./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product53.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_spec4_product53.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 ae33dcba0147a107c551c432e2bfc2c49f1e3070 ...................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:10:51,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:10:51,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:10:51,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:10:51,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:10:51,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:10:51,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:10:51,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:10:51,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:10:52,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:10:52,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:10:52,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:10:52,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:10:52,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:10:52,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:10:52,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:10:52,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:10:52,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:10:52,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:10:52,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:10:52,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:10:52,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:10:52,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:10:52,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:10:52,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:10:52,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:10:52,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:10:52,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:10:52,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:10:52,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:10:52,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:10:52,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:10:52,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:10:52,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:10:52,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:10:52,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:10:52,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:10:52,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:10:52,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:10:52,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:10:52,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:10:52,047 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:10:52,070 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:10:52,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:10:52,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:10:52,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:10:52,073 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:10:52,073 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:10:52,073 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:10:52,073 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:10:52,074 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:10:52,074 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:10:52,075 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:10:52,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:10:52,075 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:10:52,076 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:10:52,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:10:52,076 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:10:52,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:10:52,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:10:52,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:10:52,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:10:52,077 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:10:52,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:10:52,078 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:10:52,078 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:10:52,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:10:52,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:10:52,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:10:52,079 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:10:52,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:10:52,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:10:52,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:10:52,080 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:10:52,082 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:10:52,082 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 -> ae33dcba0147a107c551c432e2bfc2c49f1e3070 [2019-11-28 21:10:52,387 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:10:52,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:10:52,404 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:10:52,405 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:10:52,406 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:10:52,406 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2019-11-28 21:10:52,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80708aa8d/e74f077c5450493a83e2325cb9b24e45/FLAG5ebcb7b72 [2019-11-28 21:10:52,962 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:10:52,965 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2019-11-28 21:10:52,989 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80708aa8d/e74f077c5450493a83e2325cb9b24e45/FLAG5ebcb7b72 [2019-11-28 21:10:53,340 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80708aa8d/e74f077c5450493a83e2325cb9b24e45 [2019-11-28 21:10:53,343 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:10:53,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:10:53,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:10:53,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:10:53,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:10:53,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:10:53" (1/1) ... [2019-11-28 21:10:53,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce65fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:53, skipping insertion in model container [2019-11-28 21:10:53,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:10:53" (1/1) ... [2019-11-28 21:10:53,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:10:53,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:10:53,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:10:53,785 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:10:53,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:10:53,910 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:10:53,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:53 WrapperNode [2019-11-28 21:10:53,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:10:53,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:10:53,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:10:53,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:10:53,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:53" (1/1) ... [2019-11-28 21:10:53,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:53" (1/1) ... [2019-11-28 21:10:54,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:10:54,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:10:54,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:10:54,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:10:54,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:53" (1/1) ... [2019-11-28 21:10:54,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:53" (1/1) ... [2019-11-28 21:10:54,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:53" (1/1) ... [2019-11-28 21:10:54,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:53" (1/1) ... [2019-11-28 21:10:54,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:53" (1/1) ... [2019-11-28 21:10:54,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:53" (1/1) ... [2019-11-28 21:10:54,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:53" (1/1) ... [2019-11-28 21:10:54,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:10:54,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:10:54,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:10:54,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:10:54,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:53" (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 21:10:54,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:10:54,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:10:54,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:10:54,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:10:55,129 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:10:55,129 INFO L287 CfgBuilder]: Removed 276 assume(true) statements. [2019-11-28 21:10:55,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:10:55 BoogieIcfgContainer [2019-11-28 21:10:55,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:10:55,131 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:10:55,131 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:10:55,135 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:10:55,136 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:10:55,136 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:10:53" (1/3) ... [2019-11-28 21:10:55,138 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e283c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:10:55, skipping insertion in model container [2019-11-28 21:10:55,138 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:10:55,138 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:10:53" (2/3) ... [2019-11-28 21:10:55,138 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e283c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:10:55, skipping insertion in model container [2019-11-28 21:10:55,139 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:10:55,139 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:10:55" (3/3) ... [2019-11-28 21:10:55,141 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product53.cil.c [2019-11-28 21:10:55,188 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:10:55,188 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:10:55,188 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:10:55,188 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:10:55,189 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:10:55,189 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:10:55,189 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:10:55,189 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:10:55,210 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 186 states. [2019-11-28 21:10:55,244 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2019-11-28 21:10:55,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:55,244 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:55,252 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:55,252 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:10:55,252 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:10:55,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 186 states. [2019-11-28 21:10:55,262 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2019-11-28 21:10:55,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:55,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:55,263 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:55,264 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:10:55,270 INFO L794 eck$LassoCheckResult]: Stem: 128#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 13#L-1true havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 82#L733true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 113#L741true main_#t~ret74 := valid_product_#res;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 87#L967true assume 0 != main_~tmp~10; 135#L944true havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 120#L867-1true [2019-11-28 21:10:55,270 INFO L796 eck$LassoCheckResult]: Loop: 120#L867-1true assume !false; 136#L421true assume test_~splverifierCounter~0 < 4; 93#L422true test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 99#L430true assume !(0 != test_~tmp~3); 100#L430-1true test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 143#L440true assume !(0 != test_~tmp___0~0); 148#L440-1true test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 34#L450true assume 0 != test_~tmp___2~0; 184#L456-2true assume !(0 != ~pumpRunning~0); 174#L492true assume !(0 != ~systemActive~0); 80#L499true havoc __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_#t~ret73, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;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; 156#L831true __utac_acc__Specification4_spec__1_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; 119#L867true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 120#L867-1true [2019-11-28 21:10:55,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:55,277 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 21:10:55,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:55,287 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555625682] [2019-11-28 21:10:55,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:55,660 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:55,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:55,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1676481278, now seen corresponding path program 1 times [2019-11-28 21:10:55,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:55,662 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333850103] [2019-11-28 21:10:55,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:55,677 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:55,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:55,679 INFO L82 PathProgramCache]: Analyzing trace with hash 37797660, now seen corresponding path program 1 times [2019-11-28 21:10:55,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:55,680 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381573336] [2019-11-28 21:10:55,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:10:55,833 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 21:10:55,834 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381573336] [2019-11-28 21:10:55,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:10:55,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 21:10:55,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89537308] [2019-11-28 21:10:55,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:10:55,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 21:10:55,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 21:10:55,948 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 6 states. [2019-11-28 21:10:56,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:10:56,104 INFO L93 Difference]: Finished difference Result 186 states and 274 transitions. [2019-11-28 21:10:56,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 21:10:56,107 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 186 states and 274 transitions. [2019-11-28 21:10:56,113 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2019-11-28 21:10:56,120 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 186 states to 179 states and 267 transitions. [2019-11-28 21:10:56,121 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 179 [2019-11-28 21:10:56,122 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 179 [2019-11-28 21:10:56,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 179 states and 267 transitions. [2019-11-28 21:10:56,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:10:56,125 INFO L688 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2019-11-28 21:10:56,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states and 267 transitions. [2019-11-28 21:10:56,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2019-11-28 21:10:56,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-11-28 21:10:56,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 267 transitions. [2019-11-28 21:10:56,161 INFO L711 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2019-11-28 21:10:56,161 INFO L591 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2019-11-28 21:10:56,161 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:10:56,162 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 179 states and 267 transitions. [2019-11-28 21:10:56,164 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2019-11-28 21:10:56,164 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:56,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:56,165 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:56,166 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:10:56,166 INFO L794 eck$LassoCheckResult]: Stem: 549#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 410#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 411#L733 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 512#L741 main_#t~ret74 := valid_product_#res;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 517#L967 assume 0 != main_~tmp~10; 518#L944 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 471#L867-1 [2019-11-28 21:10:56,166 INFO L796 eck$LassoCheckResult]: Loop: 471#L867-1 assume !false; 545#L421 assume test_~splverifierCounter~0 < 4; 521#L422 test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 522#L430 assume !(0 != test_~tmp~3); 526#L430-1 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 527#L440 assume !(0 != test_~tmp___0~0); 424#L440-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 441#L450 assume 0 != test_~tmp___2~0; 442#L456-2 assume !(0 != ~pumpRunning~0); 564#L492 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret41, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 533#L576 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret40, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 535#L550-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 456#L524-3 assume !(0 == ~pumpRunning~0); 457#L499 havoc __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_#t~ret73, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;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; 507#L831 __utac_acc__Specification4_spec__1_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; 542#L867 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 471#L867-1 [2019-11-28 21:10:56,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:56,167 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 21:10:56,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:56,167 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901227055] [2019-11-28 21:10:56,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:56,255 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:56,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:56,256 INFO L82 PathProgramCache]: Analyzing trace with hash -270276490, now seen corresponding path program 1 times [2019-11-28 21:10:56,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:56,256 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796542465] [2019-11-28 21:10:56,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:10:56,273 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 21:10:56,273 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796542465] [2019-11-28 21:10:56,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:10:56,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:10:56,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062790759] [2019-11-28 21:10:56,275 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:10:56,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:10:56,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:10:56,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:10:56,276 INFO L87 Difference]: Start difference. First operand 179 states and 267 transitions. cyclomatic complexity: 90 Second operand 3 states. [2019-11-28 21:10:56,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:10:56,420 INFO L93 Difference]: Finished difference Result 184 states and 255 transitions. [2019-11-28 21:10:56,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:10:56,421 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 255 transitions. [2019-11-28 21:10:56,424 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2019-11-28 21:10:56,427 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 184 states and 255 transitions. [2019-11-28 21:10:56,427 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2019-11-28 21:10:56,428 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2019-11-28 21:10:56,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 255 transitions. [2019-11-28 21:10:56,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:10:56,429 INFO L688 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2019-11-28 21:10:56,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 255 transitions. [2019-11-28 21:10:56,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2019-11-28 21:10:56,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2019-11-28 21:10:56,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2019-11-28 21:10:56,441 INFO L711 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2019-11-28 21:10:56,441 INFO L591 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2019-11-28 21:10:56,441 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:10:56,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 255 transitions. [2019-11-28 21:10:56,443 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2019-11-28 21:10:56,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:10:56,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:10:56,444 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:10:56,445 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:10:56,445 INFO L794 eck$LassoCheckResult]: Stem: 893#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 773#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 774#L733 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 853#L741 main_#t~ret74 := valid_product_#res;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 860#L967 assume 0 != main_~tmp~10; 861#L944 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 822#L867-1 [2019-11-28 21:10:56,445 INFO L796 eck$LassoCheckResult]: Loop: 822#L867-1 assume !false; 885#L421 assume test_~splverifierCounter~0 < 4; 864#L422 test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 865#L430 assume !(0 != test_~tmp~3); 869#L430-1 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 870#L440 assume !(0 != test_~tmp___0~0); 786#L440-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 800#L450 assume 0 != test_~tmp___2~0; 801#L456-2 assume !(0 != ~pumpRunning~0); 908#L492 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret41, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 875#L576 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret40, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 876#L550-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 813#L524-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 814#L839-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 895#L844-3 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 818#L678-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 819#L678-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 777#L684-3 processEnvironment__wrappee__highWaterSensor_#t~ret39 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret39;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39; 778#L528-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 849#L499 havoc __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_#t~ret73, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;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; 850#L831 __utac_acc__Specification4_spec__1_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; 883#L867 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 822#L867-1 [2019-11-28 21:10:56,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:56,446 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 21:10:56,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:56,447 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595821725] [2019-11-28 21:10:56,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:56,529 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:56,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:56,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1151634370, now seen corresponding path program 1 times [2019-11-28 21:10:56,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:56,531 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431014877] [2019-11-28 21:10:56,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:56,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:56,562 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:56,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:10:56,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1890027800, now seen corresponding path program 1 times [2019-11-28 21:10:56,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:10:56,563 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559404265] [2019-11-28 21:10:56,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:10:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:10:56,700 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:10:56,848 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-11-28 21:11:17,759 WARN L192 SmtUtils]: Spent 20.85 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 21:11:30,551 WARN L192 SmtUtils]: Spent 12.79 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 21:11:30,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:11:30 BoogieIcfgContainer [2019-11-28 21:11:30,624 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:11:30,625 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:11:30,625 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:11:30,625 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:11:30,626 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:10:55" (3/4) ... [2019-11-28 21:11:30,629 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:11:30,693 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:11:30,693 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:11:30,695 INFO L168 Benchmark]: Toolchain (without parser) took 37350.07 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 312.5 MB). Free memory was 963.0 MB in the beginning and 1.2 GB in the end (delta: -280.4 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:11:30,695 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:11:30,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 565.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:11:30,697 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.79 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 21:11:30,697 INFO L168 Benchmark]: Boogie Preprocessor took 57.70 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 21:11:30,697 INFO L168 Benchmark]: RCFGBuilder took 1064.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.9 MB). Peak memory consumption was 85.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:11:30,698 INFO L168 Benchmark]: BuchiAutomizer took 35493.05 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -226.4 MB). Peak memory consumption was 380.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:11:30,699 INFO L168 Benchmark]: Witness Printer took 68.42 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2019-11-28 21:11:30,702 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 565.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 96.79 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 57.70 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 1064.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.9 MB). Peak memory consumption was 85.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35493.05 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -226.4 MB). Peak memory consumption was 380.3 MB. Max. memory is 11.5 GB. * Witness Printer took 68.42 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 184 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 34.9s. 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 184 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 472 SDtfs, 946 SDslu, 77 SDs, 0 SdLazy, 50 SolverSat, 36 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: 420]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2923} State at position 1 is {NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=2923, NULL=2936, NULL=2927, NULL=0, NULL=2928, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18054c01=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4453a98a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f59c14b=0, NULL=2944, methaneLevelCritical=0, tmp___0=0, retValue_acc=0, tmp=0, NULL=0, NULL=0, NULL=0, tmp___1=0, NULL=2941, tmp=0, NULL=2940, NULL=2926, NULL=2942, tmp=0, cleanupTimeShifts=4, NULL=2935, NULL=2932, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@745f24e7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4048759e=69, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@290972e1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59ea6fb=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@602f9125=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21bf0cd3=0, NULL=0, systemActive=1, waterLevel=1, NULL=2929, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35aa9ac=0, NULL=0, NULL=0, NULL=2947, \result=0, NULL=2924, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, retValue_acc=0, NULL=2946, head=0, pumpRunning=0, \result=0, NULL=2937, NULL=2938, NULL=0, NULL=0, \result=1, NULL=2931, NULL=2930, NULL=2948, retValue_acc=1, NULL=0, tmp=1, tmp___2=69, retValue_acc=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@633d54bb=0, NULL=2943, splverifierCounter=0, head=0, NULL=0, NULL=2925, tmp=0, NULL=2933, NULL=0, NULL=2945, NULL=0, NULL=0, NULL=2939, NULL=0, NULL=2934} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L484] int pumpRunning = 0; [L485] int systemActive = 1; [L756] int waterLevel = 1; [L757] int methaneLevelCritical = 0; [L885] int cleanupTimeShifts = 4; [L958] int retValue_acc ; [L959] int tmp ; [L737] int retValue_acc ; [L740] retValue_acc = 1 [L741] return (retValue_acc); [L965] tmp = valid_product() [L967] COND TRUE \read(tmp) [L411] int splverifierCounter ; [L412] int tmp ; [L413] int tmp___0 ; [L414] int tmp___1 ; [L415] int tmp___2 ; [L418] splverifierCounter = 0 Loop: [L420] COND TRUE 1 [L422] COND TRUE splverifierCounter < 4 [L428] tmp = __VERIFIER_nondet_int() [L430] COND FALSE !(\read(tmp)) [L438] tmp___0 = __VERIFIER_nondet_int() [L440] COND FALSE !(\read(tmp___0)) [L448] tmp___2 = __VERIFIER_nondet_int() [L450] COND TRUE \read(tmp___2) [L492] COND FALSE !(\read(pumpRunning)) [L499] COND TRUE \read(systemActive) [L573] int tmp ; [L576] COND FALSE !(\read(pumpRunning)) [L547] int tmp ; [L550] COND FALSE !(\read(pumpRunning)) [L521] int tmp ; [L524] COND TRUE ! pumpRunning [L670] int retValue_acc ; [L671] int tmp ; [L672] int tmp___0 ; [L836] int retValue_acc ; [L839] COND TRUE waterLevel < 2 [L840] retValue_acc = 1 [L841] return (retValue_acc); [L676] tmp = isHighWaterSensorDry() [L678] COND TRUE \read(tmp) [L679] tmp___0 = 0 [L683] retValue_acc = tmp___0 [L684] return (retValue_acc); [L526] tmp = isHighWaterLevel() [L528] COND FALSE !(\read(tmp)) [L860] int tmp ; [L861] int tmp___0 ; [L827] int retValue_acc ; [L830] retValue_acc = waterLevel [L831] return (retValue_acc); [L865] tmp = getWaterLevel() [L867] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...