./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product08.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product08.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 2898c1a8e6ddf29823b493aba00c6d729c0a21bb ................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 21:12:11,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:12:11,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:12:11,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:12:11,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:12:11,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:12:11,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:12:11,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:12:11,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:12:11,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:12:11,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:12:11,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:12:11,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:12:11,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:12:11,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:12:11,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:12:11,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:12:11,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:12:11,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:12:11,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:12:11,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:12:11,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:12:11,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:12:11,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:12:11,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:12:11,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:12:11,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:12:11,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:12:11,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:12:11,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:12:11,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:12:11,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:12:11,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:12:11,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:12:11,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:12:11,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:12:11,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:12:11,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:12:11,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:12:11,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:12:11,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:12:11,188 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:12:11,214 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:12:11,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:12:11,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:12:11,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:12:11,217 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:12:11,217 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:12:11,218 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:12:11,218 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:12:11,218 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:12:11,218 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:12:11,220 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:12:11,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:12:11,220 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:12:11,221 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:12:11,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:12:11,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:12:11,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:12:11,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:12:11,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:12:11,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:12:11,223 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:12:11,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:12:11,223 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:12:11,224 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:12:11,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:12:11,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:12:11,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:12:11,225 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:12:11,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:12:11,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:12:11,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:12:11,227 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:12:11,228 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:12:11,229 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 2898c1a8e6ddf29823b493aba00c6d729c0a21bb [2019-11-28 21:12:11,555 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:12:11,567 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:12:11,571 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:12:11,573 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:12:11,573 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:12:11,574 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product08.cil.c [2019-11-28 21:12:11,633 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76e9d77b2/48d6582b6d084198b43cb0ac2cb7227f/FLAG1fbc5f504 [2019-11-28 21:12:12,128 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:12:12,129 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product08.cil.c [2019-11-28 21:12:12,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76e9d77b2/48d6582b6d084198b43cb0ac2cb7227f/FLAG1fbc5f504 [2019-11-28 21:12:12,464 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76e9d77b2/48d6582b6d084198b43cb0ac2cb7227f [2019-11-28 21:12:12,467 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:12:12,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:12:12,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:12:12,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:12:12,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:12:12,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:12:12" (1/1) ... [2019-11-28 21:12:12,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce269f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:12, skipping insertion in model container [2019-11-28 21:12:12,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:12:12" (1/1) ... [2019-11-28 21:12:12,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:12:12,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:12:12,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:12:12,993 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:12:13,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:12:13,102 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:12:13,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:13 WrapperNode [2019-11-28 21:12:13,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:12:13,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:12:13,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:12:13,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:12:13,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:13" (1/1) ... [2019-11-28 21:12:13,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:13" (1/1) ... [2019-11-28 21:12:13,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:12:13,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:12:13,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:12:13,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:12:13,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:13" (1/1) ... [2019-11-28 21:12:13,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:13" (1/1) ... [2019-11-28 21:12:13,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:13" (1/1) ... [2019-11-28 21:12:13,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:13" (1/1) ... [2019-11-28 21:12:13,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:13" (1/1) ... [2019-11-28 21:12:13,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:13" (1/1) ... [2019-11-28 21:12:13,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:13" (1/1) ... [2019-11-28 21:12:13,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:12:13,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:12:13,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:12:13,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:12:13,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 21:12:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:12:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:12:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:12:13,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:12:14,063 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:12:14,064 INFO L287 CfgBuilder]: Removed 116 assume(true) statements. [2019-11-28 21:12:14,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:12:14 BoogieIcfgContainer [2019-11-28 21:12:14,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:12:14,066 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:12:14,066 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:12:14,069 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:12:14,070 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:12:14,071 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:12:12" (1/3) ... [2019-11-28 21:12:14,072 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3aea810a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:12:14, skipping insertion in model container [2019-11-28 21:12:14,072 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:12:14,072 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:13" (2/3) ... [2019-11-28 21:12:14,072 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3aea810a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:12:14, skipping insertion in model container [2019-11-28 21:12:14,073 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:12:14,073 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:12:14" (3/3) ... [2019-11-28 21:12:14,074 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product08.cil.c [2019-11-28 21:12:14,121 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:12:14,121 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:12:14,122 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:12:14,122 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:12:14,122 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:12:14,122 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:12:14,122 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:12:14,123 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:12:14,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2019-11-28 21:12:14,165 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-11-28 21:12:14,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:14,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:14,172 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:14,172 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:14,173 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:12:14,173 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2019-11-28 21:12:14,179 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-11-28 21:12:14,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:14,179 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:14,180 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:14,181 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:14,185 INFO L794 eck$LassoCheckResult]: Stem: 36#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(13);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string5.base, #t~string5.offset, 1);call write~init~int(110, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 2 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(102, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(102, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 3 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string9.base, #t~string9.offset, 1);call write~init~int(80, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(117, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(109, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(112, #t~string9.base, 4 + #t~string9.offset, 1);call write~init~int(58, #t~string9.base, 5 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 6 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string15.base, #t~string15.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 15#L-1true havoc main_#res;havoc main_#t~ret22, main_~retValue_acc~2, main_~tmp~2;havoc main_~retValue_acc~2;havoc main_~tmp~2; 30#L406true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 35#L414true main_#t~ret22 := valid_product_#res;main_~tmp~2 := main_#t~ret22;havoc main_#t~ret22; 37#L370true assume 0 != main_~tmp~2; 60#L342true ~switchedOnBeforeTS~0 := 0; 12#L427true havoc test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 70#L448-1true [2019-11-28 21:12:14,186 INFO L796 eck$LassoCheckResult]: Loop: 70#L448-1true assume !false; 75#L225true assume test_~splverifierCounter~0 < 4; 20#L226true test_~tmp~1 := test_#t~nondet18;havoc test_#t~nondet18; 34#L234true assume !(0 != test_~tmp~1); 14#L234-1true test_~tmp___0~0 := test_#t~nondet19;havoc test_#t~nondet19; 71#L244true assume !(0 != test_~tmp___0~0); 64#L244-1true test_~tmp___2~0 := test_#t~nondet20;havoc test_#t~nondet20; 41#L254true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 52#L262-1true havoc __utac_acc__Specification5_spec__2_#t~ret24;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; 31#L147true __utac_acc__Specification5_spec__2_#t~ret24 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret24;havoc __utac_acc__Specification5_spec__2_#t~ret24; 67#L437true assume !(0 != ~pumpRunning~0); 13#L62true assume !(0 != ~systemActive~0); 3#L69true havoc __utac_acc__Specification5_spec__3_#t~ret25, __utac_acc__Specification5_spec__3_#t~ret26, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 53#L920true __utac_acc__Specification5_spec__3_#t~ret25 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret25;havoc __utac_acc__Specification5_spec__3_#t~ret25; 65#L448true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 70#L448-1true [2019-11-28 21:12:14,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:14,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:12:14,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:14,202 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930333775] [2019-11-28 21:12:14,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:14,597 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:14,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:14,599 INFO L82 PathProgramCache]: Analyzing trace with hash 674918198, now seen corresponding path program 1 times [2019-11-28 21:12:14,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:14,600 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047372337] [2019-11-28 21:12:14,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:12:14,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:12:14,671 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047372337] [2019-11-28 21:12:14,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:12:14,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:12:14,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462464309] [2019-11-28 21:12:14,679 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:12:14,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:12:14,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:12:14,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:12:14,700 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 3 states. [2019-11-28 21:12:14,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:12:14,775 INFO L93 Difference]: Finished difference Result 147 states and 203 transitions. [2019-11-28 21:12:14,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:12:14,778 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 147 states and 203 transitions. [2019-11-28 21:12:14,784 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2019-11-28 21:12:14,791 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 147 states to 133 states and 188 transitions. [2019-11-28 21:12:14,793 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 133 [2019-11-28 21:12:14,794 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 133 [2019-11-28 21:12:14,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 133 states and 188 transitions. [2019-11-28 21:12:14,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:12:14,796 INFO L688 BuchiCegarLoop]: Abstraction has 133 states and 188 transitions. [2019-11-28 21:12:14,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states and 188 transitions. [2019-11-28 21:12:14,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2019-11-28 21:12:14,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-11-28 21:12:14,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 185 transitions. [2019-11-28 21:12:14,832 INFO L711 BuchiCegarLoop]: Abstraction has 131 states and 185 transitions. [2019-11-28 21:12:14,832 INFO L591 BuchiCegarLoop]: Abstraction has 131 states and 185 transitions. [2019-11-28 21:12:14,833 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:12:14,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states and 185 transitions. [2019-11-28 21:12:14,836 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2019-11-28 21:12:14,836 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:14,836 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:14,837 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:14,837 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:14,837 INFO L794 eck$LassoCheckResult]: Stem: 286#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(13);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string5.base, #t~string5.offset, 1);call write~init~int(110, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 2 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(102, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(102, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 3 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string9.base, #t~string9.offset, 1);call write~init~int(80, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(117, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(109, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(112, #t~string9.base, 4 + #t~string9.offset, 1);call write~init~int(58, #t~string9.base, 5 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 6 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string15.base, #t~string15.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 257#L-1 havoc main_#res;havoc main_#t~ret22, main_~retValue_acc~2, main_~tmp~2;havoc main_~retValue_acc~2;havoc main_~tmp~2; 258#L406 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 279#L414 main_#t~ret22 := valid_product_#res;main_~tmp~2 := main_#t~ret22;havoc main_#t~ret22; 285#L370 assume 0 != main_~tmp~2; 287#L342 ~switchedOnBeforeTS~0 := 0; 251#L427 havoc test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 252#L448-1 [2019-11-28 21:12:14,838 INFO L796 eck$LassoCheckResult]: Loop: 252#L448-1 assume !false; 320#L225 assume test_~splverifierCounter~0 < 4; 321#L226 test_~tmp~1 := test_#t~nondet18;havoc test_#t~nondet18; 354#L234 assume !(0 != test_~tmp~1); 352#L234-1 test_~tmp___0~0 := test_#t~nondet19;havoc test_#t~nondet19; 351#L244 assume !(0 != test_~tmp___0~0); 349#L244-1 test_~tmp___2~0 := test_#t~nondet20;havoc test_#t~nondet20; 348#L254 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 294#L262-1 havoc __utac_acc__Specification5_spec__2_#t~ret24;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; 346#L147 __utac_acc__Specification5_spec__2_#t~ret24 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret24;havoc __utac_acc__Specification5_spec__2_#t~ret24; 316#L437 assume !(0 != ~pumpRunning~0); 253#L62 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret0, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 254#L94 assume !(0 != ~pumpRunning~0); 233#L69 havoc __utac_acc__Specification5_spec__3_#t~ret25, __utac_acc__Specification5_spec__3_#t~ret26, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 234#L920 __utac_acc__Specification5_spec__3_#t~ret25 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret25;havoc __utac_acc__Specification5_spec__3_#t~ret25; 309#L448 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 252#L448-1 [2019-11-28 21:12:14,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:14,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:12:14,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:14,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530964640] [2019-11-28 21:12:14,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:14,981 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:14,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:14,982 INFO L82 PathProgramCache]: Analyzing trace with hash -572900797, now seen corresponding path program 1 times [2019-11-28 21:12:14,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:14,983 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497599851] [2019-11-28 21:12:14,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:15,008 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:15,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:15,009 INFO L82 PathProgramCache]: Analyzing trace with hash -747661431, now seen corresponding path program 1 times [2019-11-28 21:12:15,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:15,010 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007814948] [2019-11-28 21:12:15,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:12:15,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:12:15,135 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007814948] [2019-11-28 21:12:15,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:12:15,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:12:15,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810109789] [2019-11-28 21:12:15,273 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2019-11-28 21:12:15,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:12:15,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:12:15,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:12:15,332 INFO L87 Difference]: Start difference. First operand 131 states and 185 transitions. cyclomatic complexity: 57 Second operand 5 states. [2019-11-28 21:12:15,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:12:15,528 INFO L93 Difference]: Finished difference Result 356 states and 495 transitions. [2019-11-28 21:12:15,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 21:12:15,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 356 states and 495 transitions. [2019-11-28 21:12:15,540 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 178 [2019-11-28 21:12:15,551 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 356 states to 356 states and 495 transitions. [2019-11-28 21:12:15,551 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 356 [2019-11-28 21:12:15,554 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 356 [2019-11-28 21:12:15,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 356 states and 495 transitions. [2019-11-28 21:12:15,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:12:15,561 INFO L688 BuchiCegarLoop]: Abstraction has 356 states and 495 transitions. [2019-11-28 21:12:15,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states and 495 transitions. [2019-11-28 21:12:15,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 255. [2019-11-28 21:12:15,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2019-11-28 21:12:15,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 349 transitions. [2019-11-28 21:12:15,592 INFO L711 BuchiCegarLoop]: Abstraction has 255 states and 349 transitions. [2019-11-28 21:12:15,592 INFO L591 BuchiCegarLoop]: Abstraction has 255 states and 349 transitions. [2019-11-28 21:12:15,592 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:12:15,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 255 states and 349 transitions. [2019-11-28 21:12:15,595 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 178 [2019-11-28 21:12:15,595 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:15,595 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:15,596 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:15,596 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:15,596 INFO L794 eck$LassoCheckResult]: Stem: 794#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(13);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string5.base, #t~string5.offset, 1);call write~init~int(110, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 2 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(102, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(102, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 3 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string9.base, #t~string9.offset, 1);call write~init~int(80, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(117, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(109, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(112, #t~string9.base, 4 + #t~string9.offset, 1);call write~init~int(58, #t~string9.base, 5 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 6 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string15.base, #t~string15.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 760#L-1 havoc main_#res;havoc main_#t~ret22, main_~retValue_acc~2, main_~tmp~2;havoc main_~retValue_acc~2;havoc main_~tmp~2; 761#L406 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 785#L414 main_#t~ret22 := valid_product_#res;main_~tmp~2 := main_#t~ret22;havoc main_#t~ret22; 793#L370 assume 0 != main_~tmp~2; 795#L342 ~switchedOnBeforeTS~0 := 0; 754#L427 havoc test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 755#L448-1 [2019-11-28 21:12:15,597 INFO L796 eck$LassoCheckResult]: Loop: 755#L448-1 assume !false; 893#L225 assume test_~splverifierCounter~0 < 4; 892#L226 test_~tmp~1 := test_#t~nondet18;havoc test_#t~nondet18; 890#L234 assume !(0 != test_~tmp~1); 889#L234-1 test_~tmp___0~0 := test_#t~nondet19;havoc test_#t~nondet19; 888#L244 assume !(0 != test_~tmp___0~0); 886#L244-1 test_~tmp___2~0 := test_#t~nondet20;havoc test_#t~nondet20; 885#L254 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 878#L262-1 havoc __utac_acc__Specification5_spec__2_#t~ret24;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; 910#L147 __utac_acc__Specification5_spec__2_#t~ret24 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret24;havoc __utac_acc__Specification5_spec__2_#t~ret24; 909#L437 assume !(0 != ~pumpRunning~0); 907#L62 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret0, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 903#L94 assume !(0 != ~pumpRunning~0); 900#L69 havoc __utac_acc__Specification5_spec__3_#t~ret25, __utac_acc__Specification5_spec__3_#t~ret26, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 899#L920 __utac_acc__Specification5_spec__3_#t~ret25 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret25;havoc __utac_acc__Specification5_spec__3_#t~ret25; 898#L448 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;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; 897#L147-1 __utac_acc__Specification5_spec__3_#t~ret26 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~1 := __utac_acc__Specification5_spec__3_#t~ret26;havoc __utac_acc__Specification5_spec__3_#t~ret26; 895#L452 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1); 755#L448-1 [2019-11-28 21:12:15,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:15,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 21:12:15,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:15,598 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316014281] [2019-11-28 21:12:15,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:15,671 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:15,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:15,672 INFO L82 PathProgramCache]: Analyzing trace with hash -801866082, now seen corresponding path program 1 times [2019-11-28 21:12:15,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:15,673 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131282216] [2019-11-28 21:12:15,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:15,689 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:15,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:15,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1243110812, now seen corresponding path program 1 times [2019-11-28 21:12:15,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:15,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349523383] [2019-11-28 21:12:15,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:15,779 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:15,897 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-11-28 21:12:45,916 WARN L192 SmtUtils]: Spent 29.95 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:12:59,782 WARN L192 SmtUtils]: Spent 13.86 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:12:59,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:12:59 BoogieIcfgContainer [2019-11-28 21:12:59,852 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:12:59,852 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:12:59,852 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:12:59,853 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:12:59,853 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:12:14" (3/4) ... [2019-11-28 21:12:59,857 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:12:59,931 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:12:59,931 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:12:59,932 INFO L168 Benchmark]: Toolchain (without parser) took 47463.49 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 303.0 MB). Free memory was 957.7 MB in the beginning and 1.2 GB in the end (delta: -201.8 MB). Peak memory consumption was 101.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:12:59,932 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:12:59,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:12:59,934 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 21:12:59,934 INFO L168 Benchmark]: Boogie Preprocessor took 39.36 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. [2019-11-28 21:12:59,935 INFO L168 Benchmark]: RCFGBuilder took 839.21 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: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. [2019-11-28 21:12:59,936 INFO L168 Benchmark]: BuchiAutomizer took 45786.00 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 164.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -113.2 MB). Peak memory consumption was 372.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:12:59,936 INFO L168 Benchmark]: Witness Printer took 78.68 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: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:12:59,939 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 633.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 82.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.36 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 839.21 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: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 45786.00 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 164.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -113.2 MB). Peak memory consumption was 372.6 MB. Max. memory is 11.5 GB. * Witness Printer took 78.68 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: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 255 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 45.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 45.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 103 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 255 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 259 SDtfs, 404 SDslu, 387 SDs, 0 SdLazy, 77 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 224]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2194} State at position 1 is {NULL=15454, NULL=0, NULL=0, NULL=15456, NULL=0, NULL=0, retValue_acc=0, NULL=2194, NULL=15442, NULL=2195, NULL=0, NULL=2196, NULL=15457, NULL=18888, NULL=15453, methaneLevelCritical=0, tmp=1, NULL=0, NULL=0, NULL=0, tmp___1=0, cleanupTimeShifts=4, tmp=0, switchedOnBeforeTS=0, NULL=8478, NULL=15447, \result=0, NULL=9674, NULL=0, systemActive=1, waterLevel=1, NULL=15450, \result=1, NULL=18887, NULL=0, NULL=8480, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@162e083c=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34a95e74=0, head=0, pumpRunning=0, NULL=15449, NULL=15452, \result=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c36b373=0, tmp=1, NULL=0, NULL=0, NULL=15446, retValue_acc=1, NULL=15445, NULL=0, retValue_acc=1, NULL=15444, tmp___2=52, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fa6b94=0, NULL=8479, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69309f25=0, tmp=0, NULL=15451, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22354437=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76ff649b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78dff71e=0, head=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73841a9d=52, NULL=15443, NULL=0, NULL=0, NULL=15448, NULL=2197, NULL=0, NULL=15455} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int pumpRunning = 0; [L51] int systemActive = 1; [L283] int cleanupTimeShifts = 4; [L421] int switchedOnBeforeTS ; [L639] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L845] int waterLevel = 1; [L846] int methaneLevelCritical = 0; [L361] int retValue_acc ; [L362] int tmp ; [L410] int retValue_acc ; [L413] retValue_acc = 1 [L414] return (retValue_acc); [L368] tmp = valid_product() [L370] COND TRUE \read(tmp) [L426] switchedOnBeforeTS = 0 [L215] int splverifierCounter ; [L216] int tmp ; [L217] int tmp___0 ; [L218] int tmp___1 ; [L219] int tmp___2 ; [L222] splverifierCounter = 0 Loop: [L224] COND TRUE 1 [L226] COND TRUE splverifierCounter < 4 [L232] tmp = __VERIFIER_nondet_int() [L234] COND FALSE !(\read(tmp)) [L242] tmp___0 = __VERIFIER_nondet_int() [L244] COND FALSE !(\read(tmp___0)) [L252] tmp___2 = __VERIFIER_nondet_int() [L254] COND TRUE \read(tmp___2) [L206] systemActive = 1 [L143] int retValue_acc ; [L146] retValue_acc = pumpRunning [L147] return (retValue_acc); [L435] switchedOnBeforeTS = isPumpRunning() [L62] COND FALSE !(\read(pumpRunning)) [L69] COND TRUE \read(systemActive) [L91] int tmp ; [L94] COND FALSE !(\read(pumpRunning)) [L441] int tmp ; [L442] int tmp___0 ; [L916] int retValue_acc ; [L919] retValue_acc = waterLevel [L920] return (retValue_acc); [L446] tmp = getWaterLevel() [L448] COND TRUE tmp != 2 [L143] int retValue_acc ; [L146] retValue_acc = pumpRunning [L147] return (retValue_acc); [L450] tmp___0 = isPumpRunning() [L452] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...