./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product37.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_spec5_product37.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 6a5b3ee1add5adeacf75c411f0af51a190ac6f33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:00:51,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 03:00:51,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 03:00:51,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 03:00:51,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 03:00:51,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 03:00:51,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 03:00:51,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 03:00:51,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 03:00:51,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 03:00:51,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 03:00:51,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 03:00:51,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 03:00:51,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 03:00:51,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 03:00:51,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 03:00:51,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 03:00:51,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 03:00:51,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 03:00:51,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 03:00:51,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 03:00:51,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 03:00:51,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 03:00:51,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 03:00:51,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 03:00:51,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 03:00:51,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 03:00:51,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 03:00:51,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 03:00:51,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 03:00:51,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 03:00:51,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 03:00:51,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 03:00:51,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 03:00:51,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 03:00:51,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 03:00:51,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 03:00:51,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 03:00:51,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 03:00:51,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 03:00:51,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 03:00:51,533 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 03:00:51,567 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 03:00:51,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 03:00:51,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 03:00:51,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 03:00:51,570 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 03:00:51,570 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 03:00:51,570 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 03:00:51,571 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 03:00:51,571 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 03:00:51,571 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 03:00:51,572 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 03:00:51,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 03:00:51,573 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 03:00:51,573 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 03:00:51,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 03:00:51,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 03:00:51,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 03:00:51,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 03:00:51,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 03:00:51,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 03:00:51,575 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 03:00:51,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 03:00:51,575 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 03:00:51,575 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 03:00:51,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 03:00:51,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 03:00:51,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 03:00:51,576 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 03:00:51,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 03:00:51,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 03:00:51,577 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 03:00:51,578 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 03:00:51,580 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 03:00:51,580 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 -> 6a5b3ee1add5adeacf75c411f0af51a190ac6f33 [2020-07-29 03:00:51,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 03:00:51,951 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 03:00:51,954 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 03:00:51,956 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 03:00:51,956 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 03:00:51,957 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product37.cil.c [2020-07-29 03:00:52,027 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7d5e691b/fc805a512e3e4226803381c510decaa0/FLAG289b40c79 [2020-07-29 03:00:52,539 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 03:00:52,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product37.cil.c [2020-07-29 03:00:52,570 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7d5e691b/fc805a512e3e4226803381c510decaa0/FLAG289b40c79 [2020-07-29 03:00:52,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7d5e691b/fc805a512e3e4226803381c510decaa0 [2020-07-29 03:00:52,868 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 03:00:52,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 03:00:52,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 03:00:52,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 03:00:52,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 03:00:52,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 03:00:52" (1/1) ... [2020-07-29 03:00:52,882 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 03:00:52, skipping insertion in model container [2020-07-29 03:00:52,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 03:00:52" (1/1) ... [2020-07-29 03:00:52,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 03:00:52,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 03:00:53,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 03:00:53,394 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 03:00:53,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 03:00:53,600 INFO L208 MainTranslator]: Completed translation [2020-07-29 03:00:53,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:00:53 WrapperNode [2020-07-29 03:00:53,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 03:00:53,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 03:00:53,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 03:00:53,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 03:00:53,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:00:53" (1/1) ... [2020-07-29 03:00:53,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:00:53" (1/1) ... [2020-07-29 03:00:53,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 03:00:53,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 03:00:53,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 03:00:53,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 03:00:53,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:00:53" (1/1) ... [2020-07-29 03:00:53,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:00:53" (1/1) ... [2020-07-29 03:00:53,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:00:53" (1/1) ... [2020-07-29 03:00:53,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:00:53" (1/1) ... [2020-07-29 03:00:53,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:00:53" (1/1) ... [2020-07-29 03:00:53,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:00:53" (1/1) ... [2020-07-29 03:00:53,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:00:53" (1/1) ... [2020-07-29 03:00:53,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 03:00:53,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 03:00:53,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 03:00:53,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 03:00:53,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:00:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:00:53,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 03:00:53,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-29 03:00:53,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 03:00:53,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 03:00:55,274 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 03:00:55,274 INFO L295 CfgBuilder]: Removed 170 assume(true) statements. [2020-07-29 03:00:55,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 03:00:55 BoogieIcfgContainer [2020-07-29 03:00:55,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 03:00:55,281 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 03:00:55,281 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 03:00:55,285 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 03:00:55,286 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 03:00:55,286 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 03:00:52" (1/3) ... [2020-07-29 03:00:55,288 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d775800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 03:00:55, skipping insertion in model container [2020-07-29 03:00:55,288 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 03:00:55,288 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:00:53" (2/3) ... [2020-07-29 03:00:55,288 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d775800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 03:00:55, skipping insertion in model container [2020-07-29 03:00:55,289 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 03:00:55,289 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 03:00:55" (3/3) ... [2020-07-29 03:00:55,291 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product37.cil.c [2020-07-29 03:00:55,340 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 03:00:55,340 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 03:00:55,340 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 03:00:55,340 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 03:00:55,341 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 03:00:55,341 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 03:00:55,341 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 03:00:55,341 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 03:00:55,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states. [2020-07-29 03:00:55,414 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2020-07-29 03:00:55,415 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:00:55,415 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:00:55,423 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:00:55,423 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:00:55,423 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 03:00:55,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states. [2020-07-29 03:00:55,441 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2020-07-29 03:00:55,441 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:00:55,441 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:00:55,442 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:00:55,443 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:00:55,450 INFO L794 eck$LassoCheckResult]: Stem: 86#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~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 7#L-1true havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 9#L574true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 18#L582true main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 78#L281true assume 0 != main_~tmp~1; 82#L253true ~switchedOnBeforeTS~0 := 0; 69#L149true havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 107#L170-1true [2020-07-29 03:00:55,451 INFO L796 eck$LassoCheckResult]: Loop: 107#L170-1true assume !false; 88#L498true assume test_~splverifierCounter~0 < 4; 33#L499true test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 52#L507true assume !(0 != test_~tmp~5); 54#L507-1true test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 111#L517true assume !(0 != test_~tmp___0~2); 94#L517-1true test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 22#L527true assume 0 != test_~tmp___2~0; 117#L533-2true havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 62#L427true __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 115#L159true assume !(0 != ~pumpRunning~0); 109#L316true assume !(0 != ~systemActive~0); 26#L323true havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~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; 25#L122true __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 116#L170true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 107#L170-1true [2020-07-29 03:00:55,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:00:55,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-07-29 03:00:55,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:00:55,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729374757] [2020-07-29 03:00:55,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:00:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:00:55,712 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:00:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:00:55,849 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:00:55,890 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:00:55,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:00:55,893 INFO L82 PathProgramCache]: Analyzing trace with hash 95890028, now seen corresponding path program 1 times [2020-07-29 03:00:55,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:00:55,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811452443] [2020-07-29 03:00:55,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:00:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:00:55,902 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:00:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:00:55,908 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:00:55,918 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:00:55,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:00:55,925 INFO L82 PathProgramCache]: Analyzing trace with hash 2029915238, now seen corresponding path program 1 times [2020-07-29 03:00:55,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:00:55,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627176342] [2020-07-29 03:00:55,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:00:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:00:56,167 INFO L280 TraceCheckUtils]: 0: Hoare triple {125#true} #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~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {127#(= 1 ~systemActive~0)} is VALID [2020-07-29 03:00:56,168 INFO L280 TraceCheckUtils]: 1: Hoare triple {127#(= 1 ~systemActive~0)} havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; {127#(= 1 ~systemActive~0)} is VALID [2020-07-29 03:00:56,171 INFO L280 TraceCheckUtils]: 2: Hoare triple {127#(= 1 ~systemActive~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; {128#(= |ULTIMATE.start_valid_product_#res| ~systemActive~0)} is VALID [2020-07-29 03:00:56,173 INFO L280 TraceCheckUtils]: 3: Hoare triple {128#(= |ULTIMATE.start_valid_product_#res| ~systemActive~0)} main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; {129#(= ULTIMATE.start_main_~tmp~1 ~systemActive~0)} is VALID [2020-07-29 03:00:56,175 INFO L280 TraceCheckUtils]: 4: Hoare triple {129#(= ULTIMATE.start_main_~tmp~1 ~systemActive~0)} assume 0 != main_~tmp~1; {130#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 03:00:56,176 INFO L280 TraceCheckUtils]: 5: Hoare triple {130#(not (= 0 ~systemActive~0))} ~switchedOnBeforeTS~0 := 0; {130#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 03:00:56,177 INFO L280 TraceCheckUtils]: 6: Hoare triple {130#(not (= 0 ~systemActive~0))} havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {130#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 03:00:56,179 INFO L280 TraceCheckUtils]: 7: Hoare triple {130#(not (= 0 ~systemActive~0))} assume !false; {130#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 03:00:56,180 INFO L280 TraceCheckUtils]: 8: Hoare triple {130#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0 < 4; {130#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 03:00:56,181 INFO L280 TraceCheckUtils]: 9: Hoare triple {130#(not (= 0 ~systemActive~0))} test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; {130#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 03:00:56,182 INFO L280 TraceCheckUtils]: 10: Hoare triple {130#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~5); {130#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 03:00:56,183 INFO L280 TraceCheckUtils]: 11: Hoare triple {130#(not (= 0 ~systemActive~0))} test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; {130#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 03:00:56,184 INFO L280 TraceCheckUtils]: 12: Hoare triple {130#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~2); {130#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 03:00:56,185 INFO L280 TraceCheckUtils]: 13: Hoare triple {130#(not (= 0 ~systemActive~0))} test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; {130#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 03:00:56,186 INFO L280 TraceCheckUtils]: 14: Hoare triple {130#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0; {130#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 03:00:56,187 INFO L280 TraceCheckUtils]: 15: Hoare triple {130#(not (= 0 ~systemActive~0))} havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {130#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 03:00:56,188 INFO L280 TraceCheckUtils]: 16: Hoare triple {130#(not (= 0 ~systemActive~0))} __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; {130#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 03:00:56,189 INFO L280 TraceCheckUtils]: 17: Hoare triple {130#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {130#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 03:00:56,190 INFO L280 TraceCheckUtils]: 18: Hoare triple {130#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {126#false} is VALID [2020-07-29 03:00:56,190 INFO L280 TraceCheckUtils]: 19: Hoare triple {126#false} havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~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; {126#false} is VALID [2020-07-29 03:00:56,191 INFO L280 TraceCheckUtils]: 20: Hoare triple {126#false} __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; {126#false} is VALID [2020-07-29 03:00:56,191 INFO L280 TraceCheckUtils]: 21: Hoare triple {126#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); {126#false} is VALID [2020-07-29 03:00:56,197 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 03:00:56,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627176342] [2020-07-29 03:00:56,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 03:00:56,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-29 03:00:56,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684944657] [2020-07-29 03:00:56,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 03:00:56,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-29 03:00:56,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-29 03:00:56,341 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 6 states. [2020-07-29 03:00:57,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:00:57,381 INFO L93 Difference]: Finished difference Result 117 states and 166 transitions. [2020-07-29 03:00:57,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-29 03:00:57,383 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-29 03:00:57,427 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 03:00:57,432 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 117 states and 166 transitions. [2020-07-29 03:00:57,454 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-07-29 03:00:57,474 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 117 states to 110 states and 159 transitions. [2020-07-29 03:00:57,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 110 [2020-07-29 03:00:57,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 110 [2020-07-29 03:00:57,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 159 transitions. [2020-07-29 03:00:57,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 03:00:57,482 INFO L688 BuchiCegarLoop]: Abstraction has 110 states and 159 transitions. [2020-07-29 03:00:57,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 159 transitions. [2020-07-29 03:00:57,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-07-29 03:00:57,568 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 03:00:57,569 INFO L82 GeneralOperation]: Start isEquivalent. First operand 110 states and 159 transitions. Second operand 110 states. [2020-07-29 03:00:57,569 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states and 159 transitions. Second operand 110 states. [2020-07-29 03:00:57,571 INFO L87 Difference]: Start difference. First operand 110 states and 159 transitions. Second operand 110 states. [2020-07-29 03:00:57,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:00:57,578 INFO L93 Difference]: Finished difference Result 110 states and 159 transitions. [2020-07-29 03:00:57,579 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 159 transitions. [2020-07-29 03:00:57,581 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:00:57,581 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:00:57,581 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states. Second operand 110 states and 159 transitions. [2020-07-29 03:00:57,582 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 110 states and 159 transitions. [2020-07-29 03:00:57,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:00:57,588 INFO L93 Difference]: Finished difference Result 110 states and 159 transitions. [2020-07-29 03:00:57,588 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 159 transitions. [2020-07-29 03:00:57,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:00:57,590 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:00:57,590 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 03:00:57,590 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 03:00:57,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-07-29 03:00:57,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 159 transitions. [2020-07-29 03:00:57,598 INFO L711 BuchiCegarLoop]: Abstraction has 110 states and 159 transitions. [2020-07-29 03:00:57,598 INFO L591 BuchiCegarLoop]: Abstraction has 110 states and 159 transitions. [2020-07-29 03:00:57,598 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 03:00:57,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states and 159 transitions. [2020-07-29 03:00:57,601 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-07-29 03:00:57,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:00:57,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:00:57,602 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:00:57,602 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:00:57,603 INFO L794 eck$LassoCheckResult]: Stem: 350#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~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 259#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 260#L574 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 261#L582 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 279#L281 assume 0 != main_~tmp~1; 346#L253 ~switchedOnBeforeTS~0 := 0; 342#L149 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 255#L170-1 [2020-07-29 03:00:57,603 INFO L796 eck$LassoCheckResult]: Loop: 255#L170-1 assume !false; 351#L498 assume test_~splverifierCounter~0 < 4; 298#L499 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 299#L507 assume !(0 != test_~tmp~5); 265#L507-1 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 322#L517 assume !(0 != test_~tmp___0~2); 354#L517-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 285#L527 assume 0 != test_~tmp___2~0; 258#L533-2 havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 333#L427 __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 334#L159 assume !(0 != ~pumpRunning~0); 309#L316 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 357#L374 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 281#L348-1 assume !(0 == ~pumpRunning~0); 277#L323 havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~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; 289#L122 __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 290#L170 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 255#L170-1 [2020-07-29 03:00:57,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:00:57,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-07-29 03:00:57,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:00:57,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354747479] [2020-07-29 03:00:57,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:00:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:00:57,652 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:00:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:00:57,692 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:00:57,705 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:00:57,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:00:57,706 INFO L82 PathProgramCache]: Analyzing trace with hash -484283837, now seen corresponding path program 1 times [2020-07-29 03:00:57,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:00:57,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443201520] [2020-07-29 03:00:57,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:00:57,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:00:57,740 INFO L280 TraceCheckUtils]: 0: Hoare triple {587#true} assume !false; {587#true} is VALID [2020-07-29 03:00:57,740 INFO L280 TraceCheckUtils]: 1: Hoare triple {587#true} assume test_~splverifierCounter~0 < 4; {587#true} is VALID [2020-07-29 03:00:57,741 INFO L280 TraceCheckUtils]: 2: Hoare triple {587#true} test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; {587#true} is VALID [2020-07-29 03:00:57,741 INFO L280 TraceCheckUtils]: 3: Hoare triple {587#true} assume !(0 != test_~tmp~5); {587#true} is VALID [2020-07-29 03:00:57,741 INFO L280 TraceCheckUtils]: 4: Hoare triple {587#true} test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; {587#true} is VALID [2020-07-29 03:00:57,741 INFO L280 TraceCheckUtils]: 5: Hoare triple {587#true} assume !(0 != test_~tmp___0~2); {587#true} is VALID [2020-07-29 03:00:57,742 INFO L280 TraceCheckUtils]: 6: Hoare triple {587#true} test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; {587#true} is VALID [2020-07-29 03:00:57,742 INFO L280 TraceCheckUtils]: 7: Hoare triple {587#true} assume 0 != test_~tmp___2~0; {587#true} is VALID [2020-07-29 03:00:57,742 INFO L280 TraceCheckUtils]: 8: Hoare triple {587#true} havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {587#true} is VALID [2020-07-29 03:00:57,743 INFO L280 TraceCheckUtils]: 9: Hoare triple {587#true} __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; {587#true} is VALID [2020-07-29 03:00:57,743 INFO L280 TraceCheckUtils]: 10: Hoare triple {587#true} assume !(0 != ~pumpRunning~0); {589#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 03:00:57,744 INFO L280 TraceCheckUtils]: 11: Hoare triple {589#(= 0 ~pumpRunning~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; {589#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 03:00:57,744 INFO L280 TraceCheckUtils]: 12: Hoare triple {589#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; {589#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 03:00:57,745 INFO L280 TraceCheckUtils]: 13: Hoare triple {589#(= 0 ~pumpRunning~0)} assume !(0 == ~pumpRunning~0); {588#false} is VALID [2020-07-29 03:00:57,745 INFO L280 TraceCheckUtils]: 14: Hoare triple {588#false} havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~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; {588#false} is VALID [2020-07-29 03:00:57,746 INFO L280 TraceCheckUtils]: 15: Hoare triple {588#false} __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; {588#false} is VALID [2020-07-29 03:00:57,746 INFO L280 TraceCheckUtils]: 16: Hoare triple {588#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); {588#false} is VALID [2020-07-29 03:00:57,746 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 03:00:57,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443201520] [2020-07-29 03:00:57,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 03:00:57,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 03:00:57,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370191840] [2020-07-29 03:00:57,748 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 03:00:57,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 03:00:57,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 03:00:57,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 03:00:57,749 INFO L87 Difference]: Start difference. First operand 110 states and 159 transitions. cyclomatic complexity: 51 Second operand 3 states. [2020-07-29 03:00:58,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:00:58,086 INFO L93 Difference]: Finished difference Result 159 states and 218 transitions. [2020-07-29 03:00:58,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 03:00:58,087 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 03:00:58,107 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 03:00:58,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 218 transitions. [2020-07-29 03:00:58,119 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2020-07-29 03:00:58,129 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 159 states and 218 transitions. [2020-07-29 03:00:58,131 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2020-07-29 03:00:58,132 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2020-07-29 03:00:58,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 218 transitions. [2020-07-29 03:00:58,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 03:00:58,136 INFO L688 BuchiCegarLoop]: Abstraction has 159 states and 218 transitions. [2020-07-29 03:00:58,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 218 transitions. [2020-07-29 03:00:58,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2020-07-29 03:00:58,160 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 03:00:58,160 INFO L82 GeneralOperation]: Start isEquivalent. First operand 159 states and 218 transitions. Second operand 159 states. [2020-07-29 03:00:58,160 INFO L74 IsIncluded]: Start isIncluded. First operand 159 states and 218 transitions. Second operand 159 states. [2020-07-29 03:00:58,161 INFO L87 Difference]: Start difference. First operand 159 states and 218 transitions. Second operand 159 states. [2020-07-29 03:00:58,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:00:58,169 INFO L93 Difference]: Finished difference Result 159 states and 218 transitions. [2020-07-29 03:00:58,169 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 218 transitions. [2020-07-29 03:00:58,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:00:58,175 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:00:58,175 INFO L74 IsIncluded]: Start isIncluded. First operand 159 states. Second operand 159 states and 218 transitions. [2020-07-29 03:00:58,175 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 159 states and 218 transitions. [2020-07-29 03:00:58,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:00:58,182 INFO L93 Difference]: Finished difference Result 159 states and 218 transitions. [2020-07-29 03:00:58,183 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 218 transitions. [2020-07-29 03:00:58,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:00:58,185 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:00:58,185 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 03:00:58,185 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 03:00:58,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-07-29 03:00:58,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 218 transitions. [2020-07-29 03:00:58,193 INFO L711 BuchiCegarLoop]: Abstraction has 159 states and 218 transitions. [2020-07-29 03:00:58,193 INFO L591 BuchiCegarLoop]: Abstraction has 159 states and 218 transitions. [2020-07-29 03:00:58,194 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-29 03:00:58,194 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 218 transitions. [2020-07-29 03:00:58,196 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2020-07-29 03:00:58,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:00:58,196 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:00:58,198 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:00:58,198 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:00:58,199 INFO L794 eck$LassoCheckResult]: Stem: 850#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~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 756#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 757#L574 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 758#L582 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 775#L281 assume 0 != main_~tmp~1; 847#L253 ~switchedOnBeforeTS~0 := 0; 842#L149 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 843#L170-1 [2020-07-29 03:00:58,199 INFO L796 eck$LassoCheckResult]: Loop: 843#L170-1 assume !false; 899#L498 assume test_~splverifierCounter~0 < 4; 898#L499 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 897#L507 assume !(0 != test_~tmp~5); 895#L507-1 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 866#L517 assume !(0 != test_~tmp___0~2); 855#L517-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 782#L527 assume 0 != test_~tmp___2~0; 755#L533-2 havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 833#L427 __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 834#L159 assume !(0 != ~pumpRunning~0); 865#L316 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 860#L374 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 777#L348-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 778#L130-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 817#L135-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 825#L476-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 848#L476-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 831#L482-1 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 832#L352-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 802#L323 havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~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; 904#L122 __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 902#L170 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 843#L170-1 [2020-07-29 03:00:58,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:00:58,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-07-29 03:00:58,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:00:58,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487397674] [2020-07-29 03:00:58,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:00:58,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:00:58,236 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:00:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:00:58,295 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:00:58,317 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:00:58,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:00:58,319 INFO L82 PathProgramCache]: Analyzing trace with hash 459590415, now seen corresponding path program 1 times [2020-07-29 03:00:58,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:00:58,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234000989] [2020-07-29 03:00:58,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:00:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:00:58,409 INFO L280 TraceCheckUtils]: 0: Hoare triple {1231#true} assume !false; {1231#true} is VALID [2020-07-29 03:00:58,409 INFO L280 TraceCheckUtils]: 1: Hoare triple {1231#true} assume test_~splverifierCounter~0 < 4; {1231#true} is VALID [2020-07-29 03:00:58,410 INFO L280 TraceCheckUtils]: 2: Hoare triple {1231#true} test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; {1231#true} is VALID [2020-07-29 03:00:58,410 INFO L280 TraceCheckUtils]: 3: Hoare triple {1231#true} assume !(0 != test_~tmp~5); {1231#true} is VALID [2020-07-29 03:00:58,410 INFO L280 TraceCheckUtils]: 4: Hoare triple {1231#true} test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; {1231#true} is VALID [2020-07-29 03:00:58,411 INFO L280 TraceCheckUtils]: 5: Hoare triple {1231#true} assume !(0 != test_~tmp___0~2); {1231#true} is VALID [2020-07-29 03:00:58,411 INFO L280 TraceCheckUtils]: 6: Hoare triple {1231#true} test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; {1231#true} is VALID [2020-07-29 03:00:58,411 INFO L280 TraceCheckUtils]: 7: Hoare triple {1231#true} assume 0 != test_~tmp___2~0; {1231#true} is VALID [2020-07-29 03:00:58,412 INFO L280 TraceCheckUtils]: 8: Hoare triple {1231#true} havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {1231#true} is VALID [2020-07-29 03:00:58,412 INFO L280 TraceCheckUtils]: 9: Hoare triple {1231#true} __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; {1231#true} is VALID [2020-07-29 03:00:58,412 INFO L280 TraceCheckUtils]: 10: Hoare triple {1231#true} assume !(0 != ~pumpRunning~0); {1231#true} is VALID [2020-07-29 03:00:58,413 INFO L280 TraceCheckUtils]: 11: Hoare triple {1231#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; {1231#true} is VALID [2020-07-29 03:00:58,413 INFO L280 TraceCheckUtils]: 12: Hoare triple {1231#true} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; {1231#true} is VALID [2020-07-29 03:00:58,418 INFO L280 TraceCheckUtils]: 13: Hoare triple {1231#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; {1231#true} is VALID [2020-07-29 03:00:58,424 INFO L280 TraceCheckUtils]: 14: Hoare triple {1231#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; {1233#(not (= 2 ~waterLevel~0))} is VALID [2020-07-29 03:00:58,425 INFO L280 TraceCheckUtils]: 15: Hoare triple {1233#(not (= 2 ~waterLevel~0))} isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; {1233#(not (= 2 ~waterLevel~0))} is VALID [2020-07-29 03:00:58,426 INFO L280 TraceCheckUtils]: 16: Hoare triple {1233#(not (= 2 ~waterLevel~0))} assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; {1233#(not (= 2 ~waterLevel~0))} is VALID [2020-07-29 03:00:58,427 INFO L280 TraceCheckUtils]: 17: Hoare triple {1233#(not (= 2 ~waterLevel~0))} isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; {1233#(not (= 2 ~waterLevel~0))} is VALID [2020-07-29 03:00:58,427 INFO L280 TraceCheckUtils]: 18: Hoare triple {1233#(not (= 2 ~waterLevel~0))} processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; {1233#(not (= 2 ~waterLevel~0))} is VALID [2020-07-29 03:00:58,428 INFO L280 TraceCheckUtils]: 19: Hoare triple {1233#(not (= 2 ~waterLevel~0))} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); {1233#(not (= 2 ~waterLevel~0))} is VALID [2020-07-29 03:00:58,429 INFO L280 TraceCheckUtils]: 20: Hoare triple {1233#(not (= 2 ~waterLevel~0))} havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~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; {1234#(not (= 2 |ULTIMATE.start_getWaterLevel_#res|))} is VALID [2020-07-29 03:00:58,430 INFO L280 TraceCheckUtils]: 21: Hoare triple {1234#(not (= 2 |ULTIMATE.start_getWaterLevel_#res|))} __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; {1235#(not (= 2 ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~0))} is VALID [2020-07-29 03:00:58,432 INFO L280 TraceCheckUtils]: 22: Hoare triple {1235#(not (= 2 ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~0))} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); {1232#false} is VALID [2020-07-29 03:00:58,434 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 03:00:58,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234000989] [2020-07-29 03:00:58,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 03:00:58,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-29 03:00:58,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012508648] [2020-07-29 03:00:58,435 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 03:00:58,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 03:00:58,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-29 03:00:58,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-29 03:00:58,437 INFO L87 Difference]: Start difference. First operand 159 states and 218 transitions. cyclomatic complexity: 61 Second operand 5 states. [2020-07-29 03:00:59,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:00:59,982 INFO L93 Difference]: Finished difference Result 664 states and 921 transitions. [2020-07-29 03:00:59,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-29 03:00:59,983 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-29 03:01:00,006 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 03:01:00,007 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 664 states and 921 transitions. [2020-07-29 03:01:00,045 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 457 [2020-07-29 03:01:00,081 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 664 states to 664 states and 921 transitions. [2020-07-29 03:01:00,082 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 664 [2020-07-29 03:01:00,082 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 664 [2020-07-29 03:01:00,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 664 states and 921 transitions. [2020-07-29 03:01:00,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 03:01:00,085 INFO L688 BuchiCegarLoop]: Abstraction has 664 states and 921 transitions. [2020-07-29 03:01:00,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states and 921 transitions. [2020-07-29 03:01:00,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 308. [2020-07-29 03:01:00,099 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 03:01:00,099 INFO L82 GeneralOperation]: Start isEquivalent. First operand 664 states and 921 transitions. Second operand 308 states. [2020-07-29 03:01:00,099 INFO L74 IsIncluded]: Start isIncluded. First operand 664 states and 921 transitions. Second operand 308 states. [2020-07-29 03:01:00,099 INFO L87 Difference]: Start difference. First operand 664 states and 921 transitions. Second operand 308 states. [2020-07-29 03:01:00,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:01:00,133 INFO L93 Difference]: Finished difference Result 664 states and 921 transitions. [2020-07-29 03:01:00,133 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 921 transitions. [2020-07-29 03:01:00,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:01:00,135 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:01:00,135 INFO L74 IsIncluded]: Start isIncluded. First operand 308 states. Second operand 664 states and 921 transitions. [2020-07-29 03:01:00,135 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 664 states and 921 transitions. [2020-07-29 03:01:00,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:01:00,169 INFO L93 Difference]: Finished difference Result 664 states and 921 transitions. [2020-07-29 03:01:00,169 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 921 transitions. [2020-07-29 03:01:00,170 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:01:00,171 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:01:00,171 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 03:01:00,171 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 03:01:00,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-07-29 03:01:00,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 417 transitions. [2020-07-29 03:01:00,182 INFO L711 BuchiCegarLoop]: Abstraction has 308 states and 417 transitions. [2020-07-29 03:01:00,183 INFO L591 BuchiCegarLoop]: Abstraction has 308 states and 417 transitions. [2020-07-29 03:01:00,183 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-29 03:01:00,183 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 308 states and 417 transitions. [2020-07-29 03:01:00,185 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 218 [2020-07-29 03:01:00,186 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:01:00,186 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:01:00,187 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:01:00,187 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:01:00,187 INFO L794 eck$LassoCheckResult]: Stem: 2028#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~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1918#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 1919#L574 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1920#L582 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 1937#L281 assume 0 != main_~tmp~1; 2025#L253 ~switchedOnBeforeTS~0 := 0; 2020#L149 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2021#L170-1 [2020-07-29 03:01:00,188 INFO L796 eck$LassoCheckResult]: Loop: 2021#L170-1 assume !false; 2172#L498 assume test_~splverifierCounter~0 < 4; 2148#L499 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 2146#L507 assume !(0 != test_~tmp~5); 2142#L507-1 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 2139#L517 assume !(0 != test_~tmp___0~2); 2136#L517-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 2134#L527 assume 0 != test_~tmp___2~0; 2132#L533-2 havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 2130#L427 __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 2128#L159 assume !(0 != ~pumpRunning~0); 2126#L316 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 2125#L374 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 2115#L348-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 2123#L130-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1990#L135-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 2120#L476-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 2118#L476-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 2116#L482-1 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 2103#L352-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 2104#L323 havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~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; 1949#L122 __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 1950#L170 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 2075#L427-1 __utac_acc__Specification5_spec__3_#t~ret12 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret12;havoc __utac_acc__Specification5_spec__3_#t~ret12; 2076#L174 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 2021#L170-1 [2020-07-29 03:01:00,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:01:00,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-07-29 03:01:00,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:01:00,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629842926] [2020-07-29 03:01:00,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:01:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:01:00,221 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:01:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:01:00,276 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:01:00,289 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:01:00,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:01:00,290 INFO L82 PathProgramCache]: Analyzing trace with hash -715255062, now seen corresponding path program 1 times [2020-07-29 03:01:00,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:01:00,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929151324] [2020-07-29 03:01:00,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:01:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:01:00,307 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:01:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:01:00,312 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:01:00,321 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:01:00,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:01:00,322 INFO L82 PathProgramCache]: Analyzing trace with hash -778681244, now seen corresponding path program 1 times [2020-07-29 03:01:00,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:01:00,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114511186] [2020-07-29 03:01:00,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:01:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:01:00,356 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:01:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:01:00,387 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:01:00,408 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:01:00,583 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-07-29 03:01:46,003 WARN L193 SmtUtils]: Spent 45.27 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2020-07-29 03:02:23,820 WARN L193 SmtUtils]: Spent 37.58 s on a formula simplification that was a NOOP. DAG size: 402 [2020-07-29 03:02:24,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 03:02:24 BoogieIcfgContainer [2020-07-29 03:02:24,157 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 03:02:24,158 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 03:02:24,158 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 03:02:24,158 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 03:02:24,159 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 03:00:55" (3/4) ... [2020-07-29 03:02:24,162 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 03:02:24,225 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 03:02:24,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 03:02:24,228 INFO L168 Benchmark]: Toolchain (without parser) took 91358.46 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 367.5 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -167.2 MB). Peak memory consumption was 200.3 MB. Max. memory is 11.5 GB. [2020-07-29 03:02:24,229 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 03:02:24,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -157.3 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2020-07-29 03:02:24,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.16 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-07-29 03:02:24,231 INFO L168 Benchmark]: Boogie Preprocessor took 55.78 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-07-29 03:02:24,231 INFO L168 Benchmark]: RCFGBuilder took 1502.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 957.1 MB in the end (delta: 142.8 MB). Peak memory consumption was 142.8 MB. Max. memory is 11.5 GB. [2020-07-29 03:02:24,232 INFO L168 Benchmark]: BuchiAutomizer took 88876.76 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 234.4 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 322.1 MB. Max. memory is 11.5 GB. [2020-07-29 03:02:24,233 INFO L168 Benchmark]: Witness Printer took 67.84 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 03:02:24,236 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 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 731.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -157.3 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 116.16 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.78 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1502.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 957.1 MB in the end (delta: 142.8 MB). Peak memory consumption was 142.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 88876.76 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 234.4 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 322.1 MB. Max. memory is 11.5 GB. * Witness Printer took 67.84 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 308 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 88.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 85.1s. Construction of modules took 0.4s. Büchi inclusion checks took 2.6s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 356 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 308 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 567 SDtfs, 1500 SDslu, 775 SDs, 0 SdLazy, 172 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 497]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6485} State at position 1 is {NULL=0, NULL=0, NULL=6496, NULL=6485, retValue_acc=0, NULL=6503, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2dce1e11=0, NULL=6495, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52a97ee8=0, NULL=0, NULL=0, methaneLevelCritical=0, tmp___0=0, NULL=0, tmp=0, NULL=0, NULL=0, NULL=6508, NULL=0, tmp___1=0, tmp=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d753e5f=0, NULL=6487, NULL=6498, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@bef71dd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72b09582=50, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4292a11f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c5f0a56=0, NULL=0, systemActive=1, waterLevel=1, NULL=6502, \result=1, NULL=0, NULL=0, NULL=6505, \result=0, NULL=6507, NULL=0, NULL=0, tmp___0=0, \result=1, retValue_acc=1, NULL=6501, head=0, pumpRunning=0, NULL=6510, \result=0, NULL=6491, tmp=1, retValue_acc=1, NULL=0, NULL=0, \result=1, NULL=6494, NULL=6506, NULL=6489, retValue_acc=1, NULL=0, tmp=1, NULL=6492, tmp___2=50, tmp___0=0, NULL=6493, NULL=6490, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f060c58=0, splverifierCounter=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c069cfc=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=6486, NULL=6504, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ec9f349=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d58fc76=0, NULL=6509, tmp=0, head=0, NULL=0, NULL=0, NULL=6488, NULL=0, NULL=0, NULL=6499, NULL=6497, NULL=0, NULL=6500, retValue_acc=0} - 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; [L143] int switchedOnBeforeTS ; [L192] int cleanupTimeShifts = 4; [L306] int pumpRunning = 0; [L307] int systemActive = 1; [L756] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L272] int retValue_acc ; [L273] int tmp ; [L578] int retValue_acc ; [L581] retValue_acc = 1 [L582] return (retValue_acc); [L279] tmp = valid_product() [L281] COND TRUE \read(tmp) [L148] switchedOnBeforeTS = 0 [L488] int splverifierCounter ; [L489] int tmp ; [L490] int tmp___0 ; [L491] int tmp___1 ; [L492] int tmp___2 ; [L495] splverifierCounter = 0 Loop: [L497] COND TRUE 1 [L499] COND TRUE splverifierCounter < 4 [L505] tmp = __VERIFIER_nondet_int() [L507] COND FALSE !(\read(tmp)) [L515] tmp___0 = __VERIFIER_nondet_int() [L517] COND FALSE !(\read(tmp___0)) [L525] tmp___2 = __VERIFIER_nondet_int() [L527] COND TRUE \read(tmp___2) [L423] int retValue_acc ; [L426] retValue_acc = pumpRunning [L427] return (retValue_acc); [L157] switchedOnBeforeTS = isPumpRunning() [L316] COND FALSE !(\read(pumpRunning)) [L323] COND TRUE \read(systemActive) [L371] int tmp ; [L374] COND FALSE !(\read(pumpRunning)) [L345] int tmp ; [L348] COND TRUE ! pumpRunning [L468] int retValue_acc ; [L469] int tmp ; [L470] int tmp___0 ; [L127] int retValue_acc ; [L130] COND TRUE waterLevel < 2 [L131] retValue_acc = 1 [L132] return (retValue_acc); [L474] tmp = isHighWaterSensorDry() [L476] COND TRUE \read(tmp) [L477] tmp___0 = 0 [L481] retValue_acc = tmp___0 [L482] return (retValue_acc); [L350] tmp = isHighWaterLevel() [L352] COND FALSE !(\read(tmp)) [L163] int tmp ; [L164] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L168] tmp = getWaterLevel() [L170] COND TRUE tmp != 2 [L423] int retValue_acc ; [L426] retValue_acc = pumpRunning [L427] return (retValue_acc); [L172] tmp___0 = isPumpRunning() [L174] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...