./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product60.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_product60.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 f32a845991ccfb3a908c898acdfb7a48e8a7d63f ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:15:05,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:15:05,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:15:05,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:15:05,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:15:05,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:15:05,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:15:05,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:15:05,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:15:05,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:15:05,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:15:05,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:15:05,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:15:05,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:15:05,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:15:05,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:15:05,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:15:05,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:15:05,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:15:05,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:15:05,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:15:05,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:15:05,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:15:05,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:15:05,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:15:05,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:15:05,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:15:05,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:15:05,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:15:05,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:15:05,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:15:05,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:15:05,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:15:05,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:15:05,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:15:05,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:15:05,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:15:05,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:15:05,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:15:05,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:15:05,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:15:05,153 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:15:05,182 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:15:05,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:15:05,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:15:05,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:15:05,185 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:15:05,186 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:15:05,186 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:15:05,186 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:15:05,186 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:15:05,186 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:15:05,187 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:15:05,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:15:05,187 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:15:05,187 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:15:05,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:15:05,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:15:05,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:15:05,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:15:05,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:15:05,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:15:05,189 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:15:05,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:15:05,189 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:15:05,190 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:15:05,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:15:05,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:15:05,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:15:05,191 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:15:05,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:15:05,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:15:05,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:15:05,192 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:15:05,192 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:15:05,193 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 -> f32a845991ccfb3a908c898acdfb7a48e8a7d63f [2019-11-28 21:15:05,498 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:15:05,516 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:15:05,519 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:15:05,520 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:15:05,520 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:15:05,521 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c [2019-11-28 21:15:05,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a1e447e7/17d648aa4ab543a5898a335ec54b6c5c/FLAGcd46769a3 [2019-11-28 21:15:06,029 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:15:06,029 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c [2019-11-28 21:15:06,040 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a1e447e7/17d648aa4ab543a5898a335ec54b6c5c/FLAGcd46769a3 [2019-11-28 21:15:06,410 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a1e447e7/17d648aa4ab543a5898a335ec54b6c5c [2019-11-28 21:15:06,416 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:15:06,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:15:06,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:15:06,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:15:06,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:15:06,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:15:06" (1/1) ... [2019-11-28 21:15:06,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f2841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:15:06, skipping insertion in model container [2019-11-28 21:15:06,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:15:06" (1/1) ... [2019-11-28 21:15:06,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:15:06,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:15:06,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:15:07,001 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:15:07,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:15:07,124 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:15:07,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:15:07 WrapperNode [2019-11-28 21:15:07,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:15:07,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:15:07,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:15:07,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:15:07,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:15:07" (1/1) ... [2019-11-28 21:15:07,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:15:07" (1/1) ... [2019-11-28 21:15:07,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:15:07,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:15:07,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:15:07,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:15:07,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:15:07" (1/1) ... [2019-11-28 21:15:07,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:15:07" (1/1) ... [2019-11-28 21:15:07,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:15:07" (1/1) ... [2019-11-28 21:15:07,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:15:07" (1/1) ... [2019-11-28 21:15:07,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:15:07" (1/1) ... [2019-11-28 21:15:07,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:15:07" (1/1) ... [2019-11-28 21:15:07,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:15:07" (1/1) ... [2019-11-28 21:15:07,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:15:07,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:15:07,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:15:07,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:15:07,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:15:07" (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 21:15:07,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:15:07,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:15:07,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:15:07,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:15:08,285 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:15:08,285 INFO L287 CfgBuilder]: Removed 212 assume(true) statements. [2019-11-28 21:15:08,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:15:08 BoogieIcfgContainer [2019-11-28 21:15:08,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:15:08,288 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:15:08,288 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:15:08,294 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:15:08,295 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:15:08,295 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:15:06" (1/3) ... [2019-11-28 21:15:08,297 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8292e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:15:08, skipping insertion in model container [2019-11-28 21:15:08,297 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:15:08,297 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:15:07" (2/3) ... [2019-11-28 21:15:08,298 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8292e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:15:08, skipping insertion in model container [2019-11-28 21:15:08,298 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:15:08,298 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:15:08" (3/3) ... [2019-11-28 21:15:08,300 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product60.cil.c [2019-11-28 21:15:08,353 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:15:08,353 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:15:08,353 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:15:08,354 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:15:08,354 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:15:08,354 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:15:08,355 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:15:08,355 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:15:08,378 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 143 states. [2019-11-28 21:15:08,422 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2019-11-28 21:15:08,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:15:08,423 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:15:08,433 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:15:08,433 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:15:08,433 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:15:08,434 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 143 states. [2019-11-28 21:15:08,455 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2019-11-28 21:15:08,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:15:08,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:15:08,456 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:15:08,457 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:15:08,466 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);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);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 4#L-1true havoc main_#res;havoc main_#t~ret64, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 59#L906true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 67#L914true main_#t~ret64 := valid_product_#res;main_~tmp~10 := main_#t~ret64;havoc main_#t~ret64; 72#L870true assume 0 != main_~tmp~10; 40#L843true ~switchedOnBeforeTS~0 := 0; 37#L375true havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 111#L396-1true [2019-11-28 21:15:08,467 INFO L796 eck$LassoCheckResult]: Loop: 111#L396-1true assume !false; 42#L309true assume test_~splverifierCounter~0 < 4; 3#L310true test_~tmp~5 := test_#t~nondet22;havoc test_#t~nondet22; 5#L318true assume !(0 != test_~tmp~5); 6#L318-1true test_~tmp___0~2 := test_#t~nondet23;havoc test_#t~nondet23; 50#L328true assume !(0 != test_~tmp___0~2); 51#L328-1true test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 125#L338true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 134#L346-1true havoc __utac_acc__Specification5_spec__2_#t~ret26;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; 68#L193true __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; 108#L385true assume !(0 != ~pumpRunning~0); 49#L64true assume !(0 != ~systemActive~0); 106#L71true havoc __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 14#L1003true __utac_acc__Specification5_spec__3_#t~ret27 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret27;havoc __utac_acc__Specification5_spec__3_#t~ret27; 107#L396true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 111#L396-1true [2019-11-28 21:15:08,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:15:08,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:15:08,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:15:08,487 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31044087] [2019-11-28 21:15:08,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:15:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:15:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:15:08,882 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:15:08,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:15:08,884 INFO L82 PathProgramCache]: Analyzing trace with hash 677719542, now seen corresponding path program 1 times [2019-11-28 21:15:08,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:15:08,885 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427025612] [2019-11-28 21:15:08,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:15:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:15:08,945 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 21:15:08,946 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427025612] [2019-11-28 21:15:08,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:15:08,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:15:08,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702021896] [2019-11-28 21:15:08,953 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:15:08,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:15:08,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:15:08,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:15:08,968 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 3 states. [2019-11-28 21:15:09,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:15:09,057 INFO L93 Difference]: Finished difference Result 279 states and 401 transitions. [2019-11-28 21:15:09,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:15:09,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 279 states and 401 transitions. [2019-11-28 21:15:09,071 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 182 [2019-11-28 21:15:09,081 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 279 states to 265 states and 386 transitions. [2019-11-28 21:15:09,082 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 265 [2019-11-28 21:15:09,084 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 265 [2019-11-28 21:15:09,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 265 states and 386 transitions. [2019-11-28 21:15:09,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:15:09,088 INFO L688 BuchiCegarLoop]: Abstraction has 265 states and 386 transitions. [2019-11-28 21:15:09,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states and 386 transitions. [2019-11-28 21:15:09,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2019-11-28 21:15:09,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2019-11-28 21:15:09,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 383 transitions. [2019-11-28 21:15:09,136 INFO L711 BuchiCegarLoop]: Abstraction has 263 states and 383 transitions. [2019-11-28 21:15:09,136 INFO L591 BuchiCegarLoop]: Abstraction has 263 states and 383 transitions. [2019-11-28 21:15:09,136 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:15:09,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 263 states and 383 transitions. [2019-11-28 21:15:09,140 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 180 [2019-11-28 21:15:09,140 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:15:09,140 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:15:09,141 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:15:09,141 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:15:09,142 INFO L794 eck$LassoCheckResult]: Stem: 563#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);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);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 433#L-1 havoc main_#res;havoc main_#t~ret64, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 434#L906 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 530#L914 main_#t~ret64 := valid_product_#res;main_~tmp~10 := main_#t~ret64;havoc main_#t~ret64; 538#L870 assume 0 != main_~tmp~10; 504#L843 ~switchedOnBeforeTS~0 := 0; 499#L375 havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 500#L396-1 [2019-11-28 21:15:09,142 INFO L796 eck$LassoCheckResult]: Loop: 500#L396-1 assume !false; 506#L309 assume test_~splverifierCounter~0 < 4; 507#L310 test_~tmp~5 := test_#t~nondet22;havoc test_#t~nondet22; 612#L318 assume !(0 != test_~tmp~5); 610#L318-1 test_~tmp___0~2 := test_#t~nondet23;havoc test_#t~nondet23; 609#L328 assume !(0 != test_~tmp___0~2); 607#L328-1 test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 591#L338 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 593#L346-1 havoc __utac_acc__Specification5_spec__2_#t~ret26;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; 605#L193 __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; 577#L385 assume !(0 != ~pumpRunning~0); 480#L64 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 440#L122 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 441#L96-1 assume !(0 == ~pumpRunning~0); 575#L71 havoc __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 453#L1003 __utac_acc__Specification5_spec__3_#t~ret27 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret27;havoc __utac_acc__Specification5_spec__3_#t~ret27; 454#L396 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 500#L396-1 [2019-11-28 21:15:09,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:15:09,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:15:09,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:15:09,143 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677594550] [2019-11-28 21:15:09,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:15:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:15:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:15:09,328 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:15:09,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:15:09,329 INFO L82 PathProgramCache]: Analyzing trace with hash -532272225, now seen corresponding path program 1 times [2019-11-28 21:15:09,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:15:09,330 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084486176] [2019-11-28 21:15:09,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:15:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:15:09,352 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 21:15:09,353 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084486176] [2019-11-28 21:15:09,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:15:09,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:15:09,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953673956] [2019-11-28 21:15:09,354 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:15:09,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:15:09,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:15:09,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:15:09,356 INFO L87 Difference]: Start difference. First operand 263 states and 383 transitions. cyclomatic complexity: 123 Second operand 3 states. [2019-11-28 21:15:09,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:15:09,485 INFO L93 Difference]: Finished difference Result 362 states and 505 transitions. [2019-11-28 21:15:09,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:15:09,486 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 362 states and 505 transitions. [2019-11-28 21:15:09,491 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2019-11-28 21:15:09,496 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 362 states to 362 states and 505 transitions. [2019-11-28 21:15:09,496 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 362 [2019-11-28 21:15:09,498 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 362 [2019-11-28 21:15:09,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 362 states and 505 transitions. [2019-11-28 21:15:09,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:15:09,501 INFO L688 BuchiCegarLoop]: Abstraction has 362 states and 505 transitions. [2019-11-28 21:15:09,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states and 505 transitions. [2019-11-28 21:15:09,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2019-11-28 21:15:09,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2019-11-28 21:15:09,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 505 transitions. [2019-11-28 21:15:09,520 INFO L711 BuchiCegarLoop]: Abstraction has 362 states and 505 transitions. [2019-11-28 21:15:09,521 INFO L591 BuchiCegarLoop]: Abstraction has 362 states and 505 transitions. [2019-11-28 21:15:09,521 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:15:09,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 362 states and 505 transitions. [2019-11-28 21:15:09,524 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2019-11-28 21:15:09,525 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:15:09,525 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:15:09,526 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:15:09,526 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] [2019-11-28 21:15:09,527 INFO L794 eck$LassoCheckResult]: Stem: 1190#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);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);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1064#L-1 havoc main_#res;havoc main_#t~ret64, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 1065#L906 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 1158#L914 main_#t~ret64 := valid_product_#res;main_~tmp~10 := main_#t~ret64;havoc main_#t~ret64; 1164#L870 assume 0 != main_~tmp~10; 1131#L843 ~switchedOnBeforeTS~0 := 0; 1129#L375 havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1116#L396-1 [2019-11-28 21:15:09,527 INFO L796 eck$LassoCheckResult]: Loop: 1116#L396-1 assume !false; 1299#L309 assume test_~splverifierCounter~0 < 4; 1298#L310 test_~tmp~5 := test_#t~nondet22;havoc test_#t~nondet22; 1066#L318 assume !(0 != test_~tmp~5); 1068#L318-1 test_~tmp___0~2 := test_#t~nondet23;havoc test_#t~nondet23; 1069#L328 assume !(0 != test_~tmp___0~2); 1145#L328-1 test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 1146#L338 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1214#L346-1 havoc __utac_acc__Specification5_spec__2_#t~ret26;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; 1165#L193 __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; 1166#L385 assume !(0 != ~pumpRunning~0); 1142#L64 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1143#L122 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1288#L96-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret20, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1418#L1011-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1417#L1016-1 isHighWaterLevel_#t~ret20 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret20;havoc isHighWaterLevel_#t~ret20; 1416#L242-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 1415#L242-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1308#L248-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 1305#L100-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1202#L71 havoc __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 1304#L1003 __utac_acc__Specification5_spec__3_#t~ret27 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret27;havoc __utac_acc__Specification5_spec__3_#t~ret27; 1200#L396 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 1116#L396-1 [2019-11-28 21:15:09,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:15:09,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 21:15:09,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:15:09,529 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127523445] [2019-11-28 21:15:09,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:15:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:15:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:15:09,615 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:15:09,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:15:09,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1637117461, now seen corresponding path program 1 times [2019-11-28 21:15:09,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:15:09,617 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890476731] [2019-11-28 21:15:09,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:15:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:15:09,666 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 21:15:09,667 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890476731] [2019-11-28 21:15:09,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:15:09,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 21:15:09,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599296165] [2019-11-28 21:15:09,668 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:15:09,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:15:09,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:15:09,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:15:09,670 INFO L87 Difference]: Start difference. First operand 362 states and 505 transitions. cyclomatic complexity: 146 Second operand 5 states. [2019-11-28 21:15:09,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:15:09,949 INFO L93 Difference]: Finished difference Result 1022 states and 1397 transitions. [2019-11-28 21:15:09,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 21:15:09,950 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1022 states and 1397 transitions. [2019-11-28 21:15:09,962 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 671 [2019-11-28 21:15:09,973 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1022 states to 1022 states and 1397 transitions. [2019-11-28 21:15:09,973 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1022 [2019-11-28 21:15:09,975 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1022 [2019-11-28 21:15:09,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1022 states and 1397 transitions. [2019-11-28 21:15:09,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:15:09,981 INFO L688 BuchiCegarLoop]: Abstraction has 1022 states and 1397 transitions. [2019-11-28 21:15:09,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states and 1397 transitions. [2019-11-28 21:15:10,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 717. [2019-11-28 21:15:10,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2019-11-28 21:15:10,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 975 transitions. [2019-11-28 21:15:10,022 INFO L711 BuchiCegarLoop]: Abstraction has 717 states and 975 transitions. [2019-11-28 21:15:10,022 INFO L591 BuchiCegarLoop]: Abstraction has 717 states and 975 transitions. [2019-11-28 21:15:10,022 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 21:15:10,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 717 states and 975 transitions. [2019-11-28 21:15:10,028 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 510 [2019-11-28 21:15:10,028 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:15:10,028 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:15:10,031 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:15:10,032 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] [2019-11-28 21:15:10,032 INFO L794 eck$LassoCheckResult]: Stem: 2594#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;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);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);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2464#L-1 havoc main_#res;havoc main_#t~ret64, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 2465#L906 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 2562#L914 main_#t~ret64 := valid_product_#res;main_~tmp~10 := main_#t~ret64;havoc main_#t~ret64; 2572#L870 assume 0 != main_~tmp~10; 2534#L843 ~switchedOnBeforeTS~0 := 0; 2530#L375 havoc test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2531#L396-1 [2019-11-28 21:15:10,033 INFO L796 eck$LassoCheckResult]: Loop: 2531#L396-1 assume !false; 2880#L309 assume test_~splverifierCounter~0 < 4; 2879#L310 test_~tmp~5 := test_#t~nondet22;havoc test_#t~nondet22; 2878#L318 assume !(0 != test_~tmp~5); 2468#L318-1 test_~tmp___0~2 := test_#t~nondet23;havoc test_#t~nondet23; 2469#L328 assume !(0 != test_~tmp___0~2); 2550#L328-1 test_~tmp___2~0 := test_#t~nondet24;havoc test_#t~nondet24; 2551#L338 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2626#L346-1 havoc __utac_acc__Specification5_spec__2_#t~ret26;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; 2634#L193 __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; 2607#L385 assume !(0 != ~pumpRunning~0); 2548#L64 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 2472#L122 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 2473#L96-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret20, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 2504#L1011-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 2505#L1016-1 isHighWaterLevel_#t~ret20 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret20;havoc isHighWaterLevel_#t~ret20; 2555#L242-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 2577#L242-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 2573#L248-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 2517#L100-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 2518#L71 havoc __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 2484#L1003 __utac_acc__Specification5_spec__3_#t~ret27 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret27;havoc __utac_acc__Specification5_spec__3_#t~ret27; 2485#L396 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6;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; 2606#L193-1 __utac_acc__Specification5_spec__3_#t~ret28 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret28;havoc __utac_acc__Specification5_spec__3_#t~ret28; 2888#L400 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 2531#L396-1 [2019-11-28 21:15:10,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:15:10,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-28 21:15:10,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:15:10,035 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505948604] [2019-11-28 21:15:10,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:15:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:15:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:15:10,156 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:15:10,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:15:10,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1311860826, now seen corresponding path program 1 times [2019-11-28 21:15:10,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:15:10,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66312946] [2019-11-28 21:15:10,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:15:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:15:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:15:10,178 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:15:10,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:15:10,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1375287008, now seen corresponding path program 1 times [2019-11-28 21:15:10,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:15:10,180 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623816276] [2019-11-28 21:15:10,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:15:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:15:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:15:10,277 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:15:10,458 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-11-28 21:15:33,603 WARN L192 SmtUtils]: Spent 23.05 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:15:47,227 WARN L192 SmtUtils]: Spent 13.61 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:15:47,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:15:47 BoogieIcfgContainer [2019-11-28 21:15:47,299 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:15:47,300 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:15:47,300 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:15:47,300 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:15:47,301 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:15:08" (3/4) ... [2019-11-28 21:15:47,304 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:15:47,368 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:15:47,368 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:15:47,370 INFO L168 Benchmark]: Toolchain (without parser) took 40952.15 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 318.8 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -154.3 MB). Peak memory consumption was 164.5 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:47,371 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:15:47,371 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:47,372 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.21 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 21:15:47,373 INFO L168 Benchmark]: Boogie Preprocessor took 48.84 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. [2019-11-28 21:15:47,373 INFO L168 Benchmark]: RCFGBuilder took 1011.58 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: 70.0 MB). Peak memory consumption was 70.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:47,374 INFO L168 Benchmark]: BuchiAutomizer took 39011.64 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 181.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -74.1 MB). Peak memory consumption was 380.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:15:47,375 INFO L168 Benchmark]: Witness Printer took 68.76 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: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2019-11-28 21:15:47,378 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 705.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 100.21 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. * Boogie Preprocessor took 48.84 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. * RCFGBuilder took 1011.58 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: 70.0 MB). Peak memory consumption was 70.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 39011.64 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 181.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -74.1 MB). Peak memory consumption was 380.7 MB. Max. memory is 11.5 GB. * Witness Printer took 68.76 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: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 717 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 38.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 38.0s. 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, 307 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 717 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 679 SDtfs, 1007 SDslu, 911 SDs, 0 SdLazy, 145 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 308]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1443} State at position 1 is {retValue_acc=1, NULL=1453, NULL=0, NULL=0, NULL=1443, NULL=1445, NULL=1447, NULL=0, NULL=0, retValue_acc=0, NULL=1456, NULL=1464, methaneLevelCritical=0, tmp=1, tmp___0=0, NULL=0, tmp=0, retValue_acc=0, NULL=0, tmp___1=0, tmp=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=1455, tmp=1, \result=0, NULL=1457, NULL=0, systemActive=1, waterLevel=1, NULL=1461, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a829995=0, NULL=1465, NULL=0, \result=0, NULL=1444, NULL=0, NULL=0, NULL=1458, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8793419=0, NULL=1454, NULL=1462, \result=0, NULL=1463, tmp___0=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@469f11e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a71fe16=55, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@168f7be7=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@111c12f2=0, \result=1, NULL=1452, NULL=1467, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7976b10f=0, NULL=1459, NULL=0, tmp=1, NULL=1448, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@275c9453=0, NULL=1449, retValue_acc=1, tmp___2=55, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=1450, NULL=1451, NULL=1468, tmp=0, head=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77012dd3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b168dea=0, NULL=1446, NULL=0, NULL=0, NULL=1460, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@731120a4=0, NULL=1466} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L52] int pumpRunning = 0; [L53] int systemActive = 1; [L369] int switchedOnBeforeTS ; [L587] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L784] int cleanupTimeShifts = 4; [L928] int waterLevel = 1; [L929] int methaneLevelCritical = 0; [L861] int retValue_acc ; [L862] int tmp ; [L910] int retValue_acc ; [L913] retValue_acc = 1 [L914] return (retValue_acc); [L868] tmp = valid_product() [L870] COND TRUE \read(tmp) [L374] switchedOnBeforeTS = 0 [L299] int splverifierCounter ; [L300] int tmp ; [L301] int tmp___0 ; [L302] int tmp___1 ; [L303] int tmp___2 ; [L306] splverifierCounter = 0 Loop: [L308] COND TRUE 1 [L310] COND TRUE splverifierCounter < 4 [L316] tmp = __VERIFIER_nondet_int() [L318] COND FALSE !(\read(tmp)) [L326] tmp___0 = __VERIFIER_nondet_int() [L328] COND FALSE !(\read(tmp___0)) [L336] tmp___2 = __VERIFIER_nondet_int() [L338] COND TRUE \read(tmp___2) [L290] systemActive = 1 [L189] int retValue_acc ; [L192] retValue_acc = pumpRunning [L193] return (retValue_acc); [L383] switchedOnBeforeTS = isPumpRunning() [L64] COND FALSE !(\read(pumpRunning)) [L71] COND TRUE \read(systemActive) [L119] int tmp ; [L122] COND FALSE !(\read(pumpRunning)) [L93] int tmp ; [L96] COND TRUE ! pumpRunning [L234] int retValue_acc ; [L235] int tmp ; [L236] int tmp___0 ; [L1008] int retValue_acc ; [L1011] COND TRUE waterLevel < 2 [L1012] retValue_acc = 1 [L1013] return (retValue_acc); [L240] tmp = isHighWaterSensorDry() [L242] COND TRUE \read(tmp) [L243] tmp___0 = 0 [L247] retValue_acc = tmp___0 [L248] return (retValue_acc); [L98] tmp = isHighWaterLevel() [L100] COND FALSE !(\read(tmp)) [L389] int tmp ; [L390] int tmp___0 ; [L999] int retValue_acc ; [L1002] retValue_acc = waterLevel [L1003] return (retValue_acc); [L394] tmp = getWaterLevel() [L396] COND TRUE tmp != 2 [L189] int retValue_acc ; [L192] retValue_acc = pumpRunning [L193] return (retValue_acc); [L398] tmp___0 = isPumpRunning() [L400] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...