18:32,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:18:32,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071206943] [2019-12-07 18:18:32,931 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 18:18:32,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:18:32,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:18:32,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:18:32,942 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 3 states. [2019-12-07 18:18:32,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:18:32,972 INFO L93 Difference]: Finished difference Result 72 states and 98 transitions. [2019-12-07 18:18:32,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:18:32,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 98 transitions. [2019-12-07 18:18:32,975 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2019-12-07 18:18:32,979 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 90 transitions. [2019-12-07 18:18:32,979 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2019-12-07 18:18:32,980 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2019-12-07 18:18:32,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 90 transitions. [2019-12-07 18:18:32,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:18:32,981 INFO L688 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2019-12-07 18:18:32,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 90 transitions. [2019-12-07 18:18:32,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2019-12-07 18:18:33,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-12-07 18:18:33,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2019-12-07 18:18:33,001 INFO L711 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2019-12-07 18:18:33,001 INFO L591 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2019-12-07 18:18:33,002 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:18:33,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 90 transitions. [2019-12-07 18:18:33,003 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2019-12-07 18:18:33,003 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:18:33,003 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:18:33,003 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:18:33,003 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:18:33,004 INFO L794 eck$LassoCheckResult]: Stem: 197#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 172#L-1 havoc main_#res;havoc main_#t~ret23, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 173#L430 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 165#L438 main_#t~ret23 := valid_product_#res;main_~tmp~3 := main_#t~ret23;havoc main_#t~ret23; 166#L366 assume 0 != main_~tmp~3; 174#L340 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 171#L390-1 [2019-12-07 18:18:33,004 INFO L796 eck$LassoCheckResult]: Loop: 171#L390-1 assume !false; 209#L56 assume test_~splverifierCounter~0 < 4; 210#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 180#L65 assume !(0 != test_~tmp~0); 176#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 177#L75 assume !(0 != test_~tmp___0~0); 200#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 206#L85 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 201#L93-2 assume !(0 != ~pumpRunning~0); 163#L128 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 178#L160 assume !(0 != ~pumpRunning~0); 160#L135 havoc __utac_acc__Specification4_spec__1_#t~ret24, __utac_acc__Specification4_spec__1_#t~ret25, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 161#L518 __utac_acc__Specification4_spec__1_#t~ret24 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret24;havoc __utac_acc__Specification4_spec__1_#t~ret24; 217#L390 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 171#L390-1 [2019-12-07 18:18:33,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:33,004 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-12-07 18:18:33,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:33,004 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24931752] [2019-12-07 18:18:33,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:33,079 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:18:33,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:33,080 INFO L82 PathProgramCache]: Analyzing trace with hash -589998917, now seen corresponding path program 1 times [2019-12-07 18:18:33,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:33,080 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389586957] [2019-12-07 18:18:33,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:33,090 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:18:33,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:33,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1013040609, now seen corresponding path program 1 times [2019-12-07 18:18:33,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:33,090 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812646516] [2019-12-07 18:18:33,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:33,143 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:18:57,977 WARN L192 SmtUtils]: Spent 24.76 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-12-07 18:19:10,292 WARN L192 SmtUtils]: Spent 12.31 s on a formula simplification that was a NOOP. DAG size: 400 [2019-12-07 18:19:10,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:19:10 BoogieIcfgContainer [2019-12-07 18:19:10,348 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:19:10,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:19:10,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:19:10,349 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:19:10,349 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:18:32" (3/4) ... [2019-12-07 18:19:10,352 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 18:19:10,393 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_171c861e-38ef-40c2-91cd-c73e0b11c2c1/bin/uautomizer/witness.graphml [2019-12-07 18:19:10,393 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:19:10,395 INFO L168 Benchmark]: Toolchain (without parser) took 38633.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -143.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:19:10,395 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:19:10,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -139.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:10,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:10,396 INFO L168 Benchmark]: Boogie Preprocessor took 24.74 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:19:10,397 INFO L168 Benchmark]: RCFGBuilder took 418.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.1 MB). Peak memory consumption was 50.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:10,397 INFO L168 Benchmark]: BuchiAutomizer took 37756.12 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 49.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -74.6 MB). Peak memory consumption was 249.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:10,397 INFO L168 Benchmark]: Witness Printer took 44.80 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: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:10,399 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 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 346.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -139.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.74 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 418.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.1 MB). Peak memory consumption was 50.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 37756.12 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 49.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -74.6 MB). Peak memory consumption was 249.4 MB. Max. memory is 11.5 GB. * Witness Printer took 44.80 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: 9.6 MB). Peak memory consumption was 9.6 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 65 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 37.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 37.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 65 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 95 SDtfs, 95 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 55]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9831} State at position 1 is {NULL=9847, NULL=0, NULL=0, NULL=9843, NULL=9831, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c44c5c9=0, NULL=9832, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7689d2f9=61, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6799f26=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e4b9c7d=0, NULL=9844, NULL=9853, NULL=9855, methaneLevelCritical=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=9833, NULL=0, tmp___1=0, NULL=9835, NULL=9840, cleanupTimeShifts=4, tmp=0, NULL=9852, tmp___0=0, NULL=9841, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=9851, \result=1, NULL=0, NULL=0, NULL=9850, tmp___0=0, NULL=9856, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67dbf84e=0, \result=1, head=0, pumpRunning=0, NULL=9849, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72de934f=0, NULL=9837, tmp=1, NULL=0, NULL=0, NULL=9834, NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=9848, tmp=1, retValue_acc=1, tmp___2=61, NULL=9839, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=9842, NULL=9846, tmp=0, head=0, NULL=0, NULL=9845, NULL=9838, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43a44560=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@516fc37c=0, NULL=0, NULL=9836, NULL=9854} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L281] int cleanupTimeShifts = 4; [L443] int waterLevel = 1; [L444] int methaneLevelCritical = 0; [L710] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L357] int retValue_acc ; [L358] int tmp ; [L434] int retValue_acc ; [L437] retValue_acc = 1 [L438] return (retValue_acc); [L364] tmp = valid_product() [L366] COND TRUE \read(tmp) [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 Loop: [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L276] systemActive = 1 [L128] COND FALSE !(\read(pumpRunning)) [L135] COND TRUE \read(systemActive) [L157] int tmp ; [L160] COND FALSE !(\read(pumpRunning)) [L383] int tmp ; [L384] int tmp___0 ; [L514] int retValue_acc ; [L517] retValue_acc = waterLevel [L518] return (retValue_acc); [L388] tmp = getWaterLevel() [L390] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...