./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product64.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 f1df426416c0b8e66bfd1bb2b307ec8233b9df30 ............................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:27:33,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:27:33,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:27:33,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:27:33,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:27:33,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:27:33,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:27:33,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:27:33,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:27:33,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:27:33,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:27:33,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:27:33,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:27:33,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:27:33,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:27:33,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:27:33,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:27:33,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:27:33,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:27:33,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:27:33,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:27:33,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:27:33,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:27:33,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:27:33,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:27:33,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:27:33,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:27:33,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:27:33,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:27:33,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:27:33,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:27:33,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:27:33,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:27:33,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:27:33,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:27:33,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:27:33,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:27:33,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:27:33,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:27:33,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:27:33,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:27:33,937 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 22:27:33,953 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:27:33,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:27:33,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:27:33,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:27:33,955 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:27:33,955 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 22:27:33,956 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 22:27:33,956 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 22:27:33,956 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 22:27:33,956 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 22:27:33,957 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 22:27:33,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:27:33,957 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:27:33,958 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:27:33,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:27:33,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:27:33,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:27:33,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 22:27:33,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 22:27:33,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 22:27:33,959 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:27:33,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:27:33,960 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 22:27:33,960 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:27:33,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 22:27:33,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:27:33,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:27:33,961 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 22:27:33,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:27:33,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:27:33,962 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 22:27:33,963 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 22:27:33,964 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 -> f1df426416c0b8e66bfd1bb2b307ec8233b9df30 [2019-11-19 22:27:34,244 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:27:34,259 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:27:34,263 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:27:34,265 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:27:34,265 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:27:34,266 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c [2019-11-19 22:27:34,338 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aa245861/840853ee38c249ef9ebbd3df9af02852/FLAG6fa11ad05 [2019-11-19 22:27:34,895 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:27:34,899 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c [2019-11-19 22:27:34,923 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aa245861/840853ee38c249ef9ebbd3df9af02852/FLAG6fa11ad05 [2019-11-19 22:27:35,240 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aa245861/840853ee38c249ef9ebbd3df9af02852 [2019-11-19 22:27:35,242 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:27:35,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:27:35,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:27:35,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:27:35,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:27:35,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:27:35" (1/1) ... [2019-11-19 22:27:35,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ffcaf43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:27:35, skipping insertion in model container [2019-11-19 22:27:35,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:27:35" (1/1) ... [2019-11-19 22:27:35,260 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:27:35,307 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:27:35,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:27:35,718 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:27:35,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:27:35,914 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:27:35,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:27:35 WrapperNode [2019-11-19 22:27:35,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:27:35,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:27:35,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:27:35,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:27:35,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:27:35" (1/1) ... [2019-11-19 22:27:35,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:27:35" (1/1) ... [2019-11-19 22:27:36,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:27:36,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:27:36,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:27:36,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:27:36,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:27:35" (1/1) ... [2019-11-19 22:27:36,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:27:35" (1/1) ... [2019-11-19 22:27:36,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:27:35" (1/1) ... [2019-11-19 22:27:36,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:27:35" (1/1) ... [2019-11-19 22:27:36,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:27:35" (1/1) ... [2019-11-19 22:27:36,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:27:35" (1/1) ... [2019-11-19 22:27:36,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:27:35" (1/1) ... [2019-11-19 22:27:36,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:27:36,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:27:36,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:27:36,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:27:36,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:27:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:27:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:27:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 22:27:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:27:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:27:37,218 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:27:37,219 INFO L285 CfgBuilder]: Removed 354 assume(true) statements. [2019-11-19 22:27:37,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:27:37 BoogieIcfgContainer [2019-11-19 22:27:37,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:27:37,222 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 22:27:37,222 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 22:27:37,225 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 22:27:37,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:27:37,226 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 10:27:35" (1/3) ... [2019-11-19 22:27:37,228 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c1db644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:27:37, skipping insertion in model container [2019-11-19 22:27:37,228 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:27:37,228 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:27:35" (2/3) ... [2019-11-19 22:27:37,229 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c1db644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:27:37, skipping insertion in model container [2019-11-19 22:27:37,229 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:27:37,229 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:27:37" (3/3) ... [2019-11-19 22:27:37,231 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product64.cil.c [2019-11-19 22:27:37,272 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 22:27:37,272 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 22:27:37,272 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 22:27:37,272 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:27:37,272 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:27:37,273 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 22:27:37,273 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:27:37,273 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 22:27:37,293 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 224 states. [2019-11-19 22:27:37,329 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2019-11-19 22:27:37,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:27:37,329 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:27:37,336 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:27:37,336 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:27:37,337 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 22:27:37,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 224 states. [2019-11-19 22:27:37,348 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2019-11-19 22:27:37,348 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:27:37,348 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:27:37,350 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:27:37,350 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:27:37,355 INFO L794 eck$LassoCheckResult]: Stem: 73#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~head~0.base, ~head~0.offset := 0, 0;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~string24.base, #t~string24.offset := #Ultimate.allocOnStack(30);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(9);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(21);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~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(110, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 3 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(80, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(117, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(109, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(112, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(32, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string59.base, #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 1 + #t~string59.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;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); 15#L-1true havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 205#L74true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 84#L82true main_#t~ret38 := valid_product_#res;main_~tmp~4 := main_#t~ret38;havoc main_#t~ret38; 153#L568true assume 0 != main_~tmp~4; 11#L544true havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 40#L97-1true [2019-11-19 22:27:37,355 INFO L796 eck$LassoCheckResult]: Loop: 40#L97-1true assume !false; 101#L968true assume test_~splverifierCounter~0 < 4; 45#L969true test_~tmp~11 := test_#t~nondet72;havoc test_#t~nondet72; 184#L977true assume !(0 != test_~tmp~11); 187#L977-1true test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 128#L987true assume !(0 != test_~tmp___0~3); 132#L987-1true test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 165#L997true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 167#L1005-1true assume !(0 != ~pumpRunning~0); 202#L597true assume !(0 != ~systemActive~0); 29#L604true havoc __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_#t~ret2, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 78#L897-5true __utac_acc__Specification1_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret1;havoc __utac_acc__Specification1_spec__1_#t~ret1; 41#L97true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 40#L97-1true [2019-11-19 22:27:37,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:27:37,362 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-19 22:27:37,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:27:37,372 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837033441] [2019-11-19 22:27:37,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:27:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:27:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:27:37,749 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:27:37,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:27:37,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1665583732, now seen corresponding path program 1 times [2019-11-19 22:27:37,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:27:37,751 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139371119] [2019-11-19 22:27:37,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:27:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:27:37,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:27:37,809 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139371119] [2019-11-19 22:27:37,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:27:37,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 22:27:37,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078757835] [2019-11-19 22:27:37,817 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 22:27:37,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:27:37,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:27:37,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:27:37,833 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 3 states. [2019-11-19 22:27:37,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:27:37,947 INFO L93 Difference]: Finished difference Result 442 states and 648 transitions. [2019-11-19 22:27:37,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:27:37,950 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 442 states and 648 transitions. [2019-11-19 22:27:37,962 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 290 [2019-11-19 22:27:37,973 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 442 states to 428 states and 633 transitions. [2019-11-19 22:27:37,974 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 428 [2019-11-19 22:27:37,977 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 428 [2019-11-19 22:27:37,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 428 states and 633 transitions. [2019-11-19 22:27:37,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:27:37,981 INFO L688 BuchiCegarLoop]: Abstraction has 428 states and 633 transitions. [2019-11-19 22:27:38,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states and 633 transitions. [2019-11-19 22:27:38,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 426. [2019-11-19 22:27:38,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2019-11-19 22:27:38,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 630 transitions. [2019-11-19 22:27:38,046 INFO L711 BuchiCegarLoop]: Abstraction has 426 states and 630 transitions. [2019-11-19 22:27:38,047 INFO L591 BuchiCegarLoop]: Abstraction has 426 states and 630 transitions. [2019-11-19 22:27:38,047 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 22:27:38,047 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 426 states and 630 transitions. [2019-11-19 22:27:38,058 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 288 [2019-11-19 22:27:38,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:27:38,059 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:27:38,061 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:27:38,062 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:27:38,062 INFO L794 eck$LassoCheckResult]: Stem: 806#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~head~0.base, ~head~0.offset := 0, 0;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~string24.base, #t~string24.offset := #Ultimate.allocOnStack(30);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(9);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(21);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~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(110, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 3 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(80, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(117, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(109, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(112, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(32, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string59.base, #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 1 + #t~string59.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;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); 696#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 697#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 815#L82 main_#t~ret38 := valid_product_#res;main_~tmp~4 := main_#t~ret38;havoc main_#t~ret38; 816#L568 assume 0 != main_~tmp~4; 688#L544 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 689#L97-1 [2019-11-19 22:27:38,063 INFO L796 eck$LassoCheckResult]: Loop: 689#L97-1 assume !false; 749#L968 assume test_~splverifierCounter~0 < 4; 1033#L969 test_~tmp~11 := test_#t~nondet72;havoc test_#t~nondet72; 1088#L977 assume !(0 != test_~tmp~11); 1086#L977-1 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 1085#L987 assume !(0 != test_~tmp___0~3); 1083#L987-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 1082#L997 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 904#L1005-1 assume !(0 != ~pumpRunning~0); 1079#L597 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret41, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1078#L681 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret40, processEnvironment__wrappee__methaneQuery_~tmp~6;havoc processEnvironment__wrappee__methaneQuery_~tmp~6; 776#L655-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 778#L629-3 assume !(0 == ~pumpRunning~0); 1036#L604 havoc __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_#t~ret2, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 808#L897-5 __utac_acc__Specification1_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret1;havoc __utac_acc__Specification1_spec__1_#t~ret1; 809#L97 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 689#L97-1 [2019-11-19 22:27:38,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:27:38,063 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-19 22:27:38,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:27:38,065 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280618425] [2019-11-19 22:27:38,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:27:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:27:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:27:38,204 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:27:38,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:27:38,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1220566465, now seen corresponding path program 1 times [2019-11-19 22:27:38,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:27:38,207 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331489622] [2019-11-19 22:27:38,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:27:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:27:38,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:27:38,244 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331489622] [2019-11-19 22:27:38,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:27:38,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 22:27:38,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210526348] [2019-11-19 22:27:38,245 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 22:27:38,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:27:38,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:27:38,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:27:38,246 INFO L87 Difference]: Start difference. First operand 426 states and 630 transitions. cyclomatic complexity: 207 Second operand 3 states. [2019-11-19 22:27:38,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:27:38,423 INFO L93 Difference]: Finished difference Result 419 states and 586 transitions. [2019-11-19 22:27:38,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:27:38,424 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 419 states and 586 transitions. [2019-11-19 22:27:38,430 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 291 [2019-11-19 22:27:38,434 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 419 states to 419 states and 586 transitions. [2019-11-19 22:27:38,435 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 419 [2019-11-19 22:27:38,436 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 419 [2019-11-19 22:27:38,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 419 states and 586 transitions. [2019-11-19 22:27:38,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:27:38,439 INFO L688 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2019-11-19 22:27:38,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states and 586 transitions. [2019-11-19 22:27:38,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2019-11-19 22:27:38,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2019-11-19 22:27:38,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 586 transitions. [2019-11-19 22:27:38,458 INFO L711 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2019-11-19 22:27:38,458 INFO L591 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2019-11-19 22:27:38,459 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 22:27:38,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 419 states and 586 transitions. [2019-11-19 22:27:38,462 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 291 [2019-11-19 22:27:38,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:27:38,463 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:27:38,464 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:27:38,464 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] [2019-11-19 22:27:38,464 INFO L794 eck$LassoCheckResult]: Stem: 1696#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~head~0.base, ~head~0.offset := 0, 0;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~string24.base, #t~string24.offset := #Ultimate.allocOnStack(30);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(9);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(21);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~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(110, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 3 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(80, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(117, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(109, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(112, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(32, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string59.base, #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 1 + #t~string59.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;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); 1558#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 1559#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1717#L82 main_#t~ret38 := valid_product_#res;main_~tmp~4 := main_#t~ret38;havoc main_#t~ret38; 1624#L568 assume 0 != main_~tmp~4; 1547#L544 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1548#L97-1 [2019-11-19 22:27:38,465 INFO L796 eck$LassoCheckResult]: Loop: 1548#L97-1 assume !false; 1643#L968 assume test_~splverifierCounter~0 < 4; 1656#L969 test_~tmp~11 := test_#t~nondet72;havoc test_#t~nondet72; 1657#L977 assume !(0 != test_~tmp~11); 1702#L977-1 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 1576#L987 assume !(0 != test_~tmp___0~3); 1577#L987-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 1585#L997 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1646#L1005-1 assume !(0 != ~pumpRunning~0); 1650#L597 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret41, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1602#L681 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret40, processEnvironment__wrappee__methaneQuery_~tmp~6;havoc processEnvironment__wrappee__methaneQuery_~tmp~6; 1603#L655-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1565#L629-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret60, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1566#L937-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1616#L942-3 isHighWaterLevel_#t~ret60 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret60;havoc isHighWaterLevel_#t~ret60; 1807#L800-9 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~1 := 0; 1732#L800-11 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1710#L806-3 processEnvironment__wrappee__highWaterSensor_#t~ret39 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret39;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39; 1680#L633-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 1567#L604 havoc __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_#t~ret2, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 1612#L897-5 __utac_acc__Specification1_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret1;havoc __utac_acc__Specification1_spec__1_#t~ret1; 1644#L97 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 1548#L97-1 [2019-11-19 22:27:38,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:27:38,465 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-19 22:27:38,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:27:38,466 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040057937] [2019-11-19 22:27:38,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:27:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:27:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:27:38,573 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:27:38,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:27:38,574 INFO L82 PathProgramCache]: Analyzing trace with hash -231328531, now seen corresponding path program 1 times [2019-11-19 22:27:38,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:27:38,575 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374985894] [2019-11-19 22:27:38,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:27:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:27:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:27:38,591 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:27:38,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:27:38,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1021976595, now seen corresponding path program 1 times [2019-11-19 22:27:38,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:27:38,592 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973215217] [2019-11-19 22:27:38,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:27:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:27:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:27:38,675 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:27:38,816 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-11-19 22:28:06,642 WARN L191 SmtUtils]: Spent 27.74 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-19 22:28:20,005 WARN L191 SmtUtils]: Spent 13.36 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-19 22:28:20,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 10:28:20 BoogieIcfgContainer [2019-11-19 22:28:20,074 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 22:28:20,075 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:28:20,075 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:28:20,075 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:28:20,076 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:27:37" (3/4) ... [2019-11-19 22:28:20,079 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 22:28:20,138 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 22:28:20,138 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:28:20,140 INFO L168 Benchmark]: Toolchain (without parser) took 44896.47 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 298.3 MB). Free memory was 961.7 MB in the beginning and 1.2 GB in the end (delta: -219.7 MB). Peak memory consumption was 78.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:28:20,141 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:28:20,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -127.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-11-19 22:28:20,142 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.82 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:28:20,143 INFO L168 Benchmark]: Boogie Preprocessor took 83.41 ms. Allocated memory is still 1.1 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. [2019-11-19 22:28:20,143 INFO L168 Benchmark]: RCFGBuilder took 1119.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 996.8 MB in the end (delta: 85.7 MB). Peak memory consumption was 85.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:28:20,144 INFO L168 Benchmark]: BuchiAutomizer took 42852.96 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 178.8 MB). Free memory was 996.8 MB in the beginning and 1.2 GB in the end (delta: -197.1 MB). Peak memory consumption was 364.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:28:20,145 INFO L168 Benchmark]: Witness Printer took 63.83 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: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:28:20,149 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 671.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -127.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 101.82 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 83.41 ms. Allocated memory is still 1.1 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. * RCFGBuilder took 1119.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 996.8 MB in the end (delta: 85.7 MB). Peak memory consumption was 85.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 42852.96 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 178.8 MB). Free memory was 996.8 MB in the beginning and 1.2 GB in the end (delta: -197.1 MB). Peak memory consumption was 364.4 MB. Max. memory is 11.5 GB. * Witness Printer took 63.83 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: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 419 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 42.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 42.2s. 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 426 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 553 SDtfs, 496 SDslu, 392 SDs, 0 SdLazy, 53 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 967]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=824} State at position 1 is {NULL=0, NULL=0, NULL=23432, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60aaed2a=0, NULL=824, NULL=28595, NULL=0, retValue_acc=0, NULL=28590, methaneLevelCritical=0, tmp___0=0, NULL=0, NULL=0, NULL=19844, retValue_acc=0, NULL=0, tmp___1=0, NULL=19843, tmp___0=0, cleanupTimeShifts=4, NULL=7185, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15c3eebe=0, NULL=23429, NULL=7184, retValue_acc=0, NULL=28592, tmp=0, NULL=23431, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f964e3b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33133456=0, NULL=0, systemActive=1, waterLevel=1, NULL=28594, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4359c44d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29a87286=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48d51e9a=0, NULL=0, \result=0, NULL=28596, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=28589, NULL=28591, \result=0, NULL=19842, tmp=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=19841, tmp=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c73126c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f7e2c47=50, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@625e8b7d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c0f368d=0, NULL=28597, NULL=13013, NULL=0, retValue_acc=1, tmp___0=0, retValue_acc=1, tmp___2=50, tmp=0, NULL=825, NULL=13012, splverifierCounter=0, NULL=0, tmp=1, \result=0, NULL=23430, head=0, NULL=0, NULL=23428, NULL=0, NULL=7186, tmp=0, NULL=0, NULL=0, tmp=0, NULL=13014, NULL=28593} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L284] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L481] int cleanupTimeShifts = 4; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L854] int waterLevel = 1; [L855] int methaneLevelCritical = 0; [L559] int retValue_acc ; [L560] int tmp ; [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L566] tmp = valid_product() [L568] COND TRUE \read(tmp) [L958] int splverifierCounter ; [L959] int tmp ; [L960] int tmp___0 ; [L961] int tmp___1 ; [L962] int tmp___2 ; [L965] splverifierCounter = 0 Loop: [L967] COND TRUE 1 [L969] COND TRUE splverifierCounter < 4 [L975] tmp = __VERIFIER_nondet_int() [L977] COND FALSE !(\read(tmp)) [L985] tmp___0 = __VERIFIER_nondet_int() [L987] COND FALSE !(\read(tmp___0)) [L995] tmp___2 = __VERIFIER_nondet_int() [L997] COND TRUE \read(tmp___2) [L848] systemActive = 1 [L597] COND FALSE !(\read(pumpRunning)) [L604] COND TRUE \read(systemActive) [L678] int tmp ; [L681] COND FALSE !(\read(pumpRunning)) [L652] int tmp ; [L655] COND FALSE !(\read(pumpRunning)) [L626] int tmp ; [L629] COND TRUE ! pumpRunning [L792] int retValue_acc ; [L793] int tmp ; [L794] int tmp___0 ; [L934] int retValue_acc ; [L937] COND TRUE waterLevel < 2 [L938] retValue_acc = 1 [L939] return (retValue_acc); [L798] tmp = isHighWaterSensorDry() [L800] COND TRUE \read(tmp) [L801] tmp___0 = 0 [L805] retValue_acc = tmp___0 [L806] return (retValue_acc); [L631] tmp = isHighWaterLevel() [L633] COND FALSE !(\read(tmp)) [L90] int tmp ; [L91] int tmp___0 ; [L893] int retValue_acc ; [L896] retValue_acc = methaneLevelCritical [L897] return (retValue_acc); [L95] tmp = isMethaneLevelCritical() [L97] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...