./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product42.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 c0851c41d1dd56ed840a839dd5bb938ccfe6bf65 ........................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:37:53,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:37:53,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:37:53,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:37:53,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:37:53,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:37:53,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:37:53,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:37:53,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:37:53,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:37:53,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:37:53,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:37:53,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:37:53,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:37:53,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:37:53,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:37:53,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:37:53,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:37:53,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:37:53,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:37:53,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:37:53,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:37:53,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:37:53,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:37:53,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:37:53,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:37:53,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:37:53,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:37:53,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:37:53,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:37:53,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:37:53,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:37:53,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:37:53,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:37:53,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:37:53,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:37:53,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:37:53,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:37:53,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:37:53,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:37:53,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:37:53,432 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:37:53,468 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:37:53,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:37:53,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:37:53,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:37:53,470 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:37:53,470 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:37:53,470 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:37:53,470 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:37:53,471 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:37:53,471 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:37:53,471 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:37:53,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:37:53,471 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:37:53,473 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:37:53,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:37:53,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:37:53,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:37:53,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:37:53,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:37:53,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:37:53,475 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:37:53,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:37:53,475 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:37:53,475 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:37:53,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:37:53,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:37:53,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:37:53,476 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:37:53,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:37:53,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:37:53,477 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:37:53,479 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:37:53,479 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 -> c0851c41d1dd56ed840a839dd5bb938ccfe6bf65 [2019-11-28 03:37:53,769 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:37:53,786 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:37:53,790 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:37:53,792 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:37:53,792 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:37:53,793 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2019-11-28 03:37:53,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab395bbb7/46ee8316f5b04d66a3b1877a620fc3ff/FLAG61b9aee0a [2019-11-28 03:37:54,388 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:37:54,389 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2019-11-28 03:37:54,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab395bbb7/46ee8316f5b04d66a3b1877a620fc3ff/FLAG61b9aee0a [2019-11-28 03:37:54,733 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab395bbb7/46ee8316f5b04d66a3b1877a620fc3ff [2019-11-28 03:37:54,737 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:37:54,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:37:54,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:37:54,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:37:54,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:37:54,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:37:54" (1/1) ... [2019-11-28 03:37:54,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@564c4a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:54, skipping insertion in model container [2019-11-28 03:37:54,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:37:54" (1/1) ... [2019-11-28 03:37:54,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:37:54,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:37:55,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:37:55,240 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:37:55,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:37:55,376 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:37:55,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:55 WrapperNode [2019-11-28 03:37:55,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:37:55,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:37:55,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:37:55,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:37:55,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:55" (1/1) ... [2019-11-28 03:37:55,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:55" (1/1) ... [2019-11-28 03:37:55,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:37:55,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:37:55,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:37:55,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:37:55,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:55" (1/1) ... [2019-11-28 03:37:55,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:55" (1/1) ... [2019-11-28 03:37:55,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:55" (1/1) ... [2019-11-28 03:37:55,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:55" (1/1) ... [2019-11-28 03:37:55,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:55" (1/1) ... [2019-11-28 03:37:55,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:55" (1/1) ... [2019-11-28 03:37:55,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:55" (1/1) ... [2019-11-28 03:37:55,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:37:55,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:37:55,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:37:55,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:37:55,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:37:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:37:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 03:37:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:37:55,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:37:56,282 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:37:56,282 INFO L297 CfgBuilder]: Removed 116 assume(true) statements. [2019-11-28 03:37:56,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:37:56 BoogieIcfgContainer [2019-11-28 03:37:56,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:37:56,284 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:37:56,284 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:37:56,287 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:37:56,288 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:37:56,288 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:37:54" (1/3) ... [2019-11-28 03:37:56,289 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6368c8a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:37:56, skipping insertion in model container [2019-11-28 03:37:56,289 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:37:56,290 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:55" (2/3) ... [2019-11-28 03:37:56,290 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6368c8a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:37:56, skipping insertion in model container [2019-11-28 03:37:56,290 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:37:56,290 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:37:56" (3/3) ... [2019-11-28 03:37:56,292 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product42.cil.c [2019-11-28 03:37:56,336 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:37:56,336 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:37:56,336 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:37:56,336 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:37:56,337 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:37:56,337 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:37:56,338 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:37:56,338 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:37:56,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2019-11-28 03:37:56,381 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2019-11-28 03:37:56,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:37:56,382 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:37:56,390 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:37:56,391 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:37:56,391 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:37:56,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2019-11-28 03:37:56,398 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2019-11-28 03:37:56,398 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:37:56,398 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:37:56,399 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:37:56,399 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:37:56,405 INFO L794 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 14#L-1true havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 49#L532true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 75#L540true main_#t~ret48 := valid_product_#res;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 19#L658true assume 0 != main_~tmp~4; 55#L634true havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 12#L555-1true [2019-11-28 03:37:56,406 INFO L796 eck$LassoCheckResult]: Loop: 12#L555-1true assume !false; 29#L684true assume test_~splverifierCounter~0 < 4; 42#L685true test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 63#L693true assume !(0 != test_~tmp~5); 50#L693-1true test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 47#L703true assume !(0 != test_~tmp___0~1); 33#L703-1true test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 16#L713true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 38#L721-2true assume !(0 != ~pumpRunning~0); 6#L749true assume !(0 != ~systemActive~0); 65#L756true havoc __utac_acc__Specification4_spec__1_#t~ret46, __utac_acc__Specification4_spec__1_#t~ret47, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 40#L122true __utac_acc__Specification4_spec__1_#t~ret46 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret46;havoc __utac_acc__Specification4_spec__1_#t~ret46; 10#L555true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 12#L555-1true [2019-11-28 03:37:56,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:37:56,414 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 03:37:56,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:37:56,424 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569104103] [2019-11-28 03:37:56,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:37:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:37:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:37:56,738 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:37:56,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:37:56,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1680236925, now seen corresponding path program 1 times [2019-11-28 03:37:56,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:37:56,740 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906290112] [2019-11-28 03:37:56,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:37:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:37:56,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:37:56,793 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906290112] [2019-11-28 03:37:56,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:37:56,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:37:56,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394390972] [2019-11-28 03:37:56,800 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:37:56,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:37:56,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:37:56,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:37:56,817 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2019-11-28 03:37:56,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:37:56,870 INFO L93 Difference]: Finished difference Result 84 states and 116 transitions. [2019-11-28 03:37:56,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:37:56,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 116 transitions. [2019-11-28 03:37:56,881 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-11-28 03:37:56,892 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 77 states and 108 transitions. [2019-11-28 03:37:56,895 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2019-11-28 03:37:56,897 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2019-11-28 03:37:56,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 108 transitions. [2019-11-28 03:37:56,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:37:56,898 INFO L688 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2019-11-28 03:37:56,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 108 transitions. [2019-11-28 03:37:56,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-11-28 03:37:56,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-28 03:37:56,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2019-11-28 03:37:56,927 INFO L711 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2019-11-28 03:37:56,927 INFO L591 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2019-11-28 03:37:56,928 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:37:56,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 108 transitions. [2019-11-28 03:37:56,930 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-11-28 03:37:56,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:37:56,930 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:37:56,931 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:37:56,931 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:37:56,931 INFO L794 eck$LassoCheckResult]: Stem: 225#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 200#L-1 havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 201#L532 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 234#L540 main_#t~ret48 := valid_product_#res;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 209#L658 assume 0 != main_~tmp~4; 210#L634 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 191#L555-1 [2019-11-28 03:37:56,931 INFO L796 eck$LassoCheckResult]: Loop: 191#L555-1 assume !false; 198#L684 assume test_~splverifierCounter~0 < 4; 219#L685 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 231#L693 assume !(0 != test_~tmp~5); 212#L693-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 233#L703 assume !(0 != test_~tmp___0~1); 224#L703-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 204#L713 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 205#L721-2 assume !(0 != ~pumpRunning~0); 183#L749 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret53, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 184#L781 assume !(0 == ~pumpRunning~0); 245#L756 havoc __utac_acc__Specification4_spec__1_#t~ret46, __utac_acc__Specification4_spec__1_#t~ret47, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 229#L122 __utac_acc__Specification4_spec__1_#t~ret46 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret46;havoc __utac_acc__Specification4_spec__1_#t~ret46; 190#L555 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 191#L555-1 [2019-11-28 03:37:56,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:37:56,932 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 03:37:56,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:37:56,933 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554690250] [2019-11-28 03:37:56,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:37:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:37:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:37:57,075 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:37:57,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:37:57,079 INFO L82 PathProgramCache]: Analyzing trace with hash -589506373, now seen corresponding path program 1 times [2019-11-28 03:37:57,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:37:57,080 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819833615] [2019-11-28 03:37:57,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:37:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:37:57,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:37:57,115 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819833615] [2019-11-28 03:37:57,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:37:57,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:37:57,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602193878] [2019-11-28 03:37:57,116 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:37:57,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:37:57,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:37:57,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:37:57,119 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. cyclomatic complexity: 33 Second operand 3 states. [2019-11-28 03:37:57,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:37:57,223 INFO L93 Difference]: Finished difference Result 118 states and 159 transitions. [2019-11-28 03:37:57,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:37:57,225 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 159 transitions. [2019-11-28 03:37:57,228 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2019-11-28 03:37:57,229 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 118 states and 159 transitions. [2019-11-28 03:37:57,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 118 [2019-11-28 03:37:57,230 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 118 [2019-11-28 03:37:57,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 118 states and 159 transitions. [2019-11-28 03:37:57,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:37:57,232 INFO L688 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2019-11-28 03:37:57,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states and 159 transitions. [2019-11-28 03:37:57,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-11-28 03:37:57,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-11-28 03:37:57,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 159 transitions. [2019-11-28 03:37:57,241 INFO L711 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2019-11-28 03:37:57,241 INFO L591 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2019-11-28 03:37:57,241 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:37:57,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 118 states and 159 transitions. [2019-11-28 03:37:57,243 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2019-11-28 03:37:57,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:37:57,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:37:57,244 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:37:57,244 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] [2019-11-28 03:37:57,245 INFO L794 eck$LassoCheckResult]: Stem: 424#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 399#L-1 havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 400#L532 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 437#L540 main_#t~ret48 := valid_product_#res;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 408#L658 assume 0 != main_~tmp~4; 409#L634 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 392#L555-1 [2019-11-28 03:37:57,245 INFO L796 eck$LassoCheckResult]: Loop: 392#L555-1 assume !false; 396#L684 assume test_~splverifierCounter~0 < 4; 418#L685 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 432#L693 assume !(0 != test_~tmp~5); 411#L693-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 436#L703 assume !(0 != test_~tmp___0~1); 423#L703-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 402#L713 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 403#L721-2 assume !(0 != ~pumpRunning~0); 427#L749 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret53, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 448#L781 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret72, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 449#L130 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 388#L135 isHighWaterLevel_#t~ret72 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret72;havoc isHighWaterLevel_#t~ret72; 389#L901 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 431#L901-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 419#L907 processEnvironment_#t~ret53 := isHighWaterLevel_#res;processEnvironment_~tmp~6 := processEnvironment_#t~ret53;havoc processEnvironment_#t~ret53; 420#L785 assume !(0 != processEnvironment_~tmp~6); 455#L756 havoc __utac_acc__Specification4_spec__1_#t~ret46, __utac_acc__Specification4_spec__1_#t~ret47, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 430#L122 __utac_acc__Specification4_spec__1_#t~ret46 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret46;havoc __utac_acc__Specification4_spec__1_#t~ret46; 391#L555 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 392#L555-1 [2019-11-28 03:37:57,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:37:57,245 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 03:37:57,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:37:57,246 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143434748] [2019-11-28 03:37:57,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:37:57,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:37:57,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:37:57,354 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:37:57,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:37:57,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1033634393, now seen corresponding path program 1 times [2019-11-28 03:37:57,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:37:57,355 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216061527] [2019-11-28 03:37:57,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:37:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:37:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:37:57,375 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:37:57,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:37:57,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1018922419, now seen corresponding path program 1 times [2019-11-28 03:37:57,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:37:57,377 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826447899] [2019-11-28 03:37:57,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:37:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:37:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:37:57,469 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:37:57,628 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-11-28 03:38:27,017 WARN L192 SmtUtils]: Spent 29.31 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 03:38:41,231 WARN L192 SmtUtils]: Spent 14.21 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 03:38:41,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:38:41 BoogieIcfgContainer [2019-11-28 03:38:41,319 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:38:41,319 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:38:41,320 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:38:41,321 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:38:41,321 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:37:56" (3/4) ... [2019-11-28 03:38:41,324 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:38:41,416 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:38:41,417 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:38:41,419 INFO L168 Benchmark]: Toolchain (without parser) took 46680.37 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 298.3 MB). Free memory was 955.0 MB in the beginning and 1.3 GB in the end (delta: -299.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:38:41,419 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:38:41,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:38:41,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.28 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:38:41,421 INFO L168 Benchmark]: Boogie Preprocessor took 38.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:38:41,422 INFO L168 Benchmark]: RCFGBuilder took 790.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 11.5 GB. [2019-11-28 03:38:41,423 INFO L168 Benchmark]: BuchiAutomizer took 45034.97 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 159.9 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -213.4 MB). Peak memory consumption was 371.5 MB. Max. memory is 11.5 GB. [2019-11-28 03:38:41,424 INFO L168 Benchmark]: Witness Printer took 97.45 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:38:41,431 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 633.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 77.28 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 790.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 45034.97 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 159.9 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -213.4 MB). Peak memory consumption was 371.5 MB. Max. memory is 11.5 GB. * Witness Printer took 97.45 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 118 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 44.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 44.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 118 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 219 SDtfs, 203 SDslu, 48 SDs, 0 SdLazy, 24 SolverSat, 14 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: 683]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8782} State at position 1 is {NULL=0, NULL=8783, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f6034b8=0, NULL=8782, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@547bf346=0, NULL=8789, NULL=0, NULL=8798, NULL=0, NULL=8796, NULL=8793, retValue_acc=0, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@180065ae=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ec30355=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ce27683=55, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f70a914=0, NULL=16029, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@dac80a=0, tmp___0=0, NULL=0, NULL=0, tmp=0, NULL=16027, NULL=8800, NULL=0, tmp___1=0, NULL=13953, tmp___0=0, NULL=8791, NULL=8792, cleanupTimeShifts=4, NULL=8799, NULL=8788, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=8785, \result=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54a0d47=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57ea0954=0, \result=0, NULL=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=8784, \result=0, tmp=1, retValue_acc=1, NULL=0, \result=1, NULL=16030, NULL=16031, retValue_acc=1, NULL=0, tmp=1, retValue_acc=0, NULL=8786, tmp=1, tmp___2=55, NULL=16028, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=8794, NULL=16032, head=0, NULL=0, tmp=0, NULL=13954, NULL=0, NULL=0, NULL=8790, NULL=0, NULL=8787, NULL=8797} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L573] int cleanupTimeShifts = 4; [L742] int pumpRunning = 0; [L743] int systemActive = 1; [L649] int retValue_acc ; [L650] int tmp ; [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L656] tmp = valid_product() [L658] COND TRUE \read(tmp) [L674] int splverifierCounter ; [L675] int tmp ; [L676] int tmp___0 ; [L677] int tmp___1 ; [L678] int tmp___2 ; [L681] splverifierCounter = 0 Loop: [L683] COND TRUE 1 [L685] COND TRUE splverifierCounter < 4 [L691] tmp = __VERIFIER_nondet_int() [L693] COND FALSE !(\read(tmp)) [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND TRUE \read(tmp___2) [L915] systemActive = 1 [L749] COND FALSE !(\read(pumpRunning)) [L756] COND TRUE \read(systemActive) [L778] int tmp ; [L781] COND TRUE ! pumpRunning [L893] int retValue_acc ; [L894] int tmp ; [L895] int tmp___0 ; [L127] int retValue_acc ; [L130] COND TRUE waterLevel < 2 [L131] retValue_acc = 1 [L132] return (retValue_acc); [L899] tmp = isHighWaterSensorDry() [L901] COND TRUE \read(tmp) [L902] tmp___0 = 0 [L906] retValue_acc = tmp___0 [L907] return (retValue_acc); [L783] tmp = isHighWaterLevel() [L785] COND FALSE !(\read(tmp)) [L548] int tmp ; [L549] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L553] tmp = getWaterLevel() [L555] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...