./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product22.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_product22.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 9f020a8b33a45c119887964f9008d96e4dba4f1a ................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:13:01,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:13:01,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:13:01,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:13:01,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:13:01,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:13:01,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:13:01,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:13:01,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:13:01,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:13:01,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:13:01,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:13:01,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:13:01,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:13:01,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:13:01,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:13:01,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:13:01,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:13:01,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:13:01,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:13:01,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:13:01,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:13:01,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:13:01,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:13:01,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:13:01,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:13:01,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:13:01,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:13:01,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:13:01,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:13:01,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:13:01,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:13:01,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:13:01,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:13:01,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:13:01,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:13:01,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:13:01,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:13:01,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:13:01,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:13:01,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:13:01,136 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:13:01,171 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:13:01,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:13:01,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:13:01,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:13:01,178 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:13:01,178 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:13:01,178 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:13:01,179 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:13:01,179 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:13:01,179 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:13:01,179 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:13:01,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:13:01,181 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:13:01,181 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:13:01,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:13:01,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:13:01,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:13:01,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:13:01,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:13:01,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:13:01,183 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:13:01,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:13:01,184 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:13:01,184 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:13:01,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:13:01,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:13:01,185 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:13:01,185 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:13:01,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:13:01,186 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:13:01,187 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:13:01,187 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:13:01,189 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:13:01,190 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 -> 9f020a8b33a45c119887964f9008d96e4dba4f1a [2019-11-28 21:13:01,492 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:13:01,507 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:13:01,512 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:13:01,514 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:13:01,515 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:13:01,515 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c [2019-11-28 21:13:01,575 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1bb9033a/262a22776db94fabaa2d2ed646fd76b4/FLAGe73c5637b [2019-11-28 21:13:02,083 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:13:02,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c [2019-11-28 21:13:02,098 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1bb9033a/262a22776db94fabaa2d2ed646fd76b4/FLAGe73c5637b [2019-11-28 21:13:02,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1bb9033a/262a22776db94fabaa2d2ed646fd76b4 [2019-11-28 21:13:02,414 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:13:02,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:13:02,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:13:02,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:13:02,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:13:02,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:13:02" (1/1) ... [2019-11-28 21:13:02,424 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 09:13:02, skipping insertion in model container [2019-11-28 21:13:02,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:13:02" (1/1) ... [2019-11-28 21:13:02,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:13:02,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:13:02,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:13:02,937 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:13:03,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:13:03,101 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:13:03,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:03 WrapperNode [2019-11-28 21:13:03,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:13:03,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:13:03,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:13:03,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:13:03,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:03" (1/1) ... [2019-11-28 21:13:03,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:03" (1/1) ... [2019-11-28 21:13:03,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:13:03,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:13:03,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:13:03,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:13:03,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:03" (1/1) ... [2019-11-28 21:13:03,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:03" (1/1) ... [2019-11-28 21:13:03,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:03" (1/1) ... [2019-11-28 21:13:03,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:03" (1/1) ... [2019-11-28 21:13:03,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:03" (1/1) ... [2019-11-28 21:13:03,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:03" (1/1) ... [2019-11-28 21:13:03,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:03" (1/1) ... [2019-11-28 21:13:03,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:13:03,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:13:03,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:13:03,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:13:03,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:03" (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 21:13:03,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:13:03,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:13:03,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:13:03,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:13:04,153 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:13:04,154 INFO L287 CfgBuilder]: Removed 172 assume(true) statements. [2019-11-28 21:13:04,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:13:04 BoogieIcfgContainer [2019-11-28 21:13:04,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:13:04,156 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:13:04,156 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:13:04,160 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:13:04,161 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:13:04,162 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:13:02" (1/3) ... [2019-11-28 21:13:04,163 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1759567b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:13:04, skipping insertion in model container [2019-11-28 21:13:04,163 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:13:04,163 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:03" (2/3) ... [2019-11-28 21:13:04,164 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1759567b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:13:04, skipping insertion in model container [2019-11-28 21:13:04,164 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:13:04,164 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:13:04" (3/3) ... [2019-11-28 21:13:04,166 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product22.cil.c [2019-11-28 21:13:04,218 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:13:04,218 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:13:04,218 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:13:04,218 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:13:04,220 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:13:04,220 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:13:04,220 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:13:04,221 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:13:04,250 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2019-11-28 21:13:04,294 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-28 21:13:04,295 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:13:04,295 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:13:04,305 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:04,305 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:04,305 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:13:04,305 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2019-11-28 21:13:04,321 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-28 21:13:04,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:13:04,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:13:04,324 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:04,325 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:04,332 INFO L794 eck$LassoCheckResult]: Stem: 70#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~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);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 7#L-1true havoc main_#res;havoc main_#t~ret28, main_~retValue_acc~5, main_~tmp~5;havoc main_~retValue_acc~5;havoc main_~tmp~5; 11#L65true 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; 6#L73true main_#t~ret28 := valid_product_#res;main_~tmp~5 := main_#t~ret28;havoc main_#t~ret28; 15#L483true assume 0 != main_~tmp~5; 102#L459true ~switchedOnBeforeTS~0 := 0; 49#L287true havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 71#L308-1true [2019-11-28 21:13:04,333 INFO L796 eck$LassoCheckResult]: Loop: 71#L308-1true assume !false; 63#L344true assume test_~splverifierCounter~0 < 4; 36#L345true test_~tmp~4 := test_#t~nondet24;havoc test_#t~nondet24; 47#L353true assume !(0 != test_~tmp~4); 48#L353-1true test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 81#L363true assume !(0 != test_~tmp___0~2); 82#L363-1true test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 23#L373true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 32#L381-2true havoc __utac_acc__Specification5_spec__2_#t~ret21;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; 104#L211true __utac_acc__Specification5_spec__2_#t~ret21 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret21;havoc __utac_acc__Specification5_spec__2_#t~ret21; 66#L297true assume !(0 != ~pumpRunning~0); 46#L100true assume !(0 != ~systemActive~0); 87#L107true havoc __utac_acc__Specification5_spec__3_#t~ret22, __utac_acc__Specification5_spec__3_#t~ret23, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 107#L938true __utac_acc__Specification5_spec__3_#t~ret22 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret22;havoc __utac_acc__Specification5_spec__3_#t~ret22; 68#L308true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 71#L308-1true [2019-11-28 21:13:04,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:04,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:13:04,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:04,348 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451075821] [2019-11-28 21:13:04,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:04,773 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:04,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:04,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1012669325, now seen corresponding path program 1 times [2019-11-28 21:13:04,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:04,775 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159886843] [2019-11-28 21:13:04,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:13:04,834 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 21:13:04,835 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159886843] [2019-11-28 21:13:04,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:13:04,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:13:04,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485059975] [2019-11-28 21:13:04,843 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:13:04,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:13:04,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:13:04,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:13:04,865 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 3 states. [2019-11-28 21:13:04,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:13:04,916 INFO L93 Difference]: Finished difference Result 111 states and 155 transitions. [2019-11-28 21:13:04,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:13:04,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 155 transitions. [2019-11-28 21:13:04,923 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-11-28 21:13:04,929 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 104 states and 147 transitions. [2019-11-28 21:13:04,930 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2019-11-28 21:13:04,931 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2019-11-28 21:13:04,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 147 transitions. [2019-11-28 21:13:04,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:13:04,934 INFO L688 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2019-11-28 21:13:04,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 147 transitions. [2019-11-28 21:13:04,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2019-11-28 21:13:04,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-28 21:13:04,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 147 transitions. [2019-11-28 21:13:04,974 INFO L711 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2019-11-28 21:13:04,974 INFO L591 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2019-11-28 21:13:04,974 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:13:04,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 147 transitions. [2019-11-28 21:13:04,976 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-11-28 21:13:04,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:13:04,977 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:13:04,978 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:04,978 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 21:13:04,978 INFO L794 eck$LassoCheckResult]: Stem: 321#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~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);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 238#L-1 havoc main_#res;havoc main_#t~ret28, main_~retValue_acc~5, main_~tmp~5;havoc main_~retValue_acc~5;havoc main_~tmp~5; 239#L65 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; 236#L73 main_#t~ret28 := valid_product_#res;main_~tmp~5 := main_#t~ret28;havoc main_#t~ret28; 237#L483 assume 0 != main_~tmp~5; 250#L459 ~switchedOnBeforeTS~0 := 0; 302#L287 havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 290#L308-1 [2019-11-28 21:13:04,979 INFO L796 eck$LassoCheckResult]: Loop: 290#L308-1 assume !false; 311#L344 assume test_~splverifierCounter~0 < 4; 284#L345 test_~tmp~4 := test_#t~nondet24;havoc test_#t~nondet24; 285#L353 assume !(0 != test_~tmp~4); 300#L353-1 test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 301#L363 assume !(0 != test_~tmp___0~2); 276#L363-1 test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 262#L373 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 264#L381-2 havoc __utac_acc__Specification5_spec__2_#t~ret21;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; 279#L211 __utac_acc__Specification5_spec__2_#t~ret21 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret21;havoc __utac_acc__Specification5_spec__2_#t~ret21; 316#L297 assume !(0 != ~pumpRunning~0); 298#L100 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 265#L158 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret1, processEnvironment__wrappee__lowWaterSensor_~tmp~0;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0; 266#L132-1 assume !(0 != ~pumpRunning~0); 256#L107 havoc __utac_acc__Specification5_spec__3_#t~ret22, __utac_acc__Specification5_spec__3_#t~ret23, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 332#L938 __utac_acc__Specification5_spec__3_#t~ret22 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret22;havoc __utac_acc__Specification5_spec__3_#t~ret22; 319#L308 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 290#L308-1 [2019-11-28 21:13:04,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:04,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:13:04,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:04,980 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754511441] [2019-11-28 21:13:04,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:05,096 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:05,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:05,097 INFO L82 PathProgramCache]: Analyzing trace with hash 363233727, now seen corresponding path program 1 times [2019-11-28 21:13:05,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:05,098 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680333717] [2019-11-28 21:13:05,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:05,114 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:05,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:05,115 INFO L82 PathProgramCache]: Analyzing trace with hash -759378631, now seen corresponding path program 1 times [2019-11-28 21:13:05,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:05,116 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460013535] [2019-11-28 21:13:05,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:13:05,223 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 21:13:05,223 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460013535] [2019-11-28 21:13:05,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:13:05,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:13:05,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806975785] [2019-11-28 21:13:05,333 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2019-11-28 21:13:05,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:13:05,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:13:05,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:13:05,418 INFO L87 Difference]: Start difference. First operand 104 states and 147 transitions. cyclomatic complexity: 45 Second operand 5 states. [2019-11-28 21:13:05,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:13:05,694 INFO L93 Difference]: Finished difference Result 320 states and 453 transitions. [2019-11-28 21:13:05,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 21:13:05,696 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 320 states and 453 transitions. [2019-11-28 21:13:05,701 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2019-11-28 21:13:05,705 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 320 states to 320 states and 453 transitions. [2019-11-28 21:13:05,705 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 320 [2019-11-28 21:13:05,707 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 320 [2019-11-28 21:13:05,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 320 states and 453 transitions. [2019-11-28 21:13:05,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:13:05,710 INFO L688 BuchiCegarLoop]: Abstraction has 320 states and 453 transitions. [2019-11-28 21:13:05,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states and 453 transitions. [2019-11-28 21:13:05,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 201. [2019-11-28 21:13:05,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2019-11-28 21:13:05,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 280 transitions. [2019-11-28 21:13:05,727 INFO L711 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2019-11-28 21:13:05,728 INFO L591 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2019-11-28 21:13:05,728 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:13:05,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 280 transitions. [2019-11-28 21:13:05,731 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2019-11-28 21:13:05,731 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:13:05,731 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:13:05,732 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:05,732 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] [2019-11-28 21:13:05,733 INFO L794 eck$LassoCheckResult]: Stem: 769#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~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);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 678#L-1 havoc main_#res;havoc main_#t~ret28, main_~retValue_acc~5, main_~tmp~5;havoc main_~retValue_acc~5;havoc main_~tmp~5; 679#L65 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; 676#L73 main_#t~ret28 := valid_product_#res;main_~tmp~5 := main_#t~ret28;havoc main_#t~ret28; 677#L483 assume 0 != main_~tmp~5; 690#L459 ~switchedOnBeforeTS~0 := 0; 744#L287 havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 732#L308-1 [2019-11-28 21:13:05,733 INFO L796 eck$LassoCheckResult]: Loop: 732#L308-1 assume !false; 756#L344 assume test_~splverifierCounter~0 < 4; 726#L345 test_~tmp~4 := test_#t~nondet24;havoc test_#t~nondet24; 727#L353 assume !(0 != test_~tmp~4); 742#L353-1 test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 743#L363 assume !(0 != test_~tmp___0~2); 717#L363-1 test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 703#L373 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 705#L381-2 havoc __utac_acc__Specification5_spec__2_#t~ret21;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; 721#L211 __utac_acc__Specification5_spec__2_#t~ret21 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret21;havoc __utac_acc__Specification5_spec__2_#t~ret21; 762#L297 assume !(0 != ~pumpRunning~0); 740#L100 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 706#L158 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret1, processEnvironment__wrappee__lowWaterSensor_~tmp~0;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0; 707#L132-1 assume !(0 != ~pumpRunning~0); 836#L107 havoc __utac_acc__Specification5_spec__3_#t~ret22, __utac_acc__Specification5_spec__3_#t~ret23, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 797#L938 __utac_acc__Specification5_spec__3_#t~ret22 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret22;havoc __utac_acc__Specification5_spec__3_#t~ret22; 765#L308 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;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; 766#L211-1 __utac_acc__Specification5_spec__3_#t~ret23 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~1 := __utac_acc__Specification5_spec__3_#t~ret23;havoc __utac_acc__Specification5_spec__3_#t~ret23; 730#L312 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1); 732#L308-1 [2019-11-28 21:13:05,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:05,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 21:13:05,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:05,735 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089545510] [2019-11-28 21:13:05,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:05,866 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:05,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:05,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1175247994, now seen corresponding path program 1 times [2019-11-28 21:13:05,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:05,868 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200221545] [2019-11-28 21:13:05,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:05,884 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:05,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:05,885 INFO L82 PathProgramCache]: Analyzing trace with hash 381563252, now seen corresponding path program 1 times [2019-11-28 21:13:05,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:05,886 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180885096] [2019-11-28 21:13:05,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:05,993 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:06,136 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-11-28 21:13:35,576 WARN L192 SmtUtils]: Spent 29.37 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:13:49,686 WARN L192 SmtUtils]: Spent 14.10 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:13:49,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:13:49 BoogieIcfgContainer [2019-11-28 21:13:49,778 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:13:49,778 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:13:49,779 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:13:49,779 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:13:49,780 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:13:04" (3/4) ... [2019-11-28 21:13:49,787 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:13:49,873 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:13:49,873 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:13:49,875 INFO L168 Benchmark]: Toolchain (without parser) took 47459.88 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 311.4 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 141.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:49,879 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:13:49,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:49,881 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.22 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:49,882 INFO L168 Benchmark]: Boogie Preprocessor took 46.93 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 21:13:49,882 INFO L168 Benchmark]: RCFGBuilder took 924.50 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: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:49,883 INFO L168 Benchmark]: BuchiAutomizer took 45621.97 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 157.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -77.8 MB). Peak memory consumption was 368.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:49,883 INFO L168 Benchmark]: Witness Printer took 95.16 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: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:49,887 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 686.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 80.22 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.93 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 924.50 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: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 45621.97 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 157.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -77.8 MB). Peak memory consumption was 368.9 MB. Max. memory is 11.5 GB. * Witness Printer took 95.16 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: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 201 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 45.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 44.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 119 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 201 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 393 SDtfs, 695 SDslu, 468 SDs, 0 SdLazy, 100 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 343]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3662} State at position 1 is {NULL=3665, NULL=0, NULL=0, retValue_acc=1, NULL=3662, NULL=3677, retValue_acc=0, NULL=3685, NULL=0, NULL=0, tmp=0, NULL=3666, NULL=3682, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a4d8458=0, tmp=1, NULL=0, tmp=0, NULL=0, NULL=0, tmp___1=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=3684, \result=0, NULL=3664, NULL=0, systemActive=1, waterLevel=1, NULL=3680, \result=1, NULL=3671, NULL=0, NULL=3668, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@358a3e5c=0, NULL=3670, NULL=0, NULL=0, NULL=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4936bc8b=0, head=0, pumpRunning=0, NULL=3678, NULL=3673, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7548a2a6=0, tmp___0=0, NULL=3687, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11c08d7b=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74b917=61, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7312a648=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a1485fe=0, NULL=0, tmp=1, NULL=0, NULL=3683, NULL=3669, NULL=3672, NULL=0, NULL=0, NULL=3676, retValue_acc=1, tmp___2=61, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=3686, NULL=3667, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57db637b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52c3cef7=0, NULL=3674, tmp=0, head=0, NULL=3663, NULL=0, NULL=0, NULL=3681, NULL=0, NULL=3679, NULL=3675, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L88] int pumpRunning = 0; [L89] int systemActive = 1; [L281] int switchedOnBeforeTS ; [L400] int cleanupTimeShifts = 4; [L666] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L863] int waterLevel = 1; [L864] int methaneLevelCritical = 0; [L474] int retValue_acc ; [L475] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L481] tmp = valid_product() [L483] COND TRUE \read(tmp) [L286] switchedOnBeforeTS = 0 [L334] int splverifierCounter ; [L335] int tmp ; [L336] int tmp___0 ; [L337] int tmp___1 ; [L338] int tmp___2 ; [L341] splverifierCounter = 0 Loop: [L343] COND TRUE 1 [L345] COND TRUE splverifierCounter < 4 [L351] tmp = __VERIFIER_nondet_int() [L353] COND FALSE !(\read(tmp)) [L361] tmp___0 = __VERIFIER_nondet_int() [L363] COND FALSE !(\read(tmp___0)) [L371] tmp___2 = __VERIFIER_nondet_int() [L373] COND TRUE \read(tmp___2) [L274] systemActive = 1 [L207] int retValue_acc ; [L210] retValue_acc = pumpRunning [L211] return (retValue_acc); [L295] switchedOnBeforeTS = isPumpRunning() [L100] COND FALSE !(\read(pumpRunning)) [L107] COND TRUE \read(systemActive) [L155] int tmp ; [L158] COND FALSE !(\read(pumpRunning)) [L129] int tmp ; [L132] COND FALSE !(\read(pumpRunning)) [L301] int tmp ; [L302] int tmp___0 ; [L934] int retValue_acc ; [L937] retValue_acc = waterLevel [L938] return (retValue_acc); [L306] tmp = getWaterLevel() [L308] COND TRUE tmp != 2 [L207] int retValue_acc ; [L210] retValue_acc = pumpRunning [L211] return (retValue_acc); [L310] tmp___0 = isPumpRunning() [L312] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...