./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product64.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/run_dir_7e6ae7df-6635-4566-971b-6110f60a5d3c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7e6ae7df-6635-4566-971b-6110f60a5d3c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7e6ae7df-6635-4566-971b-6110f60a5d3c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7e6ae7df-6635-4566-971b-6110f60a5d3c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7e6ae7df-6635-4566-971b-6110f60a5d3c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7e6ae7df-6635-4566-971b-6110f60a5d3c/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 d5d7e7efc35ba4bdb3849277724b5f801bec138c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 [2019-11-15 23:28:19,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:28:19,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:28:19,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:28:19,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:28:19,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:28:19,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:28:19,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:28:19,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:28:19,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:28:19,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:28:19,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:28:19,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:28:19,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:28:19,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:28:19,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:28:19,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:28:19,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:28:19,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:28:19,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:28:19,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:28:19,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:28:19,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:28:19,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:28:19,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:28:19,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:28:19,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:28:19,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:28:19,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:28:19,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:28:19,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:28:19,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:28:19,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:28:19,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:28:19,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:28:19,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:28:19,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:28:19,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:28:19,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:28:19,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:28:19,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:28:19,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7e6ae7df-6635-4566-971b-6110f60a5d3c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-15 23:28:19,210 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:28:19,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:28:19,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:28:19,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:28:19,214 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:28:19,214 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 23:28:19,214 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 23:28:19,215 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 23:28:19,215 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 23:28:19,215 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 23:28:19,216 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 23:28:19,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:28:19,217 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:28:19,217 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 23:28:19,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:28:19,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:28:19,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:28:19,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 23:28:19,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 23:28:19,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 23:28:19,218 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:28:19,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:28:19,219 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 23:28:19,219 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:28:19,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 23:28:19,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:28:19,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:28:19,220 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 23:28:19,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:28:19,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:28:19,221 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 23:28:19,224 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 23:28:19,224 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_7e6ae7df-6635-4566-971b-6110f60a5d3c/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 -> d5d7e7efc35ba4bdb3849277724b5f801bec138c [2019-11-15 23:28:19,259 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:28:19,273 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:28:19,278 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:28:19,279 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:28:19,279 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:28:19,280 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7e6ae7df-6635-4566-971b-6110f60a5d3c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2019-11-15 23:28:19,349 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e6ae7df-6635-4566-971b-6110f60a5d3c/bin/uautomizer/data/20858da85/1899eac976044d8e8ffe41cfa3238da3/FLAGff3837b10 [2019-11-15 23:28:19,843 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:28:19,844 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7e6ae7df-6635-4566-971b-6110f60a5d3c/sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2019-11-15 23:28:19,861 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e6ae7df-6635-4566-971b-6110f60a5d3c/bin/uautomizer/data/20858da85/1899eac976044d8e8ffe41cfa3238da3/FLAGff3837b10 [2019-11-15 23:28:20,353 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7e6ae7df-6635-4566-971b-6110f60a5d3c/bin/uautomizer/data/20858da85/1899eac976044d8e8ffe41cfa3238da3 [2019-11-15 23:28:20,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:28:20,358 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:28:20,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:28:20,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:28:20,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:28:20,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:28:20" (1/1) ... [2019-11-15 23:28:20,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8bf45f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:28:20, skipping insertion in model container [2019-11-15 23:28:20,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:28:20" (1/1) ... [2019-11-15 23:28:20,388 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:28:20,453 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:28:21,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:28:21,019 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:28:21,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:28:21,179 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:28:21,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:28:21 WrapperNode [2019-11-15 23:28:21,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:28:21,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:28:21,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:28:21,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:28:21,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:28:21" (1/1) ... [2019-11-15 23:28:21,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:28:21" (1/1) ... [2019-11-15 23:28:21,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:28:21,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:28:21,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:28:21,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:28:21,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:28:21" (1/1) ... [2019-11-15 23:28:21,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:28:21" (1/1) ... [2019-11-15 23:28:21,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:28:21" (1/1) ... [2019-11-15 23:28:21,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:28:21" (1/1) ... [2019-11-15 23:28:21,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:28:21" (1/1) ... [2019-11-15 23:28:21,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:28:21" (1/1) ... [2019-11-15 23:28:21,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:28:21" (1/1) ... [2019-11-15 23:28:21,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:28:21,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:28:21,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:28:21,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:28:21,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:28:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e6ae7df-6635-4566-971b-6110f60a5d3c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:28:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:28:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 23:28:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:28:21,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:28:22,698 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:28:22,699 INFO L284 CfgBuilder]: Removed 368 assume(true) statements. [2019-11-15 23:28:22,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:28:22 BoogieIcfgContainer [2019-11-15 23:28:22,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:28:22,701 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 23:28:22,701 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 23:28:22,704 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 23:28:22,705 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:28:22,705 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 11:28:20" (1/3) ... [2019-11-15 23:28:22,708 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@300ad5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 11:28:22, skipping insertion in model container [2019-11-15 23:28:22,709 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:28:22,709 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:28:21" (2/3) ... [2019-11-15 23:28:22,710 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@300ad5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 11:28:22, skipping insertion in model container [2019-11-15 23:28:22,710 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:28:22,710 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:28:22" (3/3) ... [2019-11-15 23:28:22,712 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2019-11-15 23:28:22,764 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 23:28:22,765 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 23:28:22,765 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 23:28:22,765 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:28:22,765 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:28:22,766 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 23:28:22,766 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:28:22,766 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 23:28:22,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 233 states. [2019-11-15 23:28:22,828 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 153 [2019-11-15 23:28:22,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:28:22,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:28:22,837 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:28:22,837 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:28:22,837 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 23:28:22,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 233 states. [2019-11-15 23:28:22,848 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 153 [2019-11-15 23:28:22,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:28:22,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:28:22,849 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:28:22,850 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:28:22,855 INFO L791 eck$LassoCheckResult]: Stem: 93#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25); 3#L-1true havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 32#L675true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 63#L683true main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 222#L630true assume 0 != main_~tmp~8; 195#L603true ~switchedOnBeforeTS~0 := 0; 110#L49true havoc test_#t~nondet3, test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 7#L70-1true [2019-11-15 23:28:22,856 INFO L793 eck$LassoCheckResult]: Loop: 7#L70-1true assume !false; 4#L109true assume test_~splverifierCounter~0 < 4; 102#L110true test_~tmp~1 := test_#t~nondet3;havoc test_#t~nondet3; 228#L118true assume !(0 != test_~tmp~1); 226#L118-1true test_~tmp___0~1 := test_#t~nondet4;havoc test_#t~nondet4; 145#L128true assume !(0 != test_~tmp___0~1); 143#L128-1true test_~tmp___2~0 := test_#t~nondet5;havoc test_#t~nondet5; 65#L138true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 185#L146-1true havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 44#L339true __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 9#L59true assume !(0 != ~pumpRunning~0); 58#L185true assume !(0 != ~systemActive~0); 129#L192true havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 5#L516true __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 10#L70true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 7#L70-1true [2019-11-15 23:28:22,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:28:22,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-15 23:28:22,871 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:28:22,871 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884480549] [2019-11-15 23:28:22,871 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:28:22,872 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:28:22,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:28:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:28:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:28:23,896 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:28:23,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:28:23,898 INFO L82 PathProgramCache]: Analyzing trace with hash 681690678, now seen corresponding path program 1 times [2019-11-15 23:28:23,898 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:28:23,898 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530247480] [2019-11-15 23:28:23,898 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:28:23,899 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:28:23,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:28:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:28:23,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:28:23,954 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530247480] [2019-11-15 23:28:23,955 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:28:23,956 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:28:23,956 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556008985] [2019-11-15 23:28:23,960 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 23:28:23,961 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:28:23,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:28:23,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:28:23,978 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 3 states. [2019-11-15 23:28:24,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:28:24,079 INFO L93 Difference]: Finished difference Result 459 states and 671 transitions. [2019-11-15 23:28:24,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:28:24,082 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 459 states and 671 transitions. [2019-11-15 23:28:24,097 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 302 [2019-11-15 23:28:24,114 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 459 states to 445 states and 656 transitions. [2019-11-15 23:28:24,115 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 445 [2019-11-15 23:28:24,118 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 445 [2019-11-15 23:28:24,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 445 states and 656 transitions. [2019-11-15 23:28:24,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 23:28:24,127 INFO L688 BuchiCegarLoop]: Abstraction has 445 states and 656 transitions. [2019-11-15 23:28:24,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states and 656 transitions. [2019-11-15 23:28:24,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 443. [2019-11-15 23:28:24,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2019-11-15 23:28:24,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 653 transitions. [2019-11-15 23:28:24,226 INFO L711 BuchiCegarLoop]: Abstraction has 443 states and 653 transitions. [2019-11-15 23:28:24,226 INFO L591 BuchiCegarLoop]: Abstraction has 443 states and 653 transitions. [2019-11-15 23:28:24,227 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 23:28:24,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 443 states and 653 transitions. [2019-11-15 23:28:24,231 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 300 [2019-11-15 23:28:24,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:28:24,231 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:28:24,232 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:28:24,232 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:28:24,233 INFO L791 eck$LassoCheckResult]: Stem: 842#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25); 701#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 702#L675 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 747#L683 main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 793#L630 assume 0 != main_~tmp~8; 956#L603 ~switchedOnBeforeTS~0 := 0; 863#L49 havoc test_#t~nondet3, test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 711#L70-1 [2019-11-15 23:28:24,233 INFO L793 eck$LassoCheckResult]: Loop: 711#L70-1 assume !false; 703#L109 assume test_~splverifierCounter~0 < 4; 704#L110 test_~tmp~1 := test_#t~nondet3;havoc test_#t~nondet3; 854#L118 assume !(0 != test_~tmp~1); 975#L118-1 test_~tmp___0~1 := test_#t~nondet4;havoc test_#t~nondet4; 976#L128 assume !(0 != test_~tmp___0~1); 903#L128-1 test_~tmp___2~0 := test_#t~nondet5;havoc test_#t~nondet5; 794#L138 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 796#L146-1 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 766#L339 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 714#L59 assume !(0 != ~pumpRunning~0); 715#L185 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 786#L269 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~3;havoc processEnvironment__wrappee__methaneQuery_~tmp~3; 892#L243-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 927#L217-3 assume !(0 == ~pumpRunning~0); 884#L192 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 706#L516 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 707#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 711#L70-1 [2019-11-15 23:28:24,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:28:24,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-15 23:28:24,235 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:28:24,235 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888646190] [2019-11-15 23:28:24,235 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:28:24,236 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:28:24,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:28:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:28:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:28:24,586 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:28:24,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:28:24,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1785171479, now seen corresponding path program 1 times [2019-11-15 23:28:24,587 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:28:24,587 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963743791] [2019-11-15 23:28:24,588 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:28:24,588 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:28:24,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:28:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:28:24,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:28:24,605 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963743791] [2019-11-15 23:28:24,605 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:28:24,605 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:28:24,606 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2572403] [2019-11-15 23:28:24,606 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 23:28:24,606 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:28:24,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:28:24,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:28:24,607 INFO L87 Difference]: Start difference. First operand 443 states and 653 transitions. cyclomatic complexity: 213 Second operand 3 states. [2019-11-15 23:28:24,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:28:24,739 INFO L93 Difference]: Finished difference Result 452 states and 631 transitions. [2019-11-15 23:28:24,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:28:24,740 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 452 states and 631 transitions. [2019-11-15 23:28:24,744 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 315 [2019-11-15 23:28:24,750 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 452 states to 452 states and 631 transitions. [2019-11-15 23:28:24,750 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 452 [2019-11-15 23:28:24,751 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 452 [2019-11-15 23:28:24,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 452 states and 631 transitions. [2019-11-15 23:28:24,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 23:28:24,759 INFO L688 BuchiCegarLoop]: Abstraction has 452 states and 631 transitions. [2019-11-15 23:28:24,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states and 631 transitions. [2019-11-15 23:28:24,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2019-11-15 23:28:24,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2019-11-15 23:28:24,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 631 transitions. [2019-11-15 23:28:24,782 INFO L711 BuchiCegarLoop]: Abstraction has 452 states and 631 transitions. [2019-11-15 23:28:24,782 INFO L591 BuchiCegarLoop]: Abstraction has 452 states and 631 transitions. [2019-11-15 23:28:24,783 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 23:28:24,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 452 states and 631 transitions. [2019-11-15 23:28:24,786 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 315 [2019-11-15 23:28:24,786 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:28:24,786 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:28:24,789 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:28:24,789 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:28:24,790 INFO L791 eck$LassoCheckResult]: Stem: 1787#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25); 1602#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 1603#L675 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1708#L683 main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 1747#L630 assume 0 != main_~tmp~8; 1758#L603 ~switchedOnBeforeTS~0 := 0; 1759#L49 havoc test_#t~nondet3, test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1799#L70-1 [2019-11-15 23:28:24,790 INFO L793 eck$LassoCheckResult]: Loop: 1799#L70-1 assume !false; 1906#L109 assume test_~splverifierCounter~0 < 4; 1905#L110 test_~tmp~1 := test_#t~nondet3;havoc test_#t~nondet3; 1904#L118 assume !(0 != test_~tmp~1); 1902#L118-1 test_~tmp___0~1 := test_#t~nondet4;havoc test_#t~nondet4; 1901#L128 assume !(0 != test_~tmp___0~1); 1634#L128-1 test_~tmp___2~0 := test_#t~nondet5;havoc test_#t~nondet5; 1635#L138 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1744#L146-1 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1721#L339 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 1722#L59 assume !(0 != ~pumpRunning~0); 1855#L185 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 1894#L269 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~3;havoc processEnvironment__wrappee__methaneQuery_~tmp~3; 1892#L243-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 1808#L217-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret28, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1636#L524-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1637#L529-3 isHighWaterLevel_#t~ret28 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret28;havoc isHighWaterLevel_#t~ret28; 1706#L388-9 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~2 := 0; 1738#L388-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1727#L394-3 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 1661#L221-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 1662#L192 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1911#L516 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 1907#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 1799#L70-1 [2019-11-15 23:28:24,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:28:24,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-15 23:28:24,791 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:28:24,791 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126396180] [2019-11-15 23:28:24,791 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:28:24,791 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:28:24,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:28:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:28:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:28:25,180 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:28:25,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:28:25,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1255643605, now seen corresponding path program 1 times [2019-11-15 23:28:25,182 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:28:25,183 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826788566] [2019-11-15 23:28:25,183 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:28:25,183 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:28:25,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:28:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:28:25,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:28:25,247 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826788566] [2019-11-15 23:28:25,248 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:28:25,248 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 23:28:25,248 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205233915] [2019-11-15 23:28:25,248 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 23:28:25,248 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:28:25,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:28:25,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:28:25,249 INFO L87 Difference]: Start difference. First operand 452 states and 631 transitions. cyclomatic complexity: 182 Second operand 5 states. [2019-11-15 23:28:25,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:28:25,617 INFO L93 Difference]: Finished difference Result 2147 states and 3011 transitions. [2019-11-15 23:28:25,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 23:28:25,617 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2147 states and 3011 transitions. [2019-11-15 23:28:25,637 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1478 [2019-11-15 23:28:25,656 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2147 states to 2147 states and 3011 transitions. [2019-11-15 23:28:25,657 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2147 [2019-11-15 23:28:25,659 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2147 [2019-11-15 23:28:25,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2147 states and 3011 transitions. [2019-11-15 23:28:25,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 23:28:25,662 INFO L688 BuchiCegarLoop]: Abstraction has 2147 states and 3011 transitions. [2019-11-15 23:28:25,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states and 3011 transitions. [2019-11-15 23:28:25,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 891. [2019-11-15 23:28:25,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2019-11-15 23:28:25,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1231 transitions. [2019-11-15 23:28:25,685 INFO L711 BuchiCegarLoop]: Abstraction has 891 states and 1231 transitions. [2019-11-15 23:28:25,686 INFO L591 BuchiCegarLoop]: Abstraction has 891 states and 1231 transitions. [2019-11-15 23:28:25,686 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-15 23:28:25,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 891 states and 1231 transitions. [2019-11-15 23:28:25,691 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 626 [2019-11-15 23:28:25,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:28:25,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:28:25,693 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:28:25,693 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:28:25,693 INFO L791 eck$LassoCheckResult]: Stem: 4407#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25); 4220#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 4221#L675 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 4334#L683 main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 4368#L630 assume 0 != main_~tmp~8; 4378#L603 ~switchedOnBeforeTS~0 := 0; 4379#L49 havoc test_#t~nondet3, test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 4423#L70-1 [2019-11-15 23:28:25,694 INFO L793 eck$LassoCheckResult]: Loop: 4423#L70-1 assume !false; 4716#L109 assume test_~splverifierCounter~0 < 4; 4715#L110 test_~tmp~1 := test_#t~nondet3;havoc test_#t~nondet3; 4714#L118 assume !(0 != test_~tmp~1); 4687#L118-1 test_~tmp___0~1 := test_#t~nondet4;havoc test_#t~nondet4; 4676#L128 assume !(0 != test_~tmp___0~1); 4672#L128-1 test_~tmp___2~0 := test_#t~nondet5;havoc test_#t~nondet5; 4668#L138 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 4364#L146-1 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 4345#L339 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 4240#L59 assume !(0 != ~pumpRunning~0); 4241#L185 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 4357#L269 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~3;havoc processEnvironment__wrappee__methaneQuery_~tmp~3; 4669#L243-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 4646#L217-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret28, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 4643#L524-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 4621#L529-3 isHighWaterLevel_#t~ret28 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret28;havoc isHighWaterLevel_#t~ret28; 4619#L388-9 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~2 := 0; 4617#L388-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 4616#L394-3 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 4615#L221-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 4294#L192 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 4439#L516 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 4242#L70 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 4243#L339-1 __utac_acc__Specification5_spec__3_#t~ret2 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 4349#L74 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 4423#L70-1 [2019-11-15 23:28:25,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:28:25,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-15 23:28:25,694 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:28:25,694 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458526805] [2019-11-15 23:28:25,695 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:28:25,695 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:28:25,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:28:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:28:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:28:26,002 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:28:26,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:28:26,003 INFO L82 PathProgramCache]: Analyzing trace with hash -212312784, now seen corresponding path program 1 times [2019-11-15 23:28:26,003 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:28:26,003 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304949559] [2019-11-15 23:28:26,003 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:28:26,004 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:28:26,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:28:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:28:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:28:26,015 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:28:26,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:28:26,016 INFO L82 PathProgramCache]: Analyzing trace with hash 2116442870, now seen corresponding path program 1 times [2019-11-15 23:28:26,016 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:28:26,016 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336037811] [2019-11-15 23:28:26,016 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:28:26,017 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:28:26,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:28:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:28:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:28:26,358 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:28:26,529 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-11-15 23:28:51,629 WARN L191 SmtUtils]: Spent 25.01 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-11-15 23:29:03,428 WARN L191 SmtUtils]: Spent 11.79 s on a formula simplification that was a NOOP. DAG size: 451 [2019-11-15 23:29:03,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 11:29:03 BoogieIcfgContainer [2019-11-15 23:29:03,494 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 23:29:03,494 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:29:03,494 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:29:03,494 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:29:03,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:28:22" (3/4) ... [2019-11-15 23:29:03,497 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-15 23:29:03,561 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7e6ae7df-6635-4566-971b-6110f60a5d3c/bin/uautomizer/witness.graphml [2019-11-15 23:29:03,561 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:29:03,563 INFO L168 Benchmark]: Toolchain (without parser) took 43204.53 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 303.6 MB). Free memory was 934.3 MB in the beginning and 1.2 GB in the end (delta: -244.2 MB). Peak memory consumption was 59.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:29:03,563 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:29:03,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 809.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 934.3 MB in the beginning and 1.1 GB in the end (delta: -195.2 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:29:03,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 121.19 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:29:03,564 INFO L168 Benchmark]: Boogie Preprocessor took 127.37 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. [2019-11-15 23:29:03,565 INFO L168 Benchmark]: RCFGBuilder took 1265.41 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: 97.6 MB). Peak memory consumption was 97.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:29:03,565 INFO L168 Benchmark]: BuchiAutomizer took 40792.82 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 156.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -169.7 MB). Peak memory consumption was 274.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:29:03,566 INFO L168 Benchmark]: Witness Printer took 67.22 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:29:03,568 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 809.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 934.3 MB in the beginning and 1.1 GB in the end (delta: -195.2 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 121.19 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 127.37 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 1265.41 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: 97.6 MB). Peak memory consumption was 97.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 40792.82 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 156.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -169.7 MB). Peak memory consumption was 274.7 MB. Max. memory is 11.5 GB. * Witness Printer took 67.22 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 891 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 40.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 39.7s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 1258 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 891 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1081 SDtfs, 1812 SDslu, 1730 SDs, 0 SdLazy, 245 SolverSat, 72 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI3 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: 108]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=15396} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=15396, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a9384d9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@706cf13b=53, NULL=-5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5187918d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d1636=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e7d75ce=0, NULL=0, NULL=15392, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5816ab5e=0, retValue_acc=1, NULL=15386, retValue_acc=0, tmp___1=0, NULL=-11, NULL=7174, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cb82287=0, NULL=15384, NULL=0, NULL=0, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e0a7d01=0, NULL=15381, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=-7, NULL=0, NULL=0, NULL=0, tmp=1, \result=1, NULL=15395, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@767ffb89=0, tmp___0=0, tmp=1, retValue_acc=1, NULL=-4, head=0, tmp=0, NULL=15393, NULL=0, NULL=0, NULL=0, NULL=15391, NULL=-9, tmp=0, NULL=-10, NULL=0, NULL=0, NULL=15394, retValue_acc=0, NULL=-8, NULL=-14, tmp___0=0, NULL=0, NULL=0, tmp=1, switchedOnBeforeTS=0, NULL=15382, NULL=15383, tmp=0, \result=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=15385, \result=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57cf5998=0, tmp___0=0, \result=0, NULL=-6, NULL=0, NULL=0, NULL=6875, NULL=0, tmp___2=53, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@619c8239=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b98b33a=0, NULL=15390, retValue_acc=0, NULL=-13, NULL=0, NULL=15388} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L43] int switchedOnBeforeTS ; [L175] int pumpRunning = 0; [L176] int systemActive = 1; [L441] int waterLevel = 1; [L442] int methaneLevelCritical = 0; [L544] int cleanupTimeShifts = 4; [L857] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L621] int retValue_acc ; [L622] int tmp ; [L679] int retValue_acc ; [L682] retValue_acc = 1 [L683] return (retValue_acc); [L628] tmp = valid_product() [L630] COND TRUE \read(tmp) [L48] switchedOnBeforeTS = 0 [L99] int splverifierCounter ; [L100] int tmp ; [L101] int tmp___0 ; [L102] int tmp___1 ; [L103] int tmp___2 ; [L106] splverifierCounter = 0 Loop: [L108] COND TRUE 1 [L110] COND TRUE splverifierCounter < 4 [L116] tmp = __VERIFIER_nondet_int() [L118] COND FALSE !(\read(tmp)) [L126] tmp___0 = __VERIFIER_nondet_int() [L128] COND FALSE !(\read(tmp___0)) [L136] tmp___2 = __VERIFIER_nondet_int() [L138] COND TRUE \read(tmp___2) [L436] systemActive = 1 [L335] int retValue_acc ; [L338] retValue_acc = pumpRunning [L339] return (retValue_acc); [L57] switchedOnBeforeTS = isPumpRunning() [L185] COND FALSE !(\read(pumpRunning)) [L192] COND TRUE \read(systemActive) [L266] int tmp ; [L269] COND FALSE !(\read(pumpRunning)) [L240] int tmp ; [L243] COND FALSE !(\read(pumpRunning)) [L214] int tmp ; [L217] COND TRUE ! pumpRunning [L380] int retValue_acc ; [L381] int tmp ; [L382] int tmp___0 ; [L521] int retValue_acc ; [L524] COND TRUE waterLevel < 2 [L525] retValue_acc = 1 [L526] return (retValue_acc); [L386] tmp = isHighWaterSensorDry() [L388] COND TRUE \read(tmp) [L389] tmp___0 = 0 [L393] retValue_acc = tmp___0 [L394] return (retValue_acc); [L219] tmp = isHighWaterLevel() [L221] COND FALSE !(\read(tmp)) [L63] int tmp ; [L64] int tmp___0 ; [L512] int retValue_acc ; [L515] retValue_acc = waterLevel [L516] return (retValue_acc); [L68] tmp = getWaterLevel() [L70] COND TRUE tmp != 2 [L335] int retValue_acc ; [L338] retValue_acc = pumpRunning [L339] return (retValue_acc); [L72] tmp___0 = isPumpRunning() [L74] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...