./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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_spec4_product51.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 82fb1dfaeb04705f6833d1531288fda63f898d4b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-8bd4bc6 [2020-07-29 02:54:26,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 02:54:26,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 02:54:26,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 02:54:26,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 02:54:26,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 02:54:27,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 02:54:27,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 02:54:27,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 02:54:27,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 02:54:27,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 02:54:27,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 02:54:27,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 02:54:27,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 02:54:27,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 02:54:27,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 02:54:27,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 02:54:27,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 02:54:27,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 02:54:27,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 02:54:27,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 02:54:27,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 02:54:27,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 02:54:27,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 02:54:27,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 02:54:27,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 02:54:27,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 02:54:27,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 02:54:27,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 02:54:27,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 02:54:27,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 02:54:27,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 02:54:27,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 02:54:27,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 02:54:27,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 02:54:27,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 02:54:27,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 02:54:27,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 02:54:27,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 02:54:27,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 02:54:27,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 02:54:27,036 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 02:54:27,055 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 02:54:27,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 02:54:27,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 02:54:27,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 02:54:27,057 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 02:54:27,058 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 02:54:27,058 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 02:54:27,058 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 02:54:27,058 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 02:54:27,059 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 02:54:27,059 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 02:54:27,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 02:54:27,059 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 02:54:27,060 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 02:54:27,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 02:54:27,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 02:54:27,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 02:54:27,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 02:54:27,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 02:54:27,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 02:54:27,061 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 02:54:27,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 02:54:27,062 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 02:54:27,062 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 02:54:27,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 02:54:27,062 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 02:54:27,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 02:54:27,063 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 02:54:27,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 02:54:27,063 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 02:54:27,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 02:54:27,064 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 02:54:27,065 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 02:54:27,065 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 -> 82fb1dfaeb04705f6833d1531288fda63f898d4b [2020-07-29 02:54:27,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 02:54:27,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 02:54:27,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 02:54:27,419 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 02:54:27,421 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 02:54:27,423 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c [2020-07-29 02:54:27,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac5fe9f20/d1d4141016674ae8827e4d8bf0f1fa16/FLAGc5880a4c2 [2020-07-29 02:54:28,104 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 02:54:28,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c [2020-07-29 02:54:28,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac5fe9f20/d1d4141016674ae8827e4d8bf0f1fa16/FLAGc5880a4c2 [2020-07-29 02:54:28,320 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac5fe9f20/d1d4141016674ae8827e4d8bf0f1fa16 [2020-07-29 02:54:28,324 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 02:54:28,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 02:54:28,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 02:54:28,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 02:54:28,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 02:54:28,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:54:28" (1/1) ... [2020-07-29 02:54:28,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6658957f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:28, skipping insertion in model container [2020-07-29 02:54:28,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:54:28" (1/1) ... [2020-07-29 02:54:28,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 02:54:28,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 02:54:28,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:54:28,974 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 02:54:29,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:54:29,156 INFO L208 MainTranslator]: Completed translation [2020-07-29 02:54:29,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:29 WrapperNode [2020-07-29 02:54:29,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 02:54:29,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 02:54:29,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 02:54:29,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 02:54:29,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:29" (1/1) ... [2020-07-29 02:54:29,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:29" (1/1) ... [2020-07-29 02:54:29,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 02:54:29,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 02:54:29,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 02:54:29,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 02:54:29,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:29" (1/1) ... [2020-07-29 02:54:29,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:29" (1/1) ... [2020-07-29 02:54:29,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:29" (1/1) ... [2020-07-29 02:54:29,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:29" (1/1) ... [2020-07-29 02:54:29,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:29" (1/1) ... [2020-07-29 02:54:29,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:29" (1/1) ... [2020-07-29 02:54:29,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:29" (1/1) ... [2020-07-29 02:54:29,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 02:54:29,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 02:54:29,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 02:54:29,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 02:54:29,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:29" (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 [2020-07-29 02:54:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 02:54:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-29 02:54:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 02:54:29,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 02:54:30,854 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 02:54:30,855 INFO L295 CfgBuilder]: Removed 160 assume(true) statements. [2020-07-29 02:54:30,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:54:30 BoogieIcfgContainer [2020-07-29 02:54:30,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 02:54:30,861 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 02:54:30,861 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 02:54:30,864 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 02:54:30,866 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:54:30,866 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 02:54:28" (1/3) ... [2020-07-29 02:54:30,867 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d1d9901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:54:30, skipping insertion in model container [2020-07-29 02:54:30,867 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:54:30,868 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:29" (2/3) ... [2020-07-29 02:54:30,868 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d1d9901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:54:30, skipping insertion in model container [2020-07-29 02:54:30,868 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:54:30,868 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:54:30" (3/3) ... [2020-07-29 02:54:30,870 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2020-07-29 02:54:30,925 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 02:54:30,925 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 02:54:30,925 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 02:54:30,926 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 02:54:30,926 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 02:54:30,926 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 02:54:30,926 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 02:54:30,926 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 02:54:30,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states. [2020-07-29 02:54:30,996 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2020-07-29 02:54:30,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:54:30,997 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:54:31,005 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:54:31,005 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:54:31,006 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 02:54:31,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states. [2020-07-29 02:54:31,024 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2020-07-29 02:54:31,025 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:54:31,025 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:54:31,026 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:54:31,026 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:54:31,033 INFO L794 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 11#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 56#L303true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 71#L311true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 53#L130true assume 0 != main_~tmp~0; 29#L103true havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 38#L155-1true [2020-07-29 02:54:31,034 INFO L796 eck$LassoCheckResult]: Loop: 38#L155-1true assume !false; 78#L542true assume test_~splverifierCounter~0 < 4; 49#L543true test_~tmp~6 := test_#t~nondet35;havoc test_#t~nondet35; 52#L551true assume !(0 != test_~tmp~6); 54#L551-1true test_~tmp___0~3 := test_#t~nondet36;havoc test_#t~nondet36; 91#L561true assume !(0 != test_~tmp___0~3); 94#L561-1true test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 36#L571true assume 0 != test_~tmp___2~0; 8#L577-1true assume !(0 != ~pumpRunning~0); 35#L326true assume !(0 != ~systemActive~0); 69#L333true havoc __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_#t~ret2, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 76#L253true __utac_acc__Specification4_spec__1_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret1;havoc __utac_acc__Specification4_spec__1_#t~ret1; 39#L155true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 38#L155-1true [2020-07-29 02:54:31,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:54:31,041 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-07-29 02:54:31,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:54:31,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523521069] [2020-07-29 02:54:31,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:54:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:31,287 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:31,449 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:31,490 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:54:31,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:54:31,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1671186421, now seen corresponding path program 1 times [2020-07-29 02:54:31,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:54:31,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118933312] [2020-07-29 02:54:31,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:54:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:31,500 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:31,505 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:31,510 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:54:31,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:54:31,512 INFO L82 PathProgramCache]: Analyzing trace with hash 43092517, now seen corresponding path program 1 times [2020-07-29 02:54:31,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:54:31,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234000251] [2020-07-29 02:54:31,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:54:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:54:31,697 INFO L280 TraceCheckUtils]: 0: Hoare triple {124#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {126#(= 1 ~systemActive~0)} is VALID [2020-07-29 02:54:31,699 INFO L280 TraceCheckUtils]: 1: Hoare triple {126#(= 1 ~systemActive~0)} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {126#(= 1 ~systemActive~0)} is VALID [2020-07-29 02:54:31,700 INFO L280 TraceCheckUtils]: 2: Hoare triple {126#(= 1 ~systemActive~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; {127#(= |ULTIMATE.start_valid_product_#res| ~systemActive~0)} is VALID [2020-07-29 02:54:31,704 INFO L280 TraceCheckUtils]: 3: Hoare triple {127#(= |ULTIMATE.start_valid_product_#res| ~systemActive~0)} main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {128#(= ULTIMATE.start_main_~tmp~0 ~systemActive~0)} is VALID [2020-07-29 02:54:31,706 INFO L280 TraceCheckUtils]: 4: Hoare triple {128#(= ULTIMATE.start_main_~tmp~0 ~systemActive~0)} assume 0 != main_~tmp~0; {129#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:54:31,707 INFO L280 TraceCheckUtils]: 5: Hoare triple {129#(not (= 0 ~systemActive~0))} havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {129#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:54:31,707 INFO L280 TraceCheckUtils]: 6: Hoare triple {129#(not (= 0 ~systemActive~0))} assume !false; {129#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:54:31,708 INFO L280 TraceCheckUtils]: 7: Hoare triple {129#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0 < 4; {129#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:54:31,709 INFO L280 TraceCheckUtils]: 8: Hoare triple {129#(not (= 0 ~systemActive~0))} test_~tmp~6 := test_#t~nondet35;havoc test_#t~nondet35; {129#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:54:31,710 INFO L280 TraceCheckUtils]: 9: Hoare triple {129#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~6); {129#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:54:31,711 INFO L280 TraceCheckUtils]: 10: Hoare triple {129#(not (= 0 ~systemActive~0))} test_~tmp___0~3 := test_#t~nondet36;havoc test_#t~nondet36; {129#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:54:31,712 INFO L280 TraceCheckUtils]: 11: Hoare triple {129#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~3); {129#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:54:31,713 INFO L280 TraceCheckUtils]: 12: Hoare triple {129#(not (= 0 ~systemActive~0))} test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; {129#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:54:31,714 INFO L280 TraceCheckUtils]: 13: Hoare triple {129#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0; {129#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:54:31,715 INFO L280 TraceCheckUtils]: 14: Hoare triple {129#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {129#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:54:31,715 INFO L280 TraceCheckUtils]: 15: Hoare triple {129#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {125#false} is VALID [2020-07-29 02:54:31,716 INFO L280 TraceCheckUtils]: 16: Hoare triple {125#false} havoc __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_#t~ret2, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {125#false} is VALID [2020-07-29 02:54:31,716 INFO L280 TraceCheckUtils]: 17: Hoare triple {125#false} __utac_acc__Specification4_spec__1_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret1;havoc __utac_acc__Specification4_spec__1_#t~ret1; {125#false} is VALID [2020-07-29 02:54:31,717 INFO L280 TraceCheckUtils]: 18: Hoare triple {125#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); {125#false} is VALID [2020-07-29 02:54:31,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:54:31,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234000251] [2020-07-29 02:54:31,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:54:31,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-29 02:54:31,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051948764] [2020-07-29 02:54:31,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:54:31,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-29 02:54:31,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-29 02:54:31,850 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 6 states. [2020-07-29 02:54:33,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:54:33,411 INFO L93 Difference]: Finished difference Result 276 states and 396 transitions. [2020-07-29 02:54:33,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-29 02:54:33,413 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-29 02:54:33,461 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:54:33,464 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 276 states and 396 transitions. [2020-07-29 02:54:33,500 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 177 [2020-07-29 02:54:33,529 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 276 states to 255 states and 375 transitions. [2020-07-29 02:54:33,530 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 255 [2020-07-29 02:54:33,531 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 255 [2020-07-29 02:54:33,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 255 states and 375 transitions. [2020-07-29 02:54:33,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:54:33,536 INFO L688 BuchiCegarLoop]: Abstraction has 255 states and 375 transitions. [2020-07-29 02:54:33,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states and 375 transitions. [2020-07-29 02:54:33,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 150. [2020-07-29 02:54:33,593 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:54:33,594 INFO L82 GeneralOperation]: Start isEquivalent. First operand 255 states and 375 transitions. Second operand 150 states. [2020-07-29 02:54:33,595 INFO L74 IsIncluded]: Start isIncluded. First operand 255 states and 375 transitions. Second operand 150 states. [2020-07-29 02:54:33,597 INFO L87 Difference]: Start difference. First operand 255 states and 375 transitions. Second operand 150 states. [2020-07-29 02:54:33,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:54:33,612 INFO L93 Difference]: Finished difference Result 255 states and 375 transitions. [2020-07-29 02:54:33,612 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 375 transitions. [2020-07-29 02:54:33,619 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:54:33,620 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:54:33,624 INFO L74 IsIncluded]: Start isIncluded. First operand 150 states. Second operand 255 states and 375 transitions. [2020-07-29 02:54:33,624 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 255 states and 375 transitions. [2020-07-29 02:54:33,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:54:33,638 INFO L93 Difference]: Finished difference Result 255 states and 375 transitions. [2020-07-29 02:54:33,638 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 375 transitions. [2020-07-29 02:54:33,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:54:33,645 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:54:33,646 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:54:33,646 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:54:33,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-07-29 02:54:33,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 219 transitions. [2020-07-29 02:54:33,657 INFO L711 BuchiCegarLoop]: Abstraction has 150 states and 219 transitions. [2020-07-29 02:54:33,665 INFO L591 BuchiCegarLoop]: Abstraction has 150 states and 219 transitions. [2020-07-29 02:54:33,666 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 02:54:33,666 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 219 transitions. [2020-07-29 02:54:33,671 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2020-07-29 02:54:33,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:54:33,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:54:33,672 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:54:33,672 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:54:33,672 INFO L794 eck$LassoCheckResult]: Stem: 501#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 426#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 427#L303 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 485#L311 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 483#L130 assume 0 != main_~tmp~0; 453#L103 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 454#L155-1 [2020-07-29 02:54:33,673 INFO L796 eck$LassoCheckResult]: Loop: 454#L155-1 assume !false; 465#L542 assume test_~splverifierCounter~0 < 4; 478#L543 test_~tmp~6 := test_#t~nondet35;havoc test_#t~nondet35; 479#L551 assume !(0 != test_~tmp~6); 482#L551-1 test_~tmp___0~3 := test_#t~nondet36;havoc test_#t~nondet36; 484#L561 assume !(0 != test_~tmp___0~3); 413#L561-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 462#L571 assume 0 != test_~tmp___2~0; 418#L577-1 assume !(0 != ~pumpRunning~0); 421#L326 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 456#L384 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 458#L358-1 assume !(0 == ~pumpRunning~0); 431#L333 havoc __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_#t~ret2, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 498#L253 __utac_acc__Specification4_spec__1_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret1;havoc __utac_acc__Specification4_spec__1_#t~ret1; 466#L155 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 454#L155-1 [2020-07-29 02:54:33,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:54:33,673 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-07-29 02:54:33,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:54:33,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586225587] [2020-07-29 02:54:33,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:54:33,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:33,769 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:33,812 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:33,834 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:54:33,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:54:33,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1961899913, now seen corresponding path program 1 times [2020-07-29 02:54:33,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:54:33,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691092470] [2020-07-29 02:54:33,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:54:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:54:33,858 INFO L280 TraceCheckUtils]: 0: Hoare triple {1075#true} assume !false; {1075#true} is VALID [2020-07-29 02:54:33,859 INFO L280 TraceCheckUtils]: 1: Hoare triple {1075#true} assume test_~splverifierCounter~0 < 4; {1075#true} is VALID [2020-07-29 02:54:33,859 INFO L280 TraceCheckUtils]: 2: Hoare triple {1075#true} test_~tmp~6 := test_#t~nondet35;havoc test_#t~nondet35; {1075#true} is VALID [2020-07-29 02:54:33,859 INFO L280 TraceCheckUtils]: 3: Hoare triple {1075#true} assume !(0 != test_~tmp~6); {1075#true} is VALID [2020-07-29 02:54:33,859 INFO L280 TraceCheckUtils]: 4: Hoare triple {1075#true} test_~tmp___0~3 := test_#t~nondet36;havoc test_#t~nondet36; {1075#true} is VALID [2020-07-29 02:54:33,860 INFO L280 TraceCheckUtils]: 5: Hoare triple {1075#true} assume !(0 != test_~tmp___0~3); {1075#true} is VALID [2020-07-29 02:54:33,860 INFO L280 TraceCheckUtils]: 6: Hoare triple {1075#true} test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; {1075#true} is VALID [2020-07-29 02:54:33,860 INFO L280 TraceCheckUtils]: 7: Hoare triple {1075#true} assume 0 != test_~tmp___2~0; {1075#true} is VALID [2020-07-29 02:54:33,861 INFO L280 TraceCheckUtils]: 8: Hoare triple {1075#true} assume !(0 != ~pumpRunning~0); {1077#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 02:54:33,862 INFO L280 TraceCheckUtils]: 9: Hoare triple {1077#(= 0 ~pumpRunning~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; {1077#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 02:54:33,862 INFO L280 TraceCheckUtils]: 10: Hoare triple {1077#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; {1077#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 02:54:33,863 INFO L280 TraceCheckUtils]: 11: Hoare triple {1077#(= 0 ~pumpRunning~0)} assume !(0 == ~pumpRunning~0); {1076#false} is VALID [2020-07-29 02:54:33,863 INFO L280 TraceCheckUtils]: 12: Hoare triple {1076#false} havoc __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_#t~ret2, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {1076#false} is VALID [2020-07-29 02:54:33,863 INFO L280 TraceCheckUtils]: 13: Hoare triple {1076#false} __utac_acc__Specification4_spec__1_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret1;havoc __utac_acc__Specification4_spec__1_#t~ret1; {1076#false} is VALID [2020-07-29 02:54:33,864 INFO L280 TraceCheckUtils]: 14: Hoare triple {1076#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); {1076#false} is VALID [2020-07-29 02:54:33,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:54:33,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691092470] [2020-07-29 02:54:33,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:54:33,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 02:54:33,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939818217] [2020-07-29 02:54:33,866 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 02:54:33,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:54:33,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 02:54:33,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 02:54:33,867 INFO L87 Difference]: Start difference. First operand 150 states and 219 transitions. cyclomatic complexity: 72 Second operand 3 states. [2020-07-29 02:54:34,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:54:34,226 INFO L93 Difference]: Finished difference Result 189 states and 259 transitions. [2020-07-29 02:54:34,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 02:54:34,226 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 02:54:34,244 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:54:34,245 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 189 states and 259 transitions. [2020-07-29 02:54:34,254 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2020-07-29 02:54:34,263 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 189 states to 189 states and 259 transitions. [2020-07-29 02:54:34,263 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 189 [2020-07-29 02:54:34,264 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 189 [2020-07-29 02:54:34,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 189 states and 259 transitions. [2020-07-29 02:54:34,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:54:34,269 INFO L688 BuchiCegarLoop]: Abstraction has 189 states and 259 transitions. [2020-07-29 02:54:34,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states and 259 transitions. [2020-07-29 02:54:34,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2020-07-29 02:54:34,292 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:54:34,292 INFO L82 GeneralOperation]: Start isEquivalent. First operand 189 states and 259 transitions. Second operand 189 states. [2020-07-29 02:54:34,292 INFO L74 IsIncluded]: Start isIncluded. First operand 189 states and 259 transitions. Second operand 189 states. [2020-07-29 02:54:34,292 INFO L87 Difference]: Start difference. First operand 189 states and 259 transitions. Second operand 189 states. [2020-07-29 02:54:34,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:54:34,303 INFO L93 Difference]: Finished difference Result 189 states and 259 transitions. [2020-07-29 02:54:34,303 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 259 transitions. [2020-07-29 02:54:34,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:54:34,303 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:54:34,304 INFO L74 IsIncluded]: Start isIncluded. First operand 189 states. Second operand 189 states and 259 transitions. [2020-07-29 02:54:34,304 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 189 states and 259 transitions. [2020-07-29 02:54:34,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:54:34,310 INFO L93 Difference]: Finished difference Result 189 states and 259 transitions. [2020-07-29 02:54:34,310 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 259 transitions. [2020-07-29 02:54:34,311 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:54:34,311 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:54:34,311 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:54:34,311 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:54:34,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-07-29 02:54:34,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 259 transitions. [2020-07-29 02:54:34,318 INFO L711 BuchiCegarLoop]: Abstraction has 189 states and 259 transitions. [2020-07-29 02:54:34,318 INFO L591 BuchiCegarLoop]: Abstraction has 189 states and 259 transitions. [2020-07-29 02:54:34,318 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-29 02:54:34,319 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 189 states and 259 transitions. [2020-07-29 02:54:34,320 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2020-07-29 02:54:34,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:54:34,321 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:54:34,322 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:54:34,322 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] [2020-07-29 02:54:34,323 INFO L794 eck$LassoCheckResult]: Stem: 1369#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1283#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1284#L303 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 1346#L311 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1343#L130 assume 0 != main_~tmp~0; 1311#L103 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1312#L155-1 [2020-07-29 02:54:34,323 INFO L796 eck$LassoCheckResult]: Loop: 1312#L155-1 assume !false; 1322#L542 assume test_~splverifierCounter~0 < 4; 1338#L543 test_~tmp~6 := test_#t~nondet35;havoc test_#t~nondet35; 1339#L551 assume !(0 != test_~tmp~6); 1342#L551-1 test_~tmp___0~3 := test_#t~nondet36;havoc test_#t~nondet36; 1433#L561 assume !(0 != test_~tmp___0~3); 1431#L561-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 1319#L571 assume 0 != test_~tmp___2~0; 1275#L577-1 assume !(0 != ~pumpRunning~0); 1318#L326 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1314#L384 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 1315#L358-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; 1355#L261-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; 1384#L266-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 1271#L486-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1272#L486-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 1276#L492-1 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 1287#L362-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 1289#L333 havoc __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_#t~ret2, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 1360#L253 __utac_acc__Specification4_spec__1_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret1;havoc __utac_acc__Specification4_spec__1_#t~ret1; 1323#L155 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 1312#L155-1 [2020-07-29 02:54:34,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:54:34,324 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-07-29 02:54:34,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:54:34,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985652333] [2020-07-29 02:54:34,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:54:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:34,413 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:34,451 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:34,461 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:54:34,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:54:34,462 INFO L82 PathProgramCache]: Analyzing trace with hash -2099215595, now seen corresponding path program 1 times [2020-07-29 02:54:34,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:54:34,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049391060] [2020-07-29 02:54:34,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:54:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:34,468 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:34,473 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:34,478 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:54:34,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:54:34,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1643144401, now seen corresponding path program 1 times [2020-07-29 02:54:34,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:54:34,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411731530] [2020-07-29 02:54:34,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:54:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:34,521 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:34,560 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:34,577 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:55:20,435 WARN L193 SmtUtils]: Spent 45.65 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2020-07-29 02:55:57,856 WARN L193 SmtUtils]: Spent 37.10 s on a formula simplification that was a NOOP. DAG size: 400 [2020-07-29 02:55:58,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 02:55:58 BoogieIcfgContainer [2020-07-29 02:55:58,197 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 02:55:58,198 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 02:55:58,198 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 02:55:58,198 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 02:55:58,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:54:30" (3/4) ... [2020-07-29 02:55:58,214 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 02:55:58,307 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 02:55:58,307 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 02:55:58,313 INFO L168 Benchmark]: Toolchain (without parser) took 89984.04 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 353.4 MB). Free memory was 950.8 MB in the beginning and 1.3 GB in the end (delta: -356.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:55:58,313 INFO L168 Benchmark]: CDTParser took 1.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:55:58,314 INFO L168 Benchmark]: CACSL2BoogieTranslator took 828.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2020-07-29 02:55:58,316 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.64 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. [2020-07-29 02:55:58,316 INFO L168 Benchmark]: Boogie Preprocessor took 86.78 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. [2020-07-29 02:55:58,317 INFO L168 Benchmark]: RCFGBuilder took 1511.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 955.0 MB in the end (delta: 146.8 MB). Peak memory consumption was 146.8 MB. Max. memory is 11.5 GB. [2020-07-29 02:55:58,317 INFO L168 Benchmark]: BuchiAutomizer took 87336.83 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 227.0 MB). Free memory was 955.0 MB in the beginning and 1.3 GB in the end (delta: -352.0 MB). Peak memory consumption was 326.3 MB. Max. memory is 11.5 GB. [2020-07-29 02:55:58,317 INFO L168 Benchmark]: Witness Printer took 109.41 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:55:58,319 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 828.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 102.64 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 86.78 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 1511.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 955.0 MB in the end (delta: 146.8 MB). Peak memory consumption was 146.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 87336.83 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 227.0 MB). Free memory was 955.0 MB in the beginning and 1.3 GB in the end (delta: -352.0 MB). Peak memory consumption was 326.3 MB. Max. memory is 11.5 GB. * Witness Printer took 109.41 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 6 locations. The remainder module has 189 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 87.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 84.8s. Construction of modules took 0.2s. Büchi inclusion checks took 1.7s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 105 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 189 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 321 SDtfs, 894 SDslu, 725 SDs, 0 SdLazy, 69 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 541]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=30920} State at position 1 is {NULL=0, NULL=0, NULL=30936, retValue_acc=0, NULL=30920, NULL=30931, NULL=0, NULL=0, methaneLevelCritical=0, NULL=30940, tmp___0=0, NULL=0, NULL=0, tmp=0, NULL=0, retValue_acc=0, NULL=30932, NULL=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7131e7c3=0, NULL=0, NULL=0, NULL=0, NULL=30924, tmp___0=0, NULL=30930, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cc83188=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3cd6ba02=51, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d24e1b1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d00ca31=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74418eb1=0, NULL=0, systemActive=1, waterLevel=1, NULL=30942, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@eec007=0, NULL=30944, NULL=0, NULL=30928, \result=0, NULL=0, retValue_acc=1, NULL=30925, NULL=0, NULL=0, NULL=30935, \result=1, NULL=30921, head=0, pumpRunning=0, tmp=1, NULL=30938, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d9f477c=0, NULL=30933, NULL=0, NULL=0, \result=1, retValue_acc=1, NULL=30922, NULL=30923, NULL=30926, tmp=1, NULL=0, tmp=1, tmp___0=0, tmp___2=51, NULL=30929, NULL=30945, splverifierCounter=0, NULL=0, NULL=30941, NULL=30939, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c0690ae=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33aae27d=0, NULL=30934, tmp=0, head=0, NULL=0, NULL=0, NULL=30927, NULL=0, NULL=0, NULL=30943, NULL=0, NULL=30937} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L178] int waterLevel = 1; [L179] int methaneLevelCritical = 0; [L319] int pumpRunning = 0; [L320] int systemActive = 1; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L307] int retValue_acc ; [L310] retValue_acc = 1 [L311] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L532] int splverifierCounter ; [L533] int tmp ; [L534] int tmp___0 ; [L535] int tmp___1 ; [L536] int tmp___2 ; [L539] splverifierCounter = 0 Loop: [L541] COND TRUE 1 [L543] COND TRUE splverifierCounter < 4 [L549] tmp = __VERIFIER_nondet_int() [L551] COND FALSE !(\read(tmp)) [L559] tmp___0 = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp___0)) [L569] tmp___2 = __VERIFIER_nondet_int() [L571] COND TRUE \read(tmp___2) [L326] COND FALSE !(\read(pumpRunning)) [L333] COND TRUE \read(systemActive) [L381] int tmp ; [L384] COND FALSE !(\read(pumpRunning)) [L355] int tmp ; [L358] COND TRUE ! pumpRunning [L478] int retValue_acc ; [L479] int tmp ; [L480] int tmp___0 ; [L258] int retValue_acc ; [L261] COND TRUE waterLevel < 2 [L262] retValue_acc = 1 [L263] return (retValue_acc); [L484] tmp = isHighWaterSensorDry() [L486] COND TRUE \read(tmp) [L487] tmp___0 = 0 [L491] retValue_acc = tmp___0 [L492] return (retValue_acc); [L360] tmp = isHighWaterLevel() [L362] COND FALSE !(\read(tmp)) [L148] int tmp ; [L149] int tmp___0 ; [L249] int retValue_acc ; [L252] retValue_acc = waterLevel [L253] return (retValue_acc); [L153] tmp = getWaterLevel() [L155] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...