./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product44.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_product44.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 b18fc9f0044b48e81511337a91deb94a0dfeec26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:28:35,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 02:28:35,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 02:28:35,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 02:28:35,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 02:28:35,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 02:28:35,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 02:28:35,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 02:28:35,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 02:28:35,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 02:28:35,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 02:28:35,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 02:28:35,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 02:28:35,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 02:28:35,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 02:28:35,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 02:28:35,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 02:28:35,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 02:28:35,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 02:28:35,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 02:28:35,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 02:28:35,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 02:28:35,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 02:28:35,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 02:28:35,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 02:28:35,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 02:28:35,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 02:28:35,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 02:28:35,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 02:28:35,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 02:28:35,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 02:28:35,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 02:28:35,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 02:28:35,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 02:28:35,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 02:28:35,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 02:28:35,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 02:28:35,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 02:28:35,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 02:28:35,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 02:28:35,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 02:28:35,368 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 02:28:35,387 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 02:28:35,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 02:28:35,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 02:28:35,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 02:28:35,389 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 02:28:35,389 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 02:28:35,390 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 02:28:35,390 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 02:28:35,390 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 02:28:35,390 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 02:28:35,390 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 02:28:35,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 02:28:35,391 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 02:28:35,391 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 02:28:35,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 02:28:35,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 02:28:35,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 02:28:35,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 02:28:35,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 02:28:35,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 02:28:35,393 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 02:28:35,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 02:28:35,393 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 02:28:35,393 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 02:28:35,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 02:28:35,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 02:28:35,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 02:28:35,394 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 02:28:35,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 02:28:35,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 02:28:35,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 02:28:35,395 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 02:28:35,396 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 02:28:35,396 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 -> b18fc9f0044b48e81511337a91deb94a0dfeec26 [2020-07-29 02:28:35,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 02:28:35,711 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 02:28:35,714 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 02:28:35,716 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 02:28:35,716 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 02:28:35,717 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2020-07-29 02:28:35,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a1215975/58179202337b4453a64530a406fa3f37/FLAG7dfd6ad17 [2020-07-29 02:28:36,347 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 02:28:36,348 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2020-07-29 02:28:36,365 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a1215975/58179202337b4453a64530a406fa3f37/FLAG7dfd6ad17 [2020-07-29 02:28:36,699 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a1215975/58179202337b4453a64530a406fa3f37 [2020-07-29 02:28:36,702 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 02:28:36,706 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 02:28:36,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 02:28:36,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 02:28:36,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 02:28:36,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:28:36" (1/1) ... [2020-07-29 02:28:36,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5f70b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:28:36, skipping insertion in model container [2020-07-29 02:28:36,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:28:36" (1/1) ... [2020-07-29 02:28:36,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 02:28:36,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 02:28:37,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:28:37,302 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 02:28:37,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:28:37,426 INFO L208 MainTranslator]: Completed translation [2020-07-29 02:28:37,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:28:37 WrapperNode [2020-07-29 02:28:37,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 02:28:37,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 02:28:37,428 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 02:28:37,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 02:28:37,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:28:37" (1/1) ... [2020-07-29 02:28:37,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:28:37" (1/1) ... [2020-07-29 02:28:37,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 02:28:37,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 02:28:37,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 02:28:37,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 02:28:37,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:28:37" (1/1) ... [2020-07-29 02:28:37,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:28:37" (1/1) ... [2020-07-29 02:28:37,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:28:37" (1/1) ... [2020-07-29 02:28:37,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:28:37" (1/1) ... [2020-07-29 02:28:37,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:28:37" (1/1) ... [2020-07-29 02:28:37,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:28:37" (1/1) ... [2020-07-29 02:28:37,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:28:37" (1/1) ... [2020-07-29 02:28:37,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 02:28:37,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 02:28:37,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 02:28:37,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 02:28:37,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:28:37" (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 02:28:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 02:28:37,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-29 02:28:37,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 02:28:37,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 02:28:38,976 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 02:28:38,977 INFO L295 CfgBuilder]: Removed 120 assume(true) statements. [2020-07-29 02:28:38,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:28:38 BoogieIcfgContainer [2020-07-29 02:28:38,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 02:28:38,983 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 02:28:38,983 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 02:28:38,987 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 02:28:38,988 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:28:38,988 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 02:28:36" (1/3) ... [2020-07-29 02:28:38,989 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ab2817d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:28:38, skipping insertion in model container [2020-07-29 02:28:38,990 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:28:38,990 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:28:37" (2/3) ... [2020-07-29 02:28:38,990 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ab2817d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:28:38, skipping insertion in model container [2020-07-29 02:28:38,991 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:28:38,991 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:28:38" (3/3) ... [2020-07-29 02:28:38,993 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product44.cil.c [2020-07-29 02:28:39,046 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 02:28:39,046 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 02:28:39,047 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 02:28:39,047 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 02:28:39,047 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 02:28:39,047 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 02:28:39,048 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 02:28:39,048 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 02:28:39,065 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2020-07-29 02:28:39,110 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-07-29 02:28:39,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:28:39,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:28:39,119 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:28:39,119 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:28:39,119 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 02:28:39,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2020-07-29 02:28:39,133 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-07-29 02:28:39,134 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:28:39,134 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:28:39,135 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:28:39,135 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:28:39,142 INFO L794 eck$LassoCheckResult]: Stem: 31#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 11#L-1true havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 41#L838true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 51#L846true main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 47#L933true assume 0 != main_~tmp~8; 3#L910true havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 71#L795-1true [2020-07-29 02:28:39,143 INFO L796 eck$LassoCheckResult]: Loop: 71#L795-1true assume !false; 46#L432true assume test_~splverifierCounter~0 < 4; 68#L433true test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 73#L441true assume !(0 != test_~tmp~3); 75#L441-1true test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 52#L451true assume !(0 != test_~tmp___0~0); 55#L451-1true test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 22#L461true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 27#L469-1true assume !(0 != ~pumpRunning~0); 72#L506true assume !(0 != ~systemActive~0); 58#L513true havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 63#L736-1true __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; 69#L795true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 71#L795-1true [2020-07-29 02:28:39,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:28:39,160 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-07-29 02:28:39,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:28:39,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719042613] [2020-07-29 02:28:39,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:28:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:28:39,403 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:28:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:28:39,492 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:28:39,532 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:28:39,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:28:39,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1671648180, now seen corresponding path program 1 times [2020-07-29 02:28:39,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:28:39,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923083885] [2020-07-29 02:28:39,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:28:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:28:39,637 INFO L280 TraceCheckUtils]: 0: Hoare triple {92#true} assume !false; {92#true} is VALID [2020-07-29 02:28:39,638 INFO L280 TraceCheckUtils]: 1: Hoare triple {92#true} assume test_~splverifierCounter~0 < 4; {92#true} is VALID [2020-07-29 02:28:39,639 INFO L280 TraceCheckUtils]: 2: Hoare triple {92#true} test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; {92#true} is VALID [2020-07-29 02:28:39,639 INFO L280 TraceCheckUtils]: 3: Hoare triple {92#true} assume !(0 != test_~tmp~3); {92#true} is VALID [2020-07-29 02:28:39,640 INFO L280 TraceCheckUtils]: 4: Hoare triple {92#true} test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; {92#true} is VALID [2020-07-29 02:28:39,640 INFO L280 TraceCheckUtils]: 5: Hoare triple {92#true} assume !(0 != test_~tmp___0~0); {92#true} is VALID [2020-07-29 02:28:39,641 INFO L280 TraceCheckUtils]: 6: Hoare triple {92#true} test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; {92#true} is VALID [2020-07-29 02:28:39,643 INFO L280 TraceCheckUtils]: 7: Hoare triple {92#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {94#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:28:39,644 INFO L280 TraceCheckUtils]: 8: Hoare triple {94#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {94#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:28:39,646 INFO L280 TraceCheckUtils]: 9: Hoare triple {94#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {93#false} is VALID [2020-07-29 02:28:39,646 INFO L280 TraceCheckUtils]: 10: Hoare triple {93#false} havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {93#false} is VALID [2020-07-29 02:28:39,646 INFO L280 TraceCheckUtils]: 11: Hoare triple {93#false} __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; {93#false} is VALID [2020-07-29 02:28:39,647 INFO L280 TraceCheckUtils]: 12: Hoare triple {93#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); {93#false} is VALID [2020-07-29 02:28:39,650 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 02:28:39,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923083885] [2020-07-29 02:28:39,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:28:39,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 02:28:39,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775313548] [2020-07-29 02:28:39,660 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 02:28:39,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:28:39,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 02:28:39,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 02:28:39,679 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2020-07-29 02:28:40,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:28:40,016 INFO L93 Difference]: Finished difference Result 166 states and 234 transitions. [2020-07-29 02:28:40,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 02:28:40,018 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 02:28:40,043 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:28:40,046 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 234 transitions. [2020-07-29 02:28:40,062 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 106 [2020-07-29 02:28:40,075 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 152 states and 219 transitions. [2020-07-29 02:28:40,078 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 152 [2020-07-29 02:28:40,079 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 152 [2020-07-29 02:28:40,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 152 states and 219 transitions. [2020-07-29 02:28:40,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:28:40,081 INFO L688 BuchiCegarLoop]: Abstraction has 152 states and 219 transitions. [2020-07-29 02:28:40,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states and 219 transitions. [2020-07-29 02:28:40,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2020-07-29 02:28:40,127 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:28:40,128 INFO L82 GeneralOperation]: Start isEquivalent. First operand 152 states and 219 transitions. Second operand 150 states. [2020-07-29 02:28:40,129 INFO L74 IsIncluded]: Start isIncluded. First operand 152 states and 219 transitions. Second operand 150 states. [2020-07-29 02:28:40,131 INFO L87 Difference]: Start difference. First operand 152 states and 219 transitions. Second operand 150 states. [2020-07-29 02:28:40,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:28:40,143 INFO L93 Difference]: Finished difference Result 152 states and 219 transitions. [2020-07-29 02:28:40,144 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 219 transitions. [2020-07-29 02:28:40,147 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:28:40,147 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:28:40,148 INFO L74 IsIncluded]: Start isIncluded. First operand 150 states. Second operand 152 states and 219 transitions. [2020-07-29 02:28:40,148 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 152 states and 219 transitions. [2020-07-29 02:28:40,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:28:40,160 INFO L93 Difference]: Finished difference Result 152 states and 219 transitions. [2020-07-29 02:28:40,160 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 219 transitions. [2020-07-29 02:28:40,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:28:40,163 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:28:40,163 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:28:40,163 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:28:40,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-07-29 02:28:40,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2020-07-29 02:28:40,177 INFO L711 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2020-07-29 02:28:40,177 INFO L591 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2020-07-29 02:28:40,177 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 02:28:40,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 216 transitions. [2020-07-29 02:28:40,181 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2020-07-29 02:28:40,181 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:28:40,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:28:40,182 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:28:40,183 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:28:40,183 INFO L794 eck$LassoCheckResult]: Stem: 306#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 275#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 276#L838 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 318#L846 main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 325#L933 assume 0 != main_~tmp~8; 261#L910 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 262#L795-1 [2020-07-29 02:28:40,184 INFO L796 eck$LassoCheckResult]: Loop: 262#L795-1 assume !false; 322#L432 assume test_~splverifierCounter~0 < 4; 323#L433 test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 345#L441 assume !(0 != test_~tmp~3); 344#L441-1 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 330#L451 assume !(0 != test_~tmp___0~0); 331#L451-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 291#L461 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 292#L469-1 assume !(0 != ~pumpRunning~0); 300#L506 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 326#L538 assume !(0 == ~pumpRunning~0); 304#L513 havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 338#L736-1 __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; 340#L795 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 262#L795-1 [2020-07-29 02:28:40,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:28:40,184 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-07-29 02:28:40,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:28:40,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599249442] [2020-07-29 02:28:40,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:28:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:28:40,292 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:28:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:28:40,371 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:28:40,387 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:28:40,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:28:40,389 INFO L82 PathProgramCache]: Analyzing trace with hash -323255269, now seen corresponding path program 1 times [2020-07-29 02:28:40,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:28:40,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255084555] [2020-07-29 02:28:40,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:28:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:28:40,415 INFO L280 TraceCheckUtils]: 0: Hoare triple {720#true} assume !false; {720#true} is VALID [2020-07-29 02:28:40,416 INFO L280 TraceCheckUtils]: 1: Hoare triple {720#true} assume test_~splverifierCounter~0 < 4; {720#true} is VALID [2020-07-29 02:28:40,416 INFO L280 TraceCheckUtils]: 2: Hoare triple {720#true} test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; {720#true} is VALID [2020-07-29 02:28:40,417 INFO L280 TraceCheckUtils]: 3: Hoare triple {720#true} assume !(0 != test_~tmp~3); {720#true} is VALID [2020-07-29 02:28:40,417 INFO L280 TraceCheckUtils]: 4: Hoare triple {720#true} test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; {720#true} is VALID [2020-07-29 02:28:40,417 INFO L280 TraceCheckUtils]: 5: Hoare triple {720#true} assume !(0 != test_~tmp___0~0); {720#true} is VALID [2020-07-29 02:28:40,417 INFO L280 TraceCheckUtils]: 6: Hoare triple {720#true} test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; {720#true} is VALID [2020-07-29 02:28:40,418 INFO L280 TraceCheckUtils]: 7: Hoare triple {720#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {720#true} is VALID [2020-07-29 02:28:40,419 INFO L280 TraceCheckUtils]: 8: Hoare triple {720#true} assume !(0 != ~pumpRunning~0); {722#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 02:28:40,420 INFO L280 TraceCheckUtils]: 9: Hoare triple {722#(= 0 ~pumpRunning~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {722#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 02:28:40,421 INFO L280 TraceCheckUtils]: 10: Hoare triple {722#(= 0 ~pumpRunning~0)} assume !(0 == ~pumpRunning~0); {721#false} is VALID [2020-07-29 02:28:40,422 INFO L280 TraceCheckUtils]: 11: Hoare triple {721#false} havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {721#false} is VALID [2020-07-29 02:28:40,422 INFO L280 TraceCheckUtils]: 12: Hoare triple {721#false} __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; {721#false} is VALID [2020-07-29 02:28:40,422 INFO L280 TraceCheckUtils]: 13: Hoare triple {721#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); {721#false} is VALID [2020-07-29 02:28:40,424 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 02:28:40,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255084555] [2020-07-29 02:28:40,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:28:40,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 02:28:40,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723589838] [2020-07-29 02:28:40,426 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 02:28:40,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:28:40,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 02:28:40,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 02:28:40,427 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. cyclomatic complexity: 69 Second operand 3 states. [2020-07-29 02:28:40,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:28:40,720 INFO L93 Difference]: Finished difference Result 233 states and 322 transitions. [2020-07-29 02:28:40,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 02:28:40,720 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 02:28:40,739 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:28:40,740 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 233 states and 322 transitions. [2020-07-29 02:28:40,754 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 167 [2020-07-29 02:28:40,767 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 233 states to 233 states and 322 transitions. [2020-07-29 02:28:40,768 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 233 [2020-07-29 02:28:40,769 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 233 [2020-07-29 02:28:40,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 233 states and 322 transitions. [2020-07-29 02:28:40,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:28:40,771 INFO L688 BuchiCegarLoop]: Abstraction has 233 states and 322 transitions. [2020-07-29 02:28:40,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states and 322 transitions. [2020-07-29 02:28:40,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2020-07-29 02:28:40,785 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:28:40,785 INFO L82 GeneralOperation]: Start isEquivalent. First operand 233 states and 322 transitions. Second operand 233 states. [2020-07-29 02:28:40,786 INFO L74 IsIncluded]: Start isIncluded. First operand 233 states and 322 transitions. Second operand 233 states. [2020-07-29 02:28:40,786 INFO L87 Difference]: Start difference. First operand 233 states and 322 transitions. Second operand 233 states. [2020-07-29 02:28:40,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:28:40,799 INFO L93 Difference]: Finished difference Result 233 states and 322 transitions. [2020-07-29 02:28:40,799 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 322 transitions. [2020-07-29 02:28:40,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:28:40,801 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:28:40,802 INFO L74 IsIncluded]: Start isIncluded. First operand 233 states. Second operand 233 states and 322 transitions. [2020-07-29 02:28:40,802 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 233 states and 322 transitions. [2020-07-29 02:28:40,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:28:40,815 INFO L93 Difference]: Finished difference Result 233 states and 322 transitions. [2020-07-29 02:28:40,815 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 322 transitions. [2020-07-29 02:28:40,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:28:40,816 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:28:40,817 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:28:40,817 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:28:40,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-07-29 02:28:40,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 322 transitions. [2020-07-29 02:28:40,827 INFO L711 BuchiCegarLoop]: Abstraction has 233 states and 322 transitions. [2020-07-29 02:28:40,827 INFO L591 BuchiCegarLoop]: Abstraction has 233 states and 322 transitions. [2020-07-29 02:28:40,827 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-29 02:28:40,828 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 233 states and 322 transitions. [2020-07-29 02:28:40,830 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 167 [2020-07-29 02:28:40,830 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:28:40,830 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:28:40,831 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:28:40,831 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] [2020-07-29 02:28:40,832 INFO L794 eck$LassoCheckResult]: Stem: 999#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 969#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 970#L838 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1011#L846 main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 1021#L933 assume 0 != main_~tmp~8; 956#L910 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 957#L795-1 [2020-07-29 02:28:40,833 INFO L796 eck$LassoCheckResult]: Loop: 957#L795-1 assume !false; 1018#L432 assume test_~splverifierCounter~0 < 4; 1019#L433 test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 1048#L441 assume !(0 != test_~tmp~3); 1047#L441-1 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 1027#L451 assume !(0 != test_~tmp___0~0); 1028#L451-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 983#L461 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 984#L469-1 assume !(0 != ~pumpRunning~0); 994#L506 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 1022#L538 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1000#L776 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1001#L781 isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; 971#L658 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 972#L658-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 973#L664 processEnvironment_#t~ret39 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret39;havoc processEnvironment_#t~ret39; 1110#L542 assume !(0 != processEnvironment_~tmp~4); 1038#L513 havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1039#L736-1 __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; 1049#L795 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 957#L795-1 [2020-07-29 02:28:40,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:28:40,833 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-07-29 02:28:40,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:28:40,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459896624] [2020-07-29 02:28:40,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:28:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:28:40,878 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:28:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:28:40,920 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:28:40,935 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:28:40,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:28:40,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1551152025, now seen corresponding path program 1 times [2020-07-29 02:28:40,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:28:40,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309312575] [2020-07-29 02:28:40,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:28:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:28:40,945 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:28:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:28:40,950 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:28:40,956 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:28:40,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:28:40,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1536440051, now seen corresponding path program 1 times [2020-07-29 02:28:40,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:28:40,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068243904] [2020-07-29 02:28:40,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:28:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:28:41,042 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:28:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:28:41,096 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:28:41,121 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:28:41,252 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-07-29 02:29:28,924 WARN L193 SmtUtils]: Spent 47.41 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2020-07-29 02:30:12,713 WARN L193 SmtUtils]: Spent 43.52 s on a formula simplification that was a NOOP. DAG size: 400 [2020-07-29 02:30:12,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 02:30:12 BoogieIcfgContainer [2020-07-29 02:30:12,874 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 02:30:12,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 02:30:12,875 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 02:30:12,876 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 02:30:12,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:28:38" (3/4) ... [2020-07-29 02:30:12,880 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 02:30:12,949 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 02:30:12,949 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 02:30:12,956 INFO L168 Benchmark]: Toolchain (without parser) took 96247.44 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 321.4 MB). Free memory was 956.2 MB in the beginning and 992.2 MB in the end (delta: -36.0 MB). Peak memory consumption was 285.4 MB. Max. memory is 11.5 GB. [2020-07-29 02:30:12,957 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:30:12,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 720.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -147.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2020-07-29 02:30:12,958 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:30:12,960 INFO L168 Benchmark]: Boogie Preprocessor took 47.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-29 02:30:12,961 INFO L168 Benchmark]: RCFGBuilder took 1414.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 965.2 MB in the end (delta: 126.3 MB). Peak memory consumption was 126.3 MB. Max. memory is 11.5 GB. [2020-07-29 02:30:12,961 INFO L168 Benchmark]: BuchiAutomizer took 93891.68 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 192.4 MB). Free memory was 965.2 MB in the beginning and 992.2 MB in the end (delta: -27.0 MB). Peak memory consumption was 336.4 MB. Max. memory is 11.5 GB. [2020-07-29 02:30:12,963 INFO L168 Benchmark]: Witness Printer took 74.12 ms. Allocated memory is still 1.4 GB. Free memory is still 992.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:30:12,968 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 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 720.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -147.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 91.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1414.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 965.2 MB in the end (delta: 126.3 MB). Peak memory consumption was 126.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 93891.68 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 192.4 MB). Free memory was 965.2 MB in the beginning and 992.2 MB in the end (delta: -27.0 MB). Peak memory consumption was 336.4 MB. Max. memory is 11.5 GB. * Witness Printer took 74.12 ms. Allocated memory is still 1.4 GB. Free memory is still 992.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 233 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 93.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 92.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 233 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 230 SDtfs, 210 SDslu, 158 SDs, 0 SdLazy, 32 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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: 431]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=13380} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=13394, NULL=13380, NULL=0, NULL=0, NULL=0, NULL=13401, methaneLevelCritical=0, retValue_acc=1, tmp___0=0, retValue_acc=0, tmp=0, NULL=0, NULL=0, NULL=13399, tmp___1=0, NULL=13384, NULL=13386, tmp___0=0, NULL=13383, NULL=13385, cleanupTimeShifts=4, NULL=13390, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42cb4b39=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58adb6c8=0, NULL=13397, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f0d6ef=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@628228d3=0, NULL=13398, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72098caa=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, retValue_acc=0, NULL=0, \result=0, NULL=13396, tmp___0=0, NULL=13403, NULL=0, NULL=0, retValue_acc=0, NULL=0, \result=1, NULL=13382, head=0, pumpRunning=0, retValue_acc=1, NULL=13393, NULL=13404, \result=0, NULL=13405, tmp=0, NULL=0, NULL=13400, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39bf6f72=0, NULL=0, \result=1, NULL=13387, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6915ea5a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@571cc209=0, tmp___2=56, NULL=13389, tmp=1, splverifierCounter=0, \result=0, head=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3898f772=0, NULL=0, NULL=13381, NULL=13388, NULL=0, NULL=13391, NULL=0, NULL=0, NULL=13392, NULL=13402, NULL=13395} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L218] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L498] int pumpRunning = 0; [L499] int systemActive = 1; [L693] int waterLevel = 1; [L694] int methaneLevelCritical = 0; [L851] int cleanupTimeShifts = 4; [L924] int retValue_acc ; [L925] int tmp ; [L842] int retValue_acc ; [L845] retValue_acc = 1 [L846] return (retValue_acc); [L931] tmp = valid_product() [L933] COND TRUE \read(tmp) [L422] int splverifierCounter ; [L423] int tmp ; [L424] int tmp___0 ; [L425] int tmp___1 ; [L426] int tmp___2 ; [L429] splverifierCounter = 0 Loop: [L431] COND TRUE 1 [L433] COND TRUE splverifierCounter < 4 [L439] tmp = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp)) [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___0)) [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L687] systemActive = 1 [L506] COND FALSE !(\read(pumpRunning)) [L513] COND TRUE \read(systemActive) [L535] int tmp ; [L538] COND TRUE ! pumpRunning [L650] int retValue_acc ; [L651] int tmp ; [L652] int tmp___0 ; [L773] int retValue_acc ; [L776] COND TRUE waterLevel < 2 [L777] retValue_acc = 1 [L778] return (retValue_acc); [L656] tmp = isHighWaterSensorDry() [L658] COND TRUE \read(tmp) [L659] tmp___0 = 0 [L663] retValue_acc = tmp___0 [L664] return (retValue_acc); [L540] tmp = isHighWaterLevel() [L542] COND FALSE !(\read(tmp)) [L788] int tmp ; [L789] int tmp___0 ; [L732] int retValue_acc ; [L735] retValue_acc = methaneLevelCritical [L736] return (retValue_acc); [L793] tmp = isMethaneLevelCritical() [L795] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...