./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 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_product39.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 e803bbedaeee18bc8aba1072b7c7abad6be5dde7 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:30:26,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:30:26,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:30:26,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:30:26,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:30:26,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:30:26,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:30:26,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:30:26,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:30:26,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:30:26,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:30:26,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:30:26,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:30:26,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:30:26,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:30:26,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:30:26,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:30:26,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:30:26,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:30:26,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:30:26,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:30:26,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:30:26,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:30:26,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:30:26,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:30:26,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:30:26,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:30:26,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:30:26,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:30:26,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:30:26,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:30:26,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:30:26,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:30:26,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:30:26,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:30:26,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:30:26,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:30:26,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:30:26,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:30:26,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:30:26,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:30:26,146 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 22:30:26,163 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:30:26,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:30:26,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:30:26,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:30:26,165 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:30:26,166 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 22:30:26,166 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 22:30:26,166 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 22:30:26,166 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 22:30:26,167 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 22:30:26,167 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 22:30:26,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:30:26,167 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:30:26,167 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:30:26,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:30:26,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:30:26,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:30:26,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 22:30:26,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 22:30:26,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 22:30:26,169 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:30:26,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:30:26,169 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 22:30:26,170 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:30:26,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 22:30:26,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:30:26,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:30:26,171 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 22:30:26,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:30:26,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:30:26,171 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 22:30:26,172 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 22:30:26,173 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 -> e803bbedaeee18bc8aba1072b7c7abad6be5dde7 [2019-11-19 22:30:26,560 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:30:26,579 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:30:26,585 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:30:26,587 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:30:26,587 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:30:26,588 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c [2019-11-19 22:30:26,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3373187f/cb8ff2bfe5f44555a8f0566b84320ed1/FLAG363e2c02d [2019-11-19 22:30:27,132 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:30:27,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c [2019-11-19 22:30:27,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3373187f/cb8ff2bfe5f44555a8f0566b84320ed1/FLAG363e2c02d [2019-11-19 22:30:27,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3373187f/cb8ff2bfe5f44555a8f0566b84320ed1 [2019-11-19 22:30:27,503 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:30:27,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:30:27,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:30:27,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:30:27,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:30:27,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:30:27" (1/1) ... [2019-11-19 22:30:27,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41c48e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:27, skipping insertion in model container [2019-11-19 22:30:27,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:30:27" (1/1) ... [2019-11-19 22:30:27,521 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:30:27,561 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:30:28,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:30:28,105 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:30:28,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:30:28,212 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:30:28,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:28 WrapperNode [2019-11-19 22:30:28,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:30:28,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:30:28,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:30:28,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:30:28,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:28" (1/1) ... [2019-11-19 22:30:28,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:28" (1/1) ... [2019-11-19 22:30:28,294 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:30:28,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:30:28,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:30:28,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:30:28,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:28" (1/1) ... [2019-11-19 22:30:28,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:28" (1/1) ... [2019-11-19 22:30:28,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:28" (1/1) ... [2019-11-19 22:30:28,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:28" (1/1) ... [2019-11-19 22:30:28,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:28" (1/1) ... [2019-11-19 22:30:28,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:28" (1/1) ... [2019-11-19 22:30:28,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:28" (1/1) ... [2019-11-19 22:30:28,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:30:28,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:30:28,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:30:28,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:30:28,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:28" (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 [2019-11-19 22:30:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:30:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 22:30:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:30:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:30:29,288 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:30:29,289 INFO L285 CfgBuilder]: Removed 174 assume(true) statements. [2019-11-19 22:30:29,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:30:29 BoogieIcfgContainer [2019-11-19 22:30:29,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:30:29,291 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 22:30:29,292 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 22:30:29,296 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 22:30:29,297 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:30:29,297 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 10:30:27" (1/3) ... [2019-11-19 22:30:29,299 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4310e099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:30:29, skipping insertion in model container [2019-11-19 22:30:29,299 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:30:29,299 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:28" (2/3) ... [2019-11-19 22:30:29,300 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4310e099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:30:29, skipping insertion in model container [2019-11-19 22:30:29,300 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:30:29,300 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:30:29" (3/3) ... [2019-11-19 22:30:29,302 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product39.cil.c [2019-11-19 22:30:29,351 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 22:30:29,352 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 22:30:29,352 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 22:30:29,352 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:30:29,353 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:30:29,353 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 22:30:29,353 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:30:29,353 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 22:30:29,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states. [2019-11-19 22:30:29,414 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2019-11-19 22:30:29,415 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:30:29,415 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:30:29,426 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:29,426 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:29,426 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 22:30:29,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states. [2019-11-19 22:30:29,445 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2019-11-19 22:30:29,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:30:29,445 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:30:29,447 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:29,447 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:29,459 INFO L794 eck$LassoCheckResult]: Stem: 77#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 8#L-1true havoc main_#res;havoc main_#t~ret21, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 97#L74true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 92#L82true main_#t~ret21 := valid_product_#res;main_~tmp~3 := main_#t~ret21;havoc main_#t~ret21; 99#L382true assume 0 != main_~tmp~3; 30#L356true ~switchedOnBeforeTS~0 := 0; 113#L470true havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 37#L491-1true [2019-11-19 22:30:29,463 INFO L796 eck$LassoCheckResult]: Loop: 37#L491-1true assume !false; 90#L407true assume test_~splverifierCounter~0 < 4; 44#L408true test_~tmp~4 := test_#t~nondet22;havoc test_#t~nondet22; 57#L416true assume !(0 != test_~tmp~4); 58#L416-1true test_~tmp___0~1 := test_#t~nondet23;havoc test_#t~nondet23; 115#L426true assume !(0 != test_~tmp___0~1); 98#L426-1true test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 24#L436true assume 0 != test_~tmp___2~0; 4#L442-1true havoc __utac_acc__Specification5_spec__2_#t~ret26;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 71#L220true __utac_acc__Specification5_spec__2_#t~ret26 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret26;havoc __utac_acc__Specification5_spec__2_#t~ret26; 36#L480true assume !(0 != ~pumpRunning~0); 15#L109true assume !(0 != ~systemActive~0); 50#L116true havoc __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 17#L954true __utac_acc__Specification5_spec__3_#t~ret27 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret27;havoc __utac_acc__Specification5_spec__3_#t~ret27; 34#L491true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5); 37#L491-1true [2019-11-19 22:30:29,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:29,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-19 22:30:29,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:29,483 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27999415] [2019-11-19 22:30:29,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:29,883 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:29,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:29,884 INFO L82 PathProgramCache]: Analyzing trace with hash -240260331, now seen corresponding path program 1 times [2019-11-19 22:30:29,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:29,885 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166922305] [2019-11-19 22:30:29,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:29,904 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:29,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:29,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1693764879, now seen corresponding path program 1 times [2019-11-19 22:30:29,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:29,906 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063137233] [2019-11-19 22:30:29,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:30,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:30,086 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063137233] [2019-11-19 22:30:30,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:30:30,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 22:30:30,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541747008] [2019-11-19 22:30:30,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:30:30,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 22:30:30,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-19 22:30:30,229 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 6 states. [2019-11-19 22:30:30,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:30:30,500 INFO L93 Difference]: Finished difference Result 289 states and 412 transitions. [2019-11-19 22:30:30,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 22:30:30,505 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 289 states and 412 transitions. [2019-11-19 22:30:30,512 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 187 [2019-11-19 22:30:30,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 289 states to 268 states and 391 transitions. [2019-11-19 22:30:30,528 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 268 [2019-11-19 22:30:30,532 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 268 [2019-11-19 22:30:30,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 268 states and 391 transitions. [2019-11-19 22:30:30,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:30:30,541 INFO L688 BuchiCegarLoop]: Abstraction has 268 states and 391 transitions. [2019-11-19 22:30:30,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states and 391 transitions. [2019-11-19 22:30:30,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 161. [2019-11-19 22:30:30,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2019-11-19 22:30:30,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 233 transitions. [2019-11-19 22:30:30,625 INFO L711 BuchiCegarLoop]: Abstraction has 161 states and 233 transitions. [2019-11-19 22:30:30,625 INFO L591 BuchiCegarLoop]: Abstraction has 161 states and 233 transitions. [2019-11-19 22:30:30,626 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 22:30:30,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 161 states and 233 transitions. [2019-11-19 22:30:30,630 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 112 [2019-11-19 22:30:30,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:30:30,630 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:30:30,632 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:30,632 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:30,633 INFO L794 eck$LassoCheckResult]: Stem: 523#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 435#L-1 havoc main_#res;havoc main_#t~ret21, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 436#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 533#L82 main_#t~ret21 := valid_product_#res;main_~tmp~3 := main_#t~ret21;havoc main_#t~ret21; 534#L382 assume 0 != main_~tmp~3; 470#L356 ~switchedOnBeforeTS~0 := 0; 471#L470 havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 475#L491-1 [2019-11-19 22:30:30,633 INFO L796 eck$LassoCheckResult]: Loop: 475#L491-1 assume !false; 480#L407 assume test_~splverifierCounter~0 < 4; 487#L408 test_~tmp~4 := test_#t~nondet22;havoc test_#t~nondet22; 488#L416 assume !(0 != test_~tmp~4); 501#L416-1 test_~tmp___0~1 := test_#t~nondet23;havoc test_#t~nondet23; 502#L426 assume !(0 != test_~tmp___0~1); 490#L426-1 test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 463#L436 assume 0 != test_~tmp___2~0; 426#L442-1 havoc __utac_acc__Specification5_spec__2_#t~ret26;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 427#L220 __utac_acc__Specification5_spec__2_#t~ret26 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret26;havoc __utac_acc__Specification5_spec__2_#t~ret26; 479#L480 assume !(0 != ~pumpRunning~0); 447#L109 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 448#L167 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 497#L141-1 assume !(0 == ~pumpRunning~0); 494#L116 havoc __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 451#L954 __utac_acc__Specification5_spec__3_#t~ret27 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret27;havoc __utac_acc__Specification5_spec__3_#t~ret27; 452#L491 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5); 475#L491-1 [2019-11-19 22:30:30,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:30,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-19 22:30:30,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:30,634 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418839165] [2019-11-19 22:30:30,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:30,757 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:30,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:30,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1402231348, now seen corresponding path program 1 times [2019-11-19 22:30:30,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:30,759 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251080362] [2019-11-19 22:30:30,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:30,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:30,773 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251080362] [2019-11-19 22:30:30,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:30:30,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 22:30:30,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018900163] [2019-11-19 22:30:30,774 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 22:30:30,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:30:30,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:30:30,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:30:30,776 INFO L87 Difference]: Start difference. First operand 161 states and 233 transitions. cyclomatic complexity: 75 Second operand 3 states. [2019-11-19 22:30:30,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:30:30,885 INFO L93 Difference]: Finished difference Result 208 states and 284 transitions. [2019-11-19 22:30:30,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:30:30,886 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 208 states and 284 transitions. [2019-11-19 22:30:30,889 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2019-11-19 22:30:30,892 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 208 states to 208 states and 284 transitions. [2019-11-19 22:30:30,892 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 208 [2019-11-19 22:30:30,892 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 208 [2019-11-19 22:30:30,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 208 states and 284 transitions. [2019-11-19 22:30:30,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:30:30,894 INFO L688 BuchiCegarLoop]: Abstraction has 208 states and 284 transitions. [2019-11-19 22:30:30,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states and 284 transitions. [2019-11-19 22:30:30,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2019-11-19 22:30:30,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2019-11-19 22:30:30,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 284 transitions. [2019-11-19 22:30:30,905 INFO L711 BuchiCegarLoop]: Abstraction has 208 states and 284 transitions. [2019-11-19 22:30:30,905 INFO L591 BuchiCegarLoop]: Abstraction has 208 states and 284 transitions. [2019-11-19 22:30:30,905 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 22:30:30,905 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 208 states and 284 transitions. [2019-11-19 22:30:30,907 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2019-11-19 22:30:30,907 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:30:30,907 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:30:30,908 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:30,908 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:30,909 INFO L794 eck$LassoCheckResult]: Stem: 912#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 810#L-1 havoc main_#res;havoc main_#t~ret21, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 811#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 924#L82 main_#t~ret21 := valid_product_#res;main_~tmp~3 := main_#t~ret21;havoc main_#t~ret21; 925#L382 assume 0 != main_~tmp~3; 849#L356 ~switchedOnBeforeTS~0 := 0; 850#L470 havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 932#L491-1 [2019-11-19 22:30:30,909 INFO L796 eck$LassoCheckResult]: Loop: 932#L491-1 assume !false; 922#L407 assume test_~splverifierCounter~0 < 4; 868#L408 test_~tmp~4 := test_#t~nondet22;havoc test_#t~nondet22; 869#L416 assume !(0 != test_~tmp~4); 886#L416-1 test_~tmp___0~1 := test_#t~nondet23;havoc test_#t~nondet23; 887#L426 assume !(0 != test_~tmp___0~1); 871#L426-1 test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 841#L436 assume 0 != test_~tmp___2~0; 801#L442-1 havoc __utac_acc__Specification5_spec__2_#t~ret26;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 802#L220 __utac_acc__Specification5_spec__2_#t~ret26 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret26;havoc __utac_acc__Specification5_spec__2_#t~ret26; 905#L480 assume !(0 != ~pumpRunning~0); 823#L109 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 824#L167 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 881#L141-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret20, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 833#L962-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 834#L967-1 isHighWaterLevel_#t~ret20 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret20;havoc isHighWaterLevel_#t~ret20; 865#L269-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 926#L269-5 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 908#L275-1 processEnvironment__wrappee__highWaterSensor_#t~ret1 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret1; 909#L145-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 891#L116 havoc __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 988#L954 __utac_acc__Specification5_spec__3_#t~ret27 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret27;havoc __utac_acc__Specification5_spec__3_#t~ret27; 986#L491 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5); 932#L491-1 [2019-11-19 22:30:30,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:30,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-19 22:30:30,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:30,910 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764975078] [2019-11-19 22:30:30,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:30,997 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:30,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:30,998 INFO L82 PathProgramCache]: Analyzing trace with hash 2024417080, now seen corresponding path program 1 times [2019-11-19 22:30:30,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:30,998 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534477141] [2019-11-19 22:30:30,998 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:31,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:31,052 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534477141] [2019-11-19 22:30:31,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:30:31,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 22:30:31,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497216238] [2019-11-19 22:30:31,054 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 22:30:31,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:30:31,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 22:30:31,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:30:31,055 INFO L87 Difference]: Start difference. First operand 208 states and 284 transitions. cyclomatic complexity: 79 Second operand 5 states. [2019-11-19 22:30:31,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:30:31,327 INFO L93 Difference]: Finished difference Result 817 states and 1123 transitions. [2019-11-19 22:30:31,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-19 22:30:31,328 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 817 states and 1123 transitions. [2019-11-19 22:30:31,337 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 575 [2019-11-19 22:30:31,346 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 817 states to 817 states and 1123 transitions. [2019-11-19 22:30:31,346 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 817 [2019-11-19 22:30:31,348 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 817 [2019-11-19 22:30:31,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 817 states and 1123 transitions. [2019-11-19 22:30:31,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:30:31,352 INFO L688 BuchiCegarLoop]: Abstraction has 817 states and 1123 transitions. [2019-11-19 22:30:31,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states and 1123 transitions. [2019-11-19 22:30:31,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 406. [2019-11-19 22:30:31,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2019-11-19 22:30:31,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 546 transitions. [2019-11-19 22:30:31,372 INFO L711 BuchiCegarLoop]: Abstraction has 406 states and 546 transitions. [2019-11-19 22:30:31,372 INFO L591 BuchiCegarLoop]: Abstraction has 406 states and 546 transitions. [2019-11-19 22:30:31,373 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 22:30:31,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 406 states and 546 transitions. [2019-11-19 22:30:31,377 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 294 [2019-11-19 22:30:31,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:30:31,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:30:31,378 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:31,379 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:31,379 INFO L794 eck$LassoCheckResult]: Stem: 1972#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 1855#L-1 havoc main_#res;havoc main_#t~ret21, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 1856#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1986#L82 main_#t~ret21 := valid_product_#res;main_~tmp~3 := main_#t~ret21;havoc main_#t~ret21; 1987#L382 assume 0 != main_~tmp~3; 1901#L356 ~switchedOnBeforeTS~0 := 0; 1902#L470 havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1998#L491-1 [2019-11-19 22:30:31,379 INFO L796 eck$LassoCheckResult]: Loop: 1998#L491-1 assume !false; 2131#L407 assume test_~splverifierCounter~0 < 4; 2132#L408 test_~tmp~4 := test_#t~nondet22;havoc test_#t~nondet22; 2218#L416 assume !(0 != test_~tmp~4); 2215#L416-1 test_~tmp___0~1 := test_#t~nondet23;havoc test_#t~nondet23; 2214#L426 assume !(0 != test_~tmp___0~1); 2212#L426-1 test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 2211#L436 assume 0 != test_~tmp___2~0; 2210#L442-1 havoc __utac_acc__Specification5_spec__2_#t~ret26;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 2222#L220 __utac_acc__Specification5_spec__2_#t~ret26 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret26;havoc __utac_acc__Specification5_spec__2_#t~ret26; 2219#L480 assume !(0 != ~pumpRunning~0); 1871#L109 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1872#L167 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1938#L141-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret20, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1882#L962-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1883#L967-1 isHighWaterLevel_#t~ret20 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret20;havoc isHighWaterLevel_#t~ret20; 1918#L269-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1988#L269-5 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1968#L275-1 processEnvironment__wrappee__highWaterSensor_#t~ret1 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret1; 1969#L145-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1952#L116 havoc __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 2164#L954 __utac_acc__Specification5_spec__3_#t~ret27 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret27;havoc __utac_acc__Specification5_spec__3_#t~ret27; 2160#L491 assume 2 != __utac_acc__Specification5_spec__3_~tmp~5;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 2161#L220-1 __utac_acc__Specification5_spec__3_#t~ret28 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret28;havoc __utac_acc__Specification5_spec__3_#t~ret28; 2157#L495 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1998#L491-1 [2019-11-19 22:30:31,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:31,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-19 22:30:31,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:31,380 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825701696] [2019-11-19 22:30:31,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:31,474 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:31,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:31,475 INFO L82 PathProgramCache]: Analyzing trace with hash -155383309, now seen corresponding path program 1 times [2019-11-19 22:30:31,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:31,476 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401212920] [2019-11-19 22:30:31,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:31,491 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:31,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:31,492 INFO L82 PathProgramCache]: Analyzing trace with hash -218809491, now seen corresponding path program 1 times [2019-11-19 22:30:31,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:31,494 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124947970] [2019-11-19 22:30:31,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:31,612 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:31,795 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-11-19 22:30:31,906 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2019-11-19 22:31:00,778 WARN L191 SmtUtils]: Spent 28.86 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-19 22:31:15,401 WARN L191 SmtUtils]: Spent 14.62 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-19 22:31:15,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 10:31:15 BoogieIcfgContainer [2019-11-19 22:31:15,493 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 22:31:15,493 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:31:15,493 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:31:15,494 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:31:15,498 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:30:29" (3/4) ... [2019-11-19 22:31:15,502 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 22:31:15,588 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 22:31:15,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:31:15,590 INFO L168 Benchmark]: Toolchain (without parser) took 48085.72 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 318.2 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -126.5 MB). Peak memory consumption was 191.8 MB. Max. memory is 11.5 GB. [2019-11-19 22:31:15,590 INFO L168 Benchmark]: CDTParser took 0.26 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. [2019-11-19 22:31:15,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -159.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:31:15,591 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.52 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:31:15,592 INFO L168 Benchmark]: Boogie Preprocessor took 55.26 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. [2019-11-19 22:31:15,592 INFO L168 Benchmark]: RCFGBuilder took 940.95 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: 64.6 MB). Peak memory consumption was 64.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:31:15,593 INFO L168 Benchmark]: BuchiAutomizer took 46201.39 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 174.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -47.6 MB). Peak memory consumption was 380.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:31:15,593 INFO L168 Benchmark]: Witness Printer took 95.28 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:31:15,596 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 707.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -159.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 80.52 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.26 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 940.95 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: 64.6 MB). Peak memory consumption was 64.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 46201.39 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 174.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -47.6 MB). Peak memory consumption was 380.5 MB. Max. memory is 11.5 GB. * Witness Printer took 95.28 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 406 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 46.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 45.1s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 518 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 406 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 612 SDtfs, 1486 SDslu, 1606 SDs, 0 SdLazy, 210 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 406]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2220} State at position 1 is {NULL=2225, NULL=0, NULL=0, retValue_acc=1, NULL=2220, NULL=2235, retValue_acc=0, NULL=2243, NULL=0, NULL=0, NULL=2237, NULL=2230, methaneLevelCritical=0, tmp___0=0, retValue_acc=0, NULL=0, tmp=0, tmp=1, NULL=0, NULL=0, tmp___1=0, tmp=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=2233, \result=0, NULL=2226, NULL=0, systemActive=1, waterLevel=1, NULL=2242, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24e38ae8=0, NULL=2231, NULL=0, \result=0, NULL=2223, NULL=0, NULL=0, NULL=2228, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp___0=0, NULL=2238, NULL=2229, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11e8b7e0=0, NULL=2240, tmp=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bd16563=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11e16a4e=63, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9564c3=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cd359d5=0, \result=1, NULL=2224, NULL=2232, NULL=2244, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@469d6807=0, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a43ab06=0, NULL=2227, retValue_acc=1, tmp___2=63, retValue_acc=1, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=2245, NULL=2239, NULL=2222, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bc94628=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@157ba308=0, NULL=2221, NULL=0, NULL=0, NULL=2236, NULL=0, NULL=2241, NULL=2234, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@340c6f88=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L97] int pumpRunning = 0; [L98] int systemActive = 1; [L295] int cleanupTimeShifts = 4; [L464] int switchedOnBeforeTS ; [L682] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L879] int waterLevel = 1; [L880] int methaneLevelCritical = 0; [L373] int retValue_acc ; [L374] int tmp ; [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L380] tmp = valid_product() [L382] COND TRUE \read(tmp) [L469] switchedOnBeforeTS = 0 [L397] int splverifierCounter ; [L398] int tmp ; [L399] int tmp___0 ; [L400] int tmp___1 ; [L401] int tmp___2 ; [L404] splverifierCounter = 0 Loop: [L406] COND TRUE 1 [L408] COND TRUE splverifierCounter < 4 [L414] tmp = __VERIFIER_nondet_int() [L416] COND FALSE !(\read(tmp)) [L424] tmp___0 = __VERIFIER_nondet_int() [L426] COND FALSE !(\read(tmp___0)) [L434] tmp___2 = __VERIFIER_nondet_int() [L436] COND TRUE \read(tmp___2) [L216] int retValue_acc ; [L219] retValue_acc = pumpRunning [L220] return (retValue_acc); [L478] switchedOnBeforeTS = isPumpRunning() [L109] COND FALSE !(\read(pumpRunning)) [L116] COND TRUE \read(systemActive) [L164] int tmp ; [L167] COND FALSE !(\read(pumpRunning)) [L138] int tmp ; [L141] COND TRUE ! pumpRunning [L261] int retValue_acc ; [L262] int tmp ; [L263] int tmp___0 ; [L959] int retValue_acc ; [L962] COND TRUE waterLevel < 2 [L963] retValue_acc = 1 [L964] return (retValue_acc); [L267] tmp = isHighWaterSensorDry() [L269] COND TRUE \read(tmp) [L270] tmp___0 = 0 [L274] retValue_acc = tmp___0 [L275] return (retValue_acc); [L143] tmp = isHighWaterLevel() [L145] COND FALSE !(\read(tmp)) [L484] int tmp ; [L485] int tmp___0 ; [L950] int retValue_acc ; [L953] retValue_acc = waterLevel [L954] return (retValue_acc); [L489] tmp = getWaterLevel() [L491] COND TRUE tmp != 2 [L216] int retValue_acc ; [L219] retValue_acc = pumpRunning [L220] return (retValue_acc); [L493] tmp___0 = isPumpRunning() [L495] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...