./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product61_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4c52f58d-0aa7-4950-86c4-0d6683c77ee1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4c52f58d-0aa7-4950-86c4-0d6683c77ee1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4c52f58d-0aa7-4950-86c4-0d6683c77ee1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4c52f58d-0aa7-4950-86c4-0d6683c77ee1/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product61_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4c52f58d-0aa7-4950-86c4-0d6683c77ee1/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4c52f58d-0aa7-4950-86c4-0d6683c77ee1/bin-2019/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 0997f7b4913388226e163b59383b8166cd33b05b .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.23-635dfa2 [2018-12-01 16:57:19,197 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 16:57:19,198 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 16:57:19,204 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 16:57:19,204 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 16:57:19,204 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 16:57:19,205 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 16:57:19,206 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 16:57:19,207 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 16:57:19,207 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 16:57:19,208 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 16:57:19,208 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 16:57:19,209 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 16:57:19,210 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 16:57:19,210 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 16:57:19,211 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 16:57:19,211 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 16:57:19,213 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 16:57:19,214 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 16:57:19,215 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 16:57:19,216 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 16:57:19,217 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 16:57:19,218 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 16:57:19,218 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 16:57:19,218 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 16:57:19,219 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 16:57:19,219 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 16:57:19,220 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 16:57:19,220 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 16:57:19,221 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 16:57:19,221 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 16:57:19,222 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 16:57:19,222 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 16:57:19,222 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 16:57:19,223 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 16:57:19,223 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 16:57:19,223 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4c52f58d-0aa7-4950-86c4-0d6683c77ee1/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-01 16:57:19,231 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 16:57:19,231 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 16:57:19,232 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 16:57:19,232 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 16:57:19,232 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 16:57:19,233 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-01 16:57:19,233 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-01 16:57:19,233 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-01 16:57:19,233 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-01 16:57:19,233 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-01 16:57:19,233 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-01 16:57:19,233 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 16:57:19,234 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 16:57:19,234 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 16:57:19,234 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 16:57:19,234 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 16:57:19,234 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 16:57:19,234 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-01 16:57:19,234 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-01 16:57:19,235 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-01 16:57:19,235 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 16:57:19,235 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 16:57:19,235 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-01 16:57:19,235 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 16:57:19,235 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-01 16:57:19,235 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 16:57:19,235 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 16:57:19,236 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-01 16:57:19,236 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 16:57:19,236 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 16:57:19,236 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-01 16:57:19,237 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-01 16:57:19,237 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_4c52f58d-0aa7-4950-86c4-0d6683c77ee1/bin-2019/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 -> 0997f7b4913388226e163b59383b8166cd33b05b [2018-12-01 16:57:19,260 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 16:57:19,269 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 16:57:19,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 16:57:19,273 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 16:57:19,273 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 16:57:19,274 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4c52f58d-0aa7-4950-86c4-0d6683c77ee1/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product61_true-unreach-call_false-termination.cil.c [2018-12-01 16:57:19,312 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4c52f58d-0aa7-4950-86c4-0d6683c77ee1/bin-2019/uautomizer/data/085672598/80bd81df2ad149b7a45de0c955fc8d2c/FLAGbb712a957 [2018-12-01 16:57:19,756 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 16:57:19,756 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4c52f58d-0aa7-4950-86c4-0d6683c77ee1/sv-benchmarks/c/product-lines/minepump_spec3_product61_true-unreach-call_false-termination.cil.c [2018-12-01 16:57:19,762 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4c52f58d-0aa7-4950-86c4-0d6683c77ee1/bin-2019/uautomizer/data/085672598/80bd81df2ad149b7a45de0c955fc8d2c/FLAGbb712a957 [2018-12-01 16:57:19,770 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4c52f58d-0aa7-4950-86c4-0d6683c77ee1/bin-2019/uautomizer/data/085672598/80bd81df2ad149b7a45de0c955fc8d2c [2018-12-01 16:57:19,772 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 16:57:19,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 16:57:19,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 16:57:19,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 16:57:19,776 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 16:57:19,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:57:19" (1/1) ... [2018-12-01 16:57:19,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d622ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:19, skipping insertion in model container [2018-12-01 16:57:19,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:57:19" (1/1) ... [2018-12-01 16:57:19,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 16:57:19,802 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 16:57:19,950 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 16:57:19,994 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 16:57:20,053 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 16:57:20,071 INFO L195 MainTranslator]: Completed translation [2018-12-01 16:57:20,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:20 WrapperNode [2018-12-01 16:57:20,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 16:57:20,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 16:57:20,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 16:57:20,072 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 16:57:20,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:20" (1/1) ... [2018-12-01 16:57:20,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:20" (1/1) ... [2018-12-01 16:57:20,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 16:57:20,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 16:57:20,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 16:57:20,122 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 16:57:20,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:20" (1/1) ... [2018-12-01 16:57:20,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:20" (1/1) ... [2018-12-01 16:57:20,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:20" (1/1) ... [2018-12-01 16:57:20,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:20" (1/1) ... [2018-12-01 16:57:20,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:20" (1/1) ... [2018-12-01 16:57:20,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:20" (1/1) ... [2018-12-01 16:57:20,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:20" (1/1) ... [2018-12-01 16:57:20,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 16:57:20,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 16:57:20,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 16:57:20,153 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 16:57:20,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c52f58d-0aa7-4950-86c4-0d6683c77ee1/bin-2019/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 [2018-12-01 16:57:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 16:57:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-01 16:57:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 16:57:20,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 16:57:20,675 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 16:57:20,675 INFO L280 CfgBuilder]: Removed 354 assue(true) statements. [2018-12-01 16:57:20,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:57:20 BoogieIcfgContainer [2018-12-01 16:57:20,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 16:57:20,676 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-01 16:57:20,676 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-01 16:57:20,678 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-01 16:57:20,678 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 16:57:20,678 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 04:57:19" (1/3) ... [2018-12-01 16:57:20,679 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f944de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 04:57:20, skipping insertion in model container [2018-12-01 16:57:20,679 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 16:57:20,679 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:20" (2/3) ... [2018-12-01 16:57:20,680 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f944de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 04:57:20, skipping insertion in model container [2018-12-01 16:57:20,680 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 16:57:20,680 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:57:20" (3/3) ... [2018-12-01 16:57:20,681 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product61_true-unreach-call_false-termination.cil.c [2018-12-01 16:57:20,712 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 16:57:20,713 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-01 16:57:20,713 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-01 16:57:20,713 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-01 16:57:20,713 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 16:57:20,713 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 16:57:20,713 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-01 16:57:20,713 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 16:57:20,713 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-01 16:57:20,724 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states. [2018-12-01 16:57:20,744 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2018-12-01 16:57:20,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 16:57:20,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 16:57:20,750 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-01 16:57:20,750 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 16:57:20,750 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-01 16:57:20,750 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states. [2018-12-01 16:57:20,755 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2018-12-01 16:57:20,756 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 16:57:20,756 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 16:57:20,756 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-01 16:57:20,756 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 16:57:20,759 INFO L794 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.alloc(13);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.alloc(13);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(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.alloc(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.alloc(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.alloc(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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(30);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(9);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(21);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(30);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(9);call #t~string74.base, #t~string74.offset := #Ultimate.alloc(25); 12#L-1true havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 60#L627true 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; 229#L635true main_#t~ret37 := valid_product_#res;main_~tmp~7 := main_#t~ret37;havoc main_#t~ret37; 150#L557true assume 0 != main_~tmp~7; 189#L531true 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; 188#L586-1true [2018-12-01 16:57:20,760 INFO L796 eck$LassoCheckResult]: Loop: 188#L586-1true assume !false; 46#L55true assume test_~splverifierCounter~0 < 4; 159#L56true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 39#L64true assume !(0 != test_~tmp~0); 38#L64-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 208#L74true assume !(0 != test_~tmp___0~0); 186#L74-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 104#L84true assume 0 != test_~tmp___2~0; 230#L90-2true assume !(0 != ~pumpRunning~0); 56#L126true assume !(0 != ~systemActive~0); 146#L133true havoc __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_#t~ret40, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 121#L403-5true __utac_acc__Specification3_spec__1_#t~ret38 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; 221#L580true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 188#L586-1true [2018-12-01 16:57:20,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:57:20,763 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2018-12-01 16:57:20,764 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:57:20,765 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:57:20,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:20,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:57:20,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 16:57:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 16:57:20,881 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:57:20,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1675126795, now seen corresponding path program 1 times [2018-12-01 16:57:20,881 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:57:20,881 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:57:20,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:20,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:57:20,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 16:57:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 16:57:20,890 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:57:20,891 INFO L82 PathProgramCache]: Analyzing trace with hash 39152143, now seen corresponding path program 1 times [2018-12-01 16:57:20,891 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:57:20,891 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:57:20,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:20,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:57:20,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:57:20,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:57:20,973 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 16:57:20,974 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 16:57:21,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 16:57:21,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-01 16:57:21,025 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 6 states. [2018-12-01 16:57:21,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 16:57:21,102 INFO L93 Difference]: Finished difference Result 228 states and 331 transitions. [2018-12-01 16:57:21,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 16:57:21,104 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 228 states and 331 transitions. [2018-12-01 16:57:21,109 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2018-12-01 16:57:21,114 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 228 states to 221 states and 324 transitions. [2018-12-01 16:57:21,115 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 221 [2018-12-01 16:57:21,116 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 221 [2018-12-01 16:57:21,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 221 states and 324 transitions. [2018-12-01 16:57:21,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 16:57:21,118 INFO L705 BuchiCegarLoop]: Abstraction has 221 states and 324 transitions. [2018-12-01 16:57:21,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states and 324 transitions. [2018-12-01 16:57:21,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2018-12-01 16:57:21,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-12-01 16:57:21,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 324 transitions. [2018-12-01 16:57:21,144 INFO L728 BuchiCegarLoop]: Abstraction has 221 states and 324 transitions. [2018-12-01 16:57:21,144 INFO L608 BuchiCegarLoop]: Abstraction has 221 states and 324 transitions. [2018-12-01 16:57:21,144 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-01 16:57:21,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 221 states and 324 transitions. [2018-12-01 16:57:21,146 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2018-12-01 16:57:21,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 16:57:21,146 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 16:57:21,147 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-01 16:57:21,147 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 16:57:21,147 INFO L794 eck$LassoCheckResult]: Stem: 540#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.alloc(13);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.alloc(13);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(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.alloc(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.alloc(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.alloc(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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(30);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(9);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(21);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(30);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(9);call #t~string74.base, #t~string74.offset := #Ultimate.alloc(25); 489#L-1 havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 490#L627 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; 567#L635 main_#t~ret37 := valid_product_#res;main_~tmp~7 := main_#t~ret37;havoc main_#t~ret37; 671#L557 assume 0 != main_~tmp~7; 672#L531 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; 669#L586-1 [2018-12-01 16:57:21,148 INFO L796 eck$LassoCheckResult]: Loop: 669#L586-1 assume !false; 543#L55 assume test_~splverifierCounter~0 < 4; 544#L56 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 531#L64 assume !(0 != test_~tmp~0); 529#L64-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 530#L74 assume !(0 != test_~tmp___0~0); 598#L74-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 625#L84 assume 0 != test_~tmp___2~0; 626#L90-2 assume !(0 != ~pumpRunning~0); 559#L126 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 560#L210 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret5, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 675#L184-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 502#L158-3 assume !(0 == ~pumpRunning~0); 501#L133 havoc __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_#t~ret40, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 645#L403-5 __utac_acc__Specification3_spec__1_#t~ret38 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; 646#L580 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 669#L586-1 [2018-12-01 16:57:21,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:57:21,148 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2018-12-01 16:57:21,148 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:57:21,148 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:57:21,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:21,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:57:21,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 16:57:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 16:57:21,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:57:21,191 INFO L82 PathProgramCache]: Analyzing trace with hash 391395508, now seen corresponding path program 1 times [2018-12-01 16:57:21,191 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:57:21,191 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:57:21,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:21,192 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 16:57:21,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:57:21,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:57:21,216 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 16:57:21,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 16:57:21,217 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 16:57:21,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 16:57:21,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 16:57:21,217 INFO L87 Difference]: Start difference. First operand 221 states and 324 transitions. cyclomatic complexity: 105 Second operand 3 states. [2018-12-01 16:57:21,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 16:57:21,308 INFO L93 Difference]: Finished difference Result 223 states and 309 transitions. [2018-12-01 16:57:21,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 16:57:21,309 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 223 states and 309 transitions. [2018-12-01 16:57:21,311 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 152 [2018-12-01 16:57:21,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 223 states to 223 states and 309 transitions. [2018-12-01 16:57:21,313 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 223 [2018-12-01 16:57:21,313 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 223 [2018-12-01 16:57:21,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 223 states and 309 transitions. [2018-12-01 16:57:21,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 16:57:21,314 INFO L705 BuchiCegarLoop]: Abstraction has 223 states and 309 transitions. [2018-12-01 16:57:21,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states and 309 transitions. [2018-12-01 16:57:21,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2018-12-01 16:57:21,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-12-01 16:57:21,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 309 transitions. [2018-12-01 16:57:21,323 INFO L728 BuchiCegarLoop]: Abstraction has 223 states and 309 transitions. [2018-12-01 16:57:21,323 INFO L608 BuchiCegarLoop]: Abstraction has 223 states and 309 transitions. [2018-12-01 16:57:21,323 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-01 16:57:21,323 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 223 states and 309 transitions. [2018-12-01 16:57:21,325 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 152 [2018-12-01 16:57:21,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 16:57:21,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 16:57:21,326 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-01 16:57:21,326 INFO L867 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] [2018-12-01 16:57:21,326 INFO L794 eck$LassoCheckResult]: Stem: 1067#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.alloc(13);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.alloc(13);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(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.alloc(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.alloc(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.alloc(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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(30);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(9);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(21);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(30);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(9);call #t~string74.base, #t~string74.offset := #Ultimate.alloc(25); 956#L-1 havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 957#L627 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; 1091#L635 main_#t~ret37 := valid_product_#res;main_~tmp~7 := main_#t~ret37;havoc main_#t~ret37; 1022#L557 assume 0 != main_~tmp~7; 1023#L531 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; 1019#L586-1 [2018-12-01 16:57:21,327 INFO L796 eck$LassoCheckResult]: Loop: 1019#L586-1 assume !false; 1066#L55 assume test_~splverifierCounter~0 < 4; 1033#L56 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 1034#L64 assume !(0 != test_~tmp~0); 1037#L64-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 1040#L74 assume !(0 != test_~tmp___0~0); 1064#L74-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 953#L84 assume 0 != test_~tmp___2~0; 954#L90-2 assume !(0 != ~pumpRunning~0); 1086#L126 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1028#L210 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret5, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 1029#L184-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 983#L158-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret25, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 984#L443-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1056#L448-3 isHighWaterLevel_#t~ret25 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret25;havoc isHighWaterLevel_#t~ret25; 945#L329-9 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 946#L329-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1103#L335-3 processEnvironment__wrappee__highWaterSensor_#t~ret4 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret4;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4; 1089#L162-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 981#L133 havoc __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_#t~ret40, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 978#L403-5 __utac_acc__Specification3_spec__1_#t~ret38 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; 979#L580 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 1019#L586-1 [2018-12-01 16:57:21,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:57:21,327 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2018-12-01 16:57:21,327 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:57:21,327 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:57:21,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:21,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:57:21,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 16:57:21,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 16:57:21,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:57:21,361 INFO L82 PathProgramCache]: Analyzing trace with hash 697809952, now seen corresponding path program 1 times [2018-12-01 16:57:21,361 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:57:21,361 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:57:21,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:21,362 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 16:57:21,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 16:57:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 16:57:21,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:57:21,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1951115078, now seen corresponding path program 1 times [2018-12-01 16:57:21,373 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:57:21,373 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:57:21,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:21,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:57:21,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 16:57:21,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 16:57:21,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 16:57:21,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 16:57:21,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 16:57:21,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 16:57:21,534 INFO L87 Difference]: Start difference. First operand 223 states and 309 transitions. cyclomatic complexity: 88 Second operand 5 states. [2018-12-01 16:57:21,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 16:57:21,693 INFO L93 Difference]: Finished difference Result 747 states and 1037 transitions. [2018-12-01 16:57:21,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 16:57:21,694 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 747 states and 1037 transitions. [2018-12-01 16:57:21,697 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 532 [2018-12-01 16:57:21,699 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 747 states to 747 states and 1037 transitions. [2018-12-01 16:57:21,699 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 747 [2018-12-01 16:57:21,700 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 747 [2018-12-01 16:57:21,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 747 states and 1037 transitions. [2018-12-01 16:57:21,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 16:57:21,702 INFO L705 BuchiCegarLoop]: Abstraction has 747 states and 1037 transitions. [2018-12-01 16:57:21,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states and 1037 transitions. [2018-12-01 16:57:21,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 440. [2018-12-01 16:57:21,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2018-12-01 16:57:21,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 604 transitions. [2018-12-01 16:57:21,712 INFO L728 BuchiCegarLoop]: Abstraction has 440 states and 604 transitions. [2018-12-01 16:57:21,712 INFO L608 BuchiCegarLoop]: Abstraction has 440 states and 604 transitions. [2018-12-01 16:57:21,713 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-01 16:57:21,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 440 states and 604 transitions. [2018-12-01 16:57:21,714 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 304 [2018-12-01 16:57:21,714 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 16:57:21,714 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 16:57:21,715 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-01 16:57:21,715 INFO L867 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] [2018-12-01 16:57:21,715 INFO L794 eck$LassoCheckResult]: Stem: 2064#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.alloc(13);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.alloc(13);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(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.alloc(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.alloc(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.alloc(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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(30);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(9);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(21);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(30);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(9);call #t~string74.base, #t~string74.offset := #Ultimate.alloc(25); 1945#L-1 havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 1946#L627 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; 2097#L635 main_#t~ret37 := valid_product_#res;main_~tmp~7 := main_#t~ret37;havoc main_#t~ret37; 2015#L557 assume 0 != main_~tmp~7; 2016#L531 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; 2065#L586-1 [2018-12-01 16:57:21,715 INFO L796 eck$LassoCheckResult]: Loop: 2065#L586-1 assume !false; 2341#L55 assume test_~splverifierCounter~0 < 4; 2026#L56 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 2027#L64 assume !(0 != test_~tmp~0); 2031#L64-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 2035#L74 assume !(0 != test_~tmp___0~0); 2061#L74-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 1942#L84 assume 0 != test_~tmp___2~0; 1943#L90-2 assume !(0 != ~pumpRunning~0); 2116#L126 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 2333#L210 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret5, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 2188#L184-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 2329#L158-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret25, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 2325#L443-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 2323#L448-3 isHighWaterLevel_#t~ret25 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret25;havoc isHighWaterLevel_#t~ret25; 2320#L329-9 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 2317#L329-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 2313#L335-3 processEnvironment__wrappee__highWaterSensor_#t~ret4 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret4;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4; 2192#L162-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 2166#L133 havoc __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_#t~ret40, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 1967#L403-5 __utac_acc__Specification3_spec__1_#t~ret38 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; 1968#L580 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8);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; 2037#L435 __utac_acc__Specification3_spec__1_#t~ret39 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~3 := __utac_acc__Specification3_spec__1_#t~ret39;havoc __utac_acc__Specification3_spec__1_#t~ret39; 2038#L586 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3); 2065#L586-1 [2018-12-01 16:57:21,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:57:21,716 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2018-12-01 16:57:21,716 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:57:21,716 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:57:21,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:21,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:57:21,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 16:57:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 16:57:21,736 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:57:21,737 INFO L82 PathProgramCache]: Analyzing trace with hash 580478418, now seen corresponding path program 1 times [2018-12-01 16:57:21,737 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:57:21,737 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:57:21,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:21,738 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 16:57:21,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 16:57:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 16:57:21,744 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 16:57:21,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1879105672, now seen corresponding path program 1 times [2018-12-01 16:57:21,745 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 16:57:21,745 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 16:57:21,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:21,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 16:57:21,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 16:57:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 16:57:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 16:57:25,051 WARN L180 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 425 DAG size of output: 423 [2018-12-01 16:57:26,660 WARN L180 SmtUtils]: Spent 1.61 s on a formula simplification that was a NOOP. DAG size: 423 [2018-12-01 16:57:26,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 04:57:26 BoogieIcfgContainer [2018-12-01 16:57:26,689 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-01 16:57:26,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 16:57:26,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 16:57:26,690 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 16:57:26,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:57:20" (3/4) ... [2018-12-01 16:57:26,692 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-01 16:57:26,722 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4c52f58d-0aa7-4950-86c4-0d6683c77ee1/bin-2019/uautomizer/witness.graphml [2018-12-01 16:57:26,722 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 16:57:26,722 INFO L168 Benchmark]: Toolchain (without parser) took 6949.85 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 309.3 MB). Free memory was 951.7 MB in the beginning and 875.9 MB in the end (delta: 75.8 MB). Peak memory consumption was 385.1 MB. Max. memory is 11.5 GB. [2018-12-01 16:57:26,723 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 16:57:26,723 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -156.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-12-01 16:57:26,723 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.52 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-12-01 16:57:26,724 INFO L168 Benchmark]: Boogie Preprocessor took 30.57 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. [2018-12-01 16:57:26,724 INFO L168 Benchmark]: RCFGBuilder took 522.96 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: 93.0 MB). Peak memory consumption was 93.0 MB. Max. memory is 11.5 GB. [2018-12-01 16:57:26,724 INFO L168 Benchmark]: BuchiAutomizer took 6013.70 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 177.7 MB). Free memory was 1.0 GB in the beginning and 875.9 MB in the end (delta: 132.6 MB). Peak memory consumption was 321.7 MB. Max. memory is 11.5 GB. [2018-12-01 16:57:26,724 INFO L168 Benchmark]: Witness Printer took 32.41 ms. Allocated memory is still 1.3 GB. Free memory is still 875.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 16:57:26,725 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 298.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -156.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.52 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.57 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 522.96 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: 93.0 MB). Peak memory consumption was 93.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 6013.70 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 177.7 MB). Free memory was 1.0 GB in the beginning and 875.9 MB in the end (delta: 132.6 MB). Peak memory consumption was 321.7 MB. Max. memory is 11.5 GB. * Witness Printer took 32.41 ms. Allocated memory is still 1.3 GB. Free memory is still 875.9 MB. There was no memory consumed. 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 6 locations. The remainder module has 440 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 5.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 307 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 440 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 914 SDtfs, 2491 SDslu, 1205 SDs, 0 SdLazy, 209 SolverSat, 89 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 54]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@342514b3=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@666688e8=0, NULL=0, NULL=36, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e8de06d=0, NULL=35, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b6a1d42=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13bee837=56, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47b53d03=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6eb573a2=0, NULL=12, methaneLevelCritical=0, retValue_acc=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b840515=0, tmp___1=0, NULL=17, NULL=39, cleanupTimeShifts=4, tmp=0, NULL=27, tmp=0, waterLevel=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62ffe0a4=0, NULL=0, tmp___0=0, NULL=18, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=31, NULL=0, NULL=0, tmp=1, NULL=0, \result=1, NULL=29, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28fdd9b3=0, NULL=0, NULL=0, tmp=1, NULL=14, retValue_acc=1, NULL=19, tmp=0, head=0, NULL=0, NULL=34, NULL=38, NULL=26, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40265f62=0, tmp=0, NULL=0, NULL=0, NULL=37, retValue_acc=0, NULL=23, tmp___0=0, NULL=0, NULL=0, NULL=24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44e4c894=0, tmp=0, NULL=15, tmp___0=1, NULL=0, systemActive=1, NULL=11, \result=1, NULL=0, NULL=0, NULL=16, \result=0, NULL=0, retValue_acc=0, NULL=33, \result=0, NULL=0, NULL=0, NULL=28, tmp___2=56, splverifierCounter=0, \result=0, NULL=8, tmp___1=0, NULL=0, NULL=0, NULL=20, NULL=0, NULL=22} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L118] int pumpRunning = 0; [L119] int systemActive = 1; [L360] int waterLevel = 1; [L361] int methaneLevelCritical = 0; [L472] int cleanupTimeShifts = 4; [L809] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L548] int retValue_acc ; [L549] int tmp ; [L631] int retValue_acc ; [L634] retValue_acc = 1 [L635] return (retValue_acc); [L555] tmp = valid_product() [L557] COND TRUE \read(tmp) [L45] int splverifierCounter ; [L46] int tmp ; [L47] int tmp___0 ; [L48] int tmp___1 ; [L49] int tmp___2 ; [L52] splverifierCounter = 0 Loop: [L54] COND TRUE 1 [L56] COND TRUE splverifierCounter < 4 [L62] tmp = __VERIFIER_nondet_int() [L64] COND FALSE !(\read(tmp)) [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) [L126] COND FALSE !(\read(pumpRunning)) [L133] COND TRUE \read(systemActive) [L207] int tmp ; [L210] COND FALSE !(\read(pumpRunning)) [L181] int tmp ; [L184] COND FALSE !(\read(pumpRunning)) [L155] int tmp ; [L158] COND TRUE ! pumpRunning [L321] int retValue_acc ; [L322] int tmp ; [L323] int tmp___0 ; [L440] int retValue_acc ; [L443] COND TRUE waterLevel < 2 [L444] retValue_acc = 1 [L445] return (retValue_acc); [L327] tmp = isHighWaterSensorDry() [L329] COND TRUE \read(tmp) [L330] tmp___0 = 0 [L334] retValue_acc = tmp___0 [L335] return (retValue_acc); [L160] tmp = isHighWaterLevel() [L162] COND FALSE !(\read(tmp)) [L572] int tmp ; [L573] int tmp___0 ; [L574] int tmp___1 ; [L399] int retValue_acc ; [L402] retValue_acc = methaneLevelCritical [L403] return (retValue_acc); [L578] tmp = isMethaneLevelCritical() [L580] COND FALSE !(\read(tmp)) [L431] int retValue_acc ; [L434] retValue_acc = waterLevel [L435] return (retValue_acc); [L584] tmp___0 = getWaterLevel() [L586] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...