./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product15.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product15.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 0293b5fd4bdba9c4dffc69cf3cddef161bbc7b19 .................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 02:24:55,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 02:24:55,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 02:24:55,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 02:24:55,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 02:24:55,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 02:24:55,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 02:24:55,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 02:24:55,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 02:24:55,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 02:24:55,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 02:24:55,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 02:24:55,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 02:24:55,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 02:24:55,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 02:24:55,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 02:24:55,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 02:24:55,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 02:24:55,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 02:24:55,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 02:24:55,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 02:24:55,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 02:24:55,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 02:24:55,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 02:24:55,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 02:24:55,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 02:24:55,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 02:24:55,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 02:24:55,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 02:24:55,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 02:24:55,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 02:24:55,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 02:24:55,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 02:24:55,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 02:24:55,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 02:24:55,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 02:24:55,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 02:24:55,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 02:24:55,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 02:24:55,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 02:24:55,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 02:24:55,496 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 02:24:55,539 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 02:24:55,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 02:24:55,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 02:24:55,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 02:24:55,543 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 02:24:55,544 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 02:24:55,544 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 02:24:55,544 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 02:24:55,546 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 02:24:55,546 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 02:24:55,547 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 02:24:55,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 02:24:55,548 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 02:24:55,548 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 02:24:55,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 02:24:55,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 02:24:55,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 02:24:55,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 02:24:55,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 02:24:55,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 02:24:55,550 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 02:24:55,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 02:24:55,550 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 02:24:55,551 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 02:24:55,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 02:24:55,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 02:24:55,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 02:24:55,552 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 02:24:55,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 02:24:55,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 02:24:55,553 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 02:24:55,553 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 02:24:55,554 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 02:24:55,555 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 -> 0293b5fd4bdba9c4dffc69cf3cddef161bbc7b19 [2020-07-29 02:24:55,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 02:24:55,978 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 02:24:55,981 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 02:24:55,982 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 02:24:55,983 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 02:24:55,984 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product15.cil.c [2020-07-29 02:24:56,060 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13cb9864b/159a9db719cc44709c82e30dcb21909b/FLAGf13051d11 [2020-07-29 02:24:56,599 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 02:24:56,600 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product15.cil.c [2020-07-29 02:24:56,615 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13cb9864b/159a9db719cc44709c82e30dcb21909b/FLAGf13051d11 [2020-07-29 02:24:56,895 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13cb9864b/159a9db719cc44709c82e30dcb21909b [2020-07-29 02:24:56,899 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 02:24:56,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 02:24:56,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 02:24:56,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 02:24:56,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 02:24:56,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:24:56" (1/1) ... [2020-07-29 02:24:56,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7544ab95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:24:56, skipping insertion in model container [2020-07-29 02:24:56,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:24:56" (1/1) ... [2020-07-29 02:24:56,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 02:24:56,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 02:24:57,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:24:57,583 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 02:24:57,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:24:57,729 INFO L208 MainTranslator]: Completed translation [2020-07-29 02:24:57,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:24:57 WrapperNode [2020-07-29 02:24:57,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 02:24:57,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 02:24:57,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 02:24:57,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 02:24:57,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:24:57" (1/1) ... [2020-07-29 02:24:57,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:24:57" (1/1) ... [2020-07-29 02:24:57,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 02:24:57,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 02:24:57,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 02:24:57,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 02:24:57,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:24:57" (1/1) ... [2020-07-29 02:24:57,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:24:57" (1/1) ... [2020-07-29 02:24:57,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:24:57" (1/1) ... [2020-07-29 02:24:57,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:24:57" (1/1) ... [2020-07-29 02:24:57,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:24:57" (1/1) ... [2020-07-29 02:24:57,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:24:57" (1/1) ... [2020-07-29 02:24:57,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:24:57" (1/1) ... [2020-07-29 02:24:57,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 02:24:57,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 02:24:57,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 02:24:57,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 02:24:57,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:24:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:24:57,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 02:24:57,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-29 02:24:57,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 02:24:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 02:24:59,167 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 02:24:59,168 INFO L295 CfgBuilder]: Removed 100 assume(true) statements. [2020-07-29 02:24:59,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:24:59 BoogieIcfgContainer [2020-07-29 02:24:59,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 02:24:59,173 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 02:24:59,173 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 02:24:59,177 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 02:24:59,179 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:24:59,179 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 02:24:56" (1/3) ... [2020-07-29 02:24:59,180 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3917f24f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:24:59, skipping insertion in model container [2020-07-29 02:24:59,180 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:24:59,181 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:24:57" (2/3) ... [2020-07-29 02:24:59,181 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3917f24f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:24:59, skipping insertion in model container [2020-07-29 02:24:59,181 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:24:59,181 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:24:59" (3/3) ... [2020-07-29 02:24:59,183 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product15.cil.c [2020-07-29 02:24:59,240 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 02:24:59,240 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 02:24:59,240 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 02:24:59,240 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 02:24:59,241 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 02:24:59,241 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 02:24:59,241 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 02:24:59,242 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 02:24:59,259 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states. [2020-07-29 02:24:59,301 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2020-07-29 02:24:59,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:24:59,301 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:24:59,310 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:24:59,310 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:24:59,310 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 02:24:59,310 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states. [2020-07-29 02:24:59,321 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2020-07-29 02:24:59,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:24:59,321 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:24:59,322 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:24:59,322 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:24:59,329 INFO L794 eck$LassoCheckResult]: Stem: 21#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 7#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 29#L250true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 63#L258true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 64#L130true assume 0 != main_~tmp~0; 16#L103true havoc test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 41#L273-1true [2020-07-29 02:24:59,330 INFO L796 eck$LassoCheckResult]: Loop: 41#L273-1true assume !false; 20#L479true assume test_~splverifierCounter~0 < 4; 31#L480true test_~tmp~4 := test_#t~nondet33;havoc test_#t~nondet33; 34#L488true assume !(0 != test_~tmp~4); 35#L488-1true test_~tmp___0~1 := test_#t~nondet34;havoc test_#t~nondet34; 24#L498true assume !(0 != test_~tmp___0~1); 27#L498-1true test_~tmp___2~0 := test_#t~nondet35;havoc test_#t~nondet35; 10#L508true assume 0 != test_~tmp___2~0; 49#L514-1true assume !(0 != ~pumpRunning~0); 4#L310true assume !(0 != ~systemActive~0); 57#L317true havoc __utac_acc__Specification1_spec__1_#t~ret12, __utac_acc__Specification1_spec__1_#t~ret13, __utac_acc__Specification1_spec__1_~tmp~1, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 19#L191-1true __utac_acc__Specification1_spec__1_#t~ret12 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~1 := __utac_acc__Specification1_spec__1_#t~ret12;havoc __utac_acc__Specification1_spec__1_#t~ret12; 45#L273true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1); 41#L273-1true [2020-07-29 02:24:59,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:24:59,337 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-07-29 02:24:59,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:24:59,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027047673] [2020-07-29 02:24:59,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:24:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:24:59,629 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:24:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:24:59,777 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:24:59,855 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:24:59,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:24:59,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1673310517, now seen corresponding path program 1 times [2020-07-29 02:24:59,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:24:59,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046499072] [2020-07-29 02:24:59,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:24:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:24:59,873 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:24:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:24:59,881 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:24:59,900 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:24:59,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:24:59,904 INFO L82 PathProgramCache]: Analyzing trace with hash 40968421, now seen corresponding path program 1 times [2020-07-29 02:24:59,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:24:59,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103820458] [2020-07-29 02:24:59,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:24:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:25:00,098 INFO L280 TraceCheckUtils]: 0: Hoare triple {76#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {78#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:25:00,101 INFO L280 TraceCheckUtils]: 1: Hoare triple {78#(<= 1 ~systemActive~0)} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {78#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:25:00,102 INFO L280 TraceCheckUtils]: 2: Hoare triple {78#(<= 1 ~systemActive~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; {78#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:25:00,105 INFO L280 TraceCheckUtils]: 3: Hoare triple {78#(<= 1 ~systemActive~0)} main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {78#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:25:00,107 INFO L280 TraceCheckUtils]: 4: Hoare triple {78#(<= 1 ~systemActive~0)} assume 0 != main_~tmp~0; {78#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:25:00,108 INFO L280 TraceCheckUtils]: 5: Hoare triple {78#(<= 1 ~systemActive~0)} havoc test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {78#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:25:00,109 INFO L280 TraceCheckUtils]: 6: Hoare triple {78#(<= 1 ~systemActive~0)} assume !false; {78#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:25:00,110 INFO L280 TraceCheckUtils]: 7: Hoare triple {78#(<= 1 ~systemActive~0)} assume test_~splverifierCounter~0 < 4; {78#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:25:00,111 INFO L280 TraceCheckUtils]: 8: Hoare triple {78#(<= 1 ~systemActive~0)} test_~tmp~4 := test_#t~nondet33;havoc test_#t~nondet33; {78#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:25:00,112 INFO L280 TraceCheckUtils]: 9: Hoare triple {78#(<= 1 ~systemActive~0)} assume !(0 != test_~tmp~4); {78#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:25:00,113 INFO L280 TraceCheckUtils]: 10: Hoare triple {78#(<= 1 ~systemActive~0)} test_~tmp___0~1 := test_#t~nondet34;havoc test_#t~nondet34; {78#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:25:00,114 INFO L280 TraceCheckUtils]: 11: Hoare triple {78#(<= 1 ~systemActive~0)} assume !(0 != test_~tmp___0~1); {78#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:25:00,115 INFO L280 TraceCheckUtils]: 12: Hoare triple {78#(<= 1 ~systemActive~0)} test_~tmp___2~0 := test_#t~nondet35;havoc test_#t~nondet35; {78#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:25:00,116 INFO L280 TraceCheckUtils]: 13: Hoare triple {78#(<= 1 ~systemActive~0)} assume 0 != test_~tmp___2~0; {78#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:25:00,117 INFO L280 TraceCheckUtils]: 14: Hoare triple {78#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {78#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:25:00,119 INFO L280 TraceCheckUtils]: 15: Hoare triple {78#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {77#false} is VALID [2020-07-29 02:25:00,119 INFO L280 TraceCheckUtils]: 16: Hoare triple {77#false} havoc __utac_acc__Specification1_spec__1_#t~ret12, __utac_acc__Specification1_spec__1_#t~ret13, __utac_acc__Specification1_spec__1_~tmp~1, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; {77#false} is VALID [2020-07-29 02:25:00,119 INFO L280 TraceCheckUtils]: 17: Hoare triple {77#false} __utac_acc__Specification1_spec__1_#t~ret12 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~1 := __utac_acc__Specification1_spec__1_#t~ret12;havoc __utac_acc__Specification1_spec__1_#t~ret12; {77#false} is VALID [2020-07-29 02:25:00,120 INFO L280 TraceCheckUtils]: 18: Hoare triple {77#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1); {77#false} is VALID [2020-07-29 02:25:00,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:25:00,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103820458] [2020-07-29 02:25:00,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:25:00,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-29 02:25:00,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559743025] [2020-07-29 02:25:00,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:25:00,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 02:25:00,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 02:25:00,260 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states. [2020-07-29 02:25:00,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:25:00,585 INFO L93 Difference]: Finished difference Result 130 states and 180 transitions. [2020-07-29 02:25:00,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 02:25:00,587 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 02:25:00,638 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:25:00,641 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 180 transitions. [2020-07-29 02:25:00,653 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 80 [2020-07-29 02:25:00,664 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 116 states and 165 transitions. [2020-07-29 02:25:00,667 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 116 [2020-07-29 02:25:00,668 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 116 [2020-07-29 02:25:00,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 165 transitions. [2020-07-29 02:25:00,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:25:00,671 INFO L688 BuchiCegarLoop]: Abstraction has 116 states and 165 transitions. [2020-07-29 02:25:00,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 165 transitions. [2020-07-29 02:25:00,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-07-29 02:25:00,715 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:25:00,716 INFO L82 GeneralOperation]: Start isEquivalent. First operand 116 states and 165 transitions. Second operand 114 states. [2020-07-29 02:25:00,717 INFO L74 IsIncluded]: Start isIncluded. First operand 116 states and 165 transitions. Second operand 114 states. [2020-07-29 02:25:00,719 INFO L87 Difference]: Start difference. First operand 116 states and 165 transitions. Second operand 114 states. [2020-07-29 02:25:00,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:25:00,727 INFO L93 Difference]: Finished difference Result 116 states and 165 transitions. [2020-07-29 02:25:00,728 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 165 transitions. [2020-07-29 02:25:00,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:25:00,731 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:25:00,731 INFO L74 IsIncluded]: Start isIncluded. First operand 114 states. Second operand 116 states and 165 transitions. [2020-07-29 02:25:00,732 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 116 states and 165 transitions. [2020-07-29 02:25:00,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:25:00,742 INFO L93 Difference]: Finished difference Result 116 states and 165 transitions. [2020-07-29 02:25:00,742 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 165 transitions. [2020-07-29 02:25:00,743 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:25:00,743 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:25:00,744 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:25:00,744 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:25:00,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-07-29 02:25:00,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2020-07-29 02:25:00,752 INFO L711 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2020-07-29 02:25:00,752 INFO L591 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2020-07-29 02:25:00,752 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 02:25:00,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states and 162 transitions. [2020-07-29 02:25:00,755 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 80 [2020-07-29 02:25:00,755 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:25:00,755 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:25:00,756 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:25:00,756 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:25:00,756 INFO L794 eck$LassoCheckResult]: Stem: 240#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 217#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 218#L250 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 249#L258 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 280#L130 assume 0 != main_~tmp~0; 231#L103 havoc test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 220#L273-1 [2020-07-29 02:25:00,757 INFO L796 eck$LassoCheckResult]: Loop: 220#L273-1 assume !false; 238#L479 assume test_~splverifierCounter~0 < 4; 239#L480 test_~tmp~4 := test_#t~nondet33;havoc test_#t~nondet33; 309#L488 assume !(0 != test_~tmp~4); 257#L488-1 test_~tmp___0~1 := test_#t~nondet34;havoc test_#t~nondet34; 243#L498 assume !(0 != test_~tmp___0~1); 244#L498-1 test_~tmp___2~0 := test_#t~nondet35;havoc test_#t~nondet35; 221#L508 assume 0 != test_~tmp___2~0; 222#L514-1 assume !(0 != ~pumpRunning~0); 211#L310 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret14, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 212#L342 assume !(0 != ~pumpRunning~0); 269#L317 havoc __utac_acc__Specification1_spec__1_#t~ret12, __utac_acc__Specification1_spec__1_#t~ret13, __utac_acc__Specification1_spec__1_~tmp~1, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 236#L191-1 __utac_acc__Specification1_spec__1_#t~ret12 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~1 := __utac_acc__Specification1_spec__1_#t~ret12;havoc __utac_acc__Specification1_spec__1_#t~ret12; 237#L273 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1); 220#L273-1 [2020-07-29 02:25:00,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:25:00,757 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-07-29 02:25:00,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:25:00,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518466010] [2020-07-29 02:25:00,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:25:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:25:00,803 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:25:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:25:00,845 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:25:00,859 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:25:00,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:25:00,860 INFO L82 PathProgramCache]: Analyzing trace with hash -353546757, now seen corresponding path program 1 times [2020-07-29 02:25:00,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:25:00,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79681170] [2020-07-29 02:25:00,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:25:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:25:00,866 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:25:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:25:00,869 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:25:00,873 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:25:00,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:25:00,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1249492769, now seen corresponding path program 1 times [2020-07-29 02:25:00,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:25:00,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914812262] [2020-07-29 02:25:00,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:25:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:25:00,915 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:25:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:25:00,958 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:25:00,977 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:25:48,493 WARN L193 SmtUtils]: Spent 47.40 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2020-07-29 02:26:24,692 WARN L193 SmtUtils]: Spent 35.90 s on a formula simplification that was a NOOP. DAG size: 400 [2020-07-29 02:26:24,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 02:26:24 BoogieIcfgContainer [2020-07-29 02:26:24,949 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 02:26:24,949 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 02:26:24,950 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 02:26:24,950 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 02:26:24,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:24:59" (3/4) ... [2020-07-29 02:26:24,954 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 02:26:25,018 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 02:26:25,018 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 02:26:25,021 INFO L168 Benchmark]: Toolchain (without parser) took 88120.56 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 268.4 MB). Free memory was 958.9 MB in the beginning and 1.0 GB in the end (delta: -59.0 MB). Peak memory consumption was 209.5 MB. Max. memory is 11.5 GB. [2020-07-29 02:26:25,023 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:26:25,025 INFO L168 Benchmark]: CACSL2BoogieTranslator took 827.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 958.9 MB in the beginning and 1.1 GB in the end (delta: -102.5 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2020-07-29 02:26:25,027 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.54 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2020-07-29 02:26:25,028 INFO L168 Benchmark]: Boogie Preprocessor took 49.48 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. [2020-07-29 02:26:25,028 INFO L168 Benchmark]: RCFGBuilder took 1285.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 931.1 MB in the end (delta: 123.3 MB). Peak memory consumption was 123.3 MB. Max. memory is 11.5 GB. [2020-07-29 02:26:25,030 INFO L168 Benchmark]: BuchiAutomizer took 85776.12 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 181.9 MB). Free memory was 931.1 MB in the beginning and 1.0 GB in the end (delta: -96.2 MB). Peak memory consumption was 343.9 MB. Max. memory is 11.5 GB. [2020-07-29 02:26:25,033 INFO L168 Benchmark]: Witness Printer took 69.15 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2020-07-29 02:26:25,037 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 827.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 958.9 MB in the beginning and 1.1 GB in the end (delta: -102.5 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 105.54 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.48 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. * RCFGBuilder took 1285.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 931.1 MB in the end (delta: 123.3 MB). Peak memory consumption was 123.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 85776.12 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 181.9 MB). Free memory was 931.1 MB in the beginning and 1.0 GB in the end (delta: -96.2 MB). Peak memory consumption was 343.9 MB. Max. memory is 11.5 GB. * Witness Printer took 69.15 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 114 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 85.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 85.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 114 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 92 SDtfs, 76 SDslu, 81 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 478]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=28093} State at position 1 is {retValue_acc=0, NULL=0, NULL=0, NULL=77972, NULL=37450, retValue_acc=0, NULL=28093, NULL=0, NULL=37453, NULL=54206, methaneLevelCritical=0, NULL=77974, NULL=0, tmp=0, NULL=0, NULL=0, NULL=0, NULL=37449, NULL=0, NULL=54215, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c62f5a3=0, tmp___1=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=54219, tmp___0=0, NULL=54217, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6604896f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30a4b87f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12ee6252=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25850e31=42, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@276cccaf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e7ed7cd=0, NULL=0, systemActive=1, waterLevel=1, NULL=37452, NULL=0, NULL=0, NULL=37455, NULL=0, NULL=37454, NULL=0, NULL=0, NULL=0, NULL=0, NULL=54214, \result=1, NULL=77973, head=0, pumpRunning=0, tmp=1, NULL=54212, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41d3862a=0, NULL=28094, tmp=0, NULL=0, retValue_acc=1, NULL=54211, NULL=54213, tmp___2=42, NULL=54209, tmp___0=0, NULL=54216, splverifierCounter=0, NULL=0, \result=0, NULL=54218, NULL=54210, tmp=0, head=0, NULL=0, NULL=0, NULL=54208, NULL=0, NULL=0, NULL=54207, NULL=0, NULL=37451} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L148] int waterLevel = 1; [L149] int methaneLevelCritical = 0; [L303] int pumpRunning = 0; [L304] int systemActive = 1; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L254] int retValue_acc ; [L257] retValue_acc = 1 [L258] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L469] int splverifierCounter ; [L470] int tmp ; [L471] int tmp___0 ; [L472] int tmp___1 ; [L473] int tmp___2 ; [L476] splverifierCounter = 0 Loop: [L478] COND TRUE 1 [L480] COND TRUE splverifierCounter < 4 [L486] tmp = __VERIFIER_nondet_int() [L488] COND FALSE !(\read(tmp)) [L496] tmp___0 = __VERIFIER_nondet_int() [L498] COND FALSE !(\read(tmp___0)) [L506] tmp___2 = __VERIFIER_nondet_int() [L508] COND TRUE \read(tmp___2) [L310] COND FALSE !(\read(pumpRunning)) [L317] COND TRUE \read(systemActive) [L339] int tmp ; [L342] COND FALSE !(\read(pumpRunning)) [L266] int tmp ; [L267] int tmp___0 ; [L187] int retValue_acc ; [L190] retValue_acc = methaneLevelCritical [L191] return (retValue_acc); [L271] tmp = isMethaneLevelCritical() [L273] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...