./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product63.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_spec4_product63.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 3f5feda30a80cf6aabd7a2a811c7fc0f92333d0d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 02:56:00,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 02:56:00,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 02:56:00,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 02:56:00,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 02:56:00,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 02:56:00,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 02:56:00,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 02:56:00,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 02:56:00,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 02:56:00,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 02:56:00,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 02:56:00,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 02:56:00,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 02:56:00,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 02:56:00,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 02:56:00,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 02:56:00,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 02:56:00,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 02:56:00,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 02:56:00,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 02:56:00,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 02:56:00,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 02:56:00,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 02:56:00,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 02:56:00,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 02:56:00,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 02:56:00,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 02:56:00,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 02:56:00,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 02:56:00,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 02:56:00,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 02:56:00,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 02:56:00,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 02:56:00,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 02:56:00,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 02:56:00,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 02:56:00,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 02:56:00,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 02:56:00,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 02:56:00,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 02:56:00,707 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 02:56:00,724 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 02:56:00,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 02:56:00,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 02:56:00,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 02:56:00,726 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 02:56:00,727 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 02:56:00,727 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 02:56:00,727 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 02:56:00,728 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 02:56:00,728 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 02:56:00,728 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 02:56:00,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 02:56:00,729 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 02:56:00,729 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 02:56:00,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 02:56:00,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 02:56:00,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 02:56:00,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 02:56:00,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 02:56:00,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 02:56:00,731 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 02:56:00,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 02:56:00,732 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 02:56:00,732 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 02:56:00,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 02:56:00,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 02:56:00,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 02:56:00,733 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 02:56:00,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 02:56:00,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 02:56:00,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 02:56:00,734 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 02:56:00,735 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 02:56:00,736 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 -> 3f5feda30a80cf6aabd7a2a811c7fc0f92333d0d [2020-07-29 02:56:01,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 02:56:01,095 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 02:56:01,099 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 02:56:01,101 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 02:56:01,102 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 02:56:01,103 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c [2020-07-29 02:56:01,183 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d5273e97/d1fff2871725404eb669b1376e9cb142/FLAGeea823d2e [2020-07-29 02:56:01,748 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 02:56:01,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c [2020-07-29 02:56:01,762 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d5273e97/d1fff2871725404eb669b1376e9cb142/FLAGeea823d2e [2020-07-29 02:56:02,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d5273e97/d1fff2871725404eb669b1376e9cb142 [2020-07-29 02:56:02,044 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 02:56:02,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 02:56:02,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 02:56:02,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 02:56:02,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 02:56:02,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:56:02" (1/1) ... [2020-07-29 02:56:02,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12fea4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:56:02, skipping insertion in model container [2020-07-29 02:56:02,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:56:02" (1/1) ... [2020-07-29 02:56:02,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 02:56:02,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 02:56:02,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:56:02,636 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 02:56:02,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:56:02,828 INFO L208 MainTranslator]: Completed translation [2020-07-29 02:56:02,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:56:02 WrapperNode [2020-07-29 02:56:02,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 02:56:02,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 02:56:02,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 02:56:02,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 02:56:02,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:56:02" (1/1) ... [2020-07-29 02:56:02,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:56:02" (1/1) ... [2020-07-29 02:56:02,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 02:56:02,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 02:56:02,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 02:56:02,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 02:56:02,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:56:02" (1/1) ... [2020-07-29 02:56:02,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:56:02" (1/1) ... [2020-07-29 02:56:02,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:56:02" (1/1) ... [2020-07-29 02:56:02,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:56:02" (1/1) ... [2020-07-29 02:56:03,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:56:02" (1/1) ... [2020-07-29 02:56:03,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:56:02" (1/1) ... [2020-07-29 02:56:03,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:56:02" (1/1) ... [2020-07-29 02:56:03,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 02:56:03,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 02:56:03,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 02:56:03,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 02:56:03,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:56:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:56:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 02:56:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-29 02:56:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 02:56:03,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 02:56:05,275 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 02:56:05,276 INFO L295 CfgBuilder]: Removed 352 assume(true) statements. [2020-07-29 02:56:05,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:56:05 BoogieIcfgContainer [2020-07-29 02:56:05,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 02:56:05,282 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 02:56:05,283 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 02:56:05,286 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 02:56:05,287 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:56:05,288 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 02:56:02" (1/3) ... [2020-07-29 02:56:05,289 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e886b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:56:05, skipping insertion in model container [2020-07-29 02:56:05,289 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:56:05,289 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:56:02" (2/3) ... [2020-07-29 02:56:05,290 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e886b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:56:05, skipping insertion in model container [2020-07-29 02:56:05,290 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:56:05,290 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:56:05" (3/3) ... [2020-07-29 02:56:05,292 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product63.cil.c [2020-07-29 02:56:05,343 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 02:56:05,344 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 02:56:05,344 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 02:56:05,344 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 02:56:05,344 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 02:56:05,344 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 02:56:05,345 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 02:56:05,345 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 02:56:05,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 224 states. [2020-07-29 02:56:05,440 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2020-07-29 02:56:05,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:56:05,440 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:56:05,448 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:56:05,448 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:56:05,448 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 02:56:05,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 224 states. [2020-07-29 02:56:05,469 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2020-07-29 02:56:05,469 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:56:05,470 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:56:05,471 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:56:05,475 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:56:05,483 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 6#L-1true havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 45#L532true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 195#L540true main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 196#L496true assume 0 != main_~tmp~3; 181#L469true havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 89#L556-1true [2020-07-29 02:56:05,483 INFO L796 eck$LassoCheckResult]: Loop: 89#L556-1true assume !false; 210#L960true assume test_~splverifierCounter~0 < 4; 198#L961true test_~tmp~11 := test_#t~nondet72;havoc test_#t~nondet72; 71#L969true assume !(0 != test_~tmp~11); 74#L969-1true test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 116#L979true assume !(0 != test_~tmp___0~3); 117#L979-1true test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 46#L989true assume 0 != test_~tmp___2~0; 16#L995-1true assume !(0 != ~pumpRunning~0); 218#L701true assume !(0 != ~systemActive~0); 50#L708true havoc __utac_acc__Specification4_spec__1_#t~ret37, __utac_acc__Specification4_spec__1_#t~ret38, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 3#L654true __utac_acc__Specification4_spec__1_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret37;havoc __utac_acc__Specification4_spec__1_#t~ret37; 86#L556true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 89#L556-1true [2020-07-29 02:56:05,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:56:05,491 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-07-29 02:56:05,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:56:05,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964111015] [2020-07-29 02:56:05,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:56:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:56:05,820 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:56:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:56:05,904 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:56:05,944 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:56:05,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:56:05,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1666538037, now seen corresponding path program 1 times [2020-07-29 02:56:05,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:56:05,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346751401] [2020-07-29 02:56:05,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:56:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:56:05,965 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:56:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:56:05,976 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:56:05,987 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:56:05,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:56:05,989 INFO L82 PathProgramCache]: Analyzing trace with hash 47740901, now seen corresponding path program 1 times [2020-07-29 02:56:05,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:56:05,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461338991] [2020-07-29 02:56:05,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:56:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:56:06,190 INFO L280 TraceCheckUtils]: 0: Hoare triple {232#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; {234#(= 1 ~systemActive~0)} is VALID [2020-07-29 02:56:06,192 INFO L280 TraceCheckUtils]: 1: Hoare triple {234#(= 1 ~systemActive~0)} havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {234#(= 1 ~systemActive~0)} is VALID [2020-07-29 02:56:06,193 INFO L280 TraceCheckUtils]: 2: Hoare triple {234#(= 1 ~systemActive~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {235#(= |ULTIMATE.start_valid_product_#res| ~systemActive~0)} is VALID [2020-07-29 02:56:06,194 INFO L280 TraceCheckUtils]: 3: Hoare triple {235#(= |ULTIMATE.start_valid_product_#res| ~systemActive~0)} main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; {236#(= ULTIMATE.start_main_~tmp~3 ~systemActive~0)} is VALID [2020-07-29 02:56:06,195 INFO L280 TraceCheckUtils]: 4: Hoare triple {236#(= ULTIMATE.start_main_~tmp~3 ~systemActive~0)} assume 0 != main_~tmp~3; {237#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:56:06,196 INFO L280 TraceCheckUtils]: 5: Hoare triple {237#(not (= 0 ~systemActive~0))} havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {237#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:56:06,197 INFO L280 TraceCheckUtils]: 6: Hoare triple {237#(not (= 0 ~systemActive~0))} assume !false; {237#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:56:06,197 INFO L280 TraceCheckUtils]: 7: Hoare triple {237#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0 < 4; {237#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:56:06,198 INFO L280 TraceCheckUtils]: 8: Hoare triple {237#(not (= 0 ~systemActive~0))} test_~tmp~11 := test_#t~nondet72;havoc test_#t~nondet72; {237#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:56:06,199 INFO L280 TraceCheckUtils]: 9: Hoare triple {237#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~11); {237#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:56:06,200 INFO L280 TraceCheckUtils]: 10: Hoare triple {237#(not (= 0 ~systemActive~0))} test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; {237#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:56:06,201 INFO L280 TraceCheckUtils]: 11: Hoare triple {237#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~3); {237#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:56:06,202 INFO L280 TraceCheckUtils]: 12: Hoare triple {237#(not (= 0 ~systemActive~0))} test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; {237#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:56:06,203 INFO L280 TraceCheckUtils]: 13: Hoare triple {237#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0; {237#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:56:06,204 INFO L280 TraceCheckUtils]: 14: Hoare triple {237#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {237#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:56:06,204 INFO L280 TraceCheckUtils]: 15: Hoare triple {237#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {233#false} is VALID [2020-07-29 02:56:06,205 INFO L280 TraceCheckUtils]: 16: Hoare triple {233#false} havoc __utac_acc__Specification4_spec__1_#t~ret37, __utac_acc__Specification4_spec__1_#t~ret38, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {233#false} is VALID [2020-07-29 02:56:06,205 INFO L280 TraceCheckUtils]: 17: Hoare triple {233#false} __utac_acc__Specification4_spec__1_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret37;havoc __utac_acc__Specification4_spec__1_#t~ret37; {233#false} is VALID [2020-07-29 02:56:06,206 INFO L280 TraceCheckUtils]: 18: Hoare triple {233#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); {233#false} is VALID [2020-07-29 02:56:06,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:56:06,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461338991] [2020-07-29 02:56:06,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:56:06,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-29 02:56:06,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108540797] [2020-07-29 02:56:06,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:56:06,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-29 02:56:06,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-29 02:56:06,339 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 6 states. [2020-07-29 02:56:08,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:56:08,547 INFO L93 Difference]: Finished difference Result 492 states and 714 transitions. [2020-07-29 02:56:08,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-29 02:56:08,549 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-29 02:56:08,590 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:56:08,593 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 492 states and 714 transitions. [2020-07-29 02:56:08,626 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 321 [2020-07-29 02:56:08,658 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 492 states to 471 states and 693 transitions. [2020-07-29 02:56:08,660 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 471 [2020-07-29 02:56:08,663 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 471 [2020-07-29 02:56:08,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 471 states and 693 transitions. [2020-07-29 02:56:08,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:56:08,672 INFO L688 BuchiCegarLoop]: Abstraction has 471 states and 693 transitions. [2020-07-29 02:56:08,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states and 693 transitions. [2020-07-29 02:56:08,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 258. [2020-07-29 02:56:08,719 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:56:08,720 INFO L82 GeneralOperation]: Start isEquivalent. First operand 471 states and 693 transitions. Second operand 258 states. [2020-07-29 02:56:08,720 INFO L74 IsIncluded]: Start isIncluded. First operand 471 states and 693 transitions. Second operand 258 states. [2020-07-29 02:56:08,722 INFO L87 Difference]: Start difference. First operand 471 states and 693 transitions. Second operand 258 states. [2020-07-29 02:56:08,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:56:08,750 INFO L93 Difference]: Finished difference Result 471 states and 693 transitions. [2020-07-29 02:56:08,751 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 693 transitions. [2020-07-29 02:56:08,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:56:08,756 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:56:08,756 INFO L74 IsIncluded]: Start isIncluded. First operand 258 states. Second operand 471 states and 693 transitions. [2020-07-29 02:56:08,757 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 471 states and 693 transitions. [2020-07-29 02:56:08,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:56:08,780 INFO L93 Difference]: Finished difference Result 471 states and 693 transitions. [2020-07-29 02:56:08,780 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 693 transitions. [2020-07-29 02:56:08,783 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:56:08,783 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:56:08,783 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:56:08,783 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:56:08,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-07-29 02:56:08,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 378 transitions. [2020-07-29 02:56:08,795 INFO L711 BuchiCegarLoop]: Abstraction has 258 states and 378 transitions. [2020-07-29 02:56:08,796 INFO L591 BuchiCegarLoop]: Abstraction has 258 states and 378 transitions. [2020-07-29 02:56:08,796 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 02:56:08,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 258 states and 378 transitions. [2020-07-29 02:56:08,799 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2020-07-29 02:56:08,799 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:56:08,799 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:56:08,800 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:56:08,800 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:56:08,800 INFO L794 eck$LassoCheckResult]: Stem: 859#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 740#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 741#L532 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 806#L540 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 939#L496 assume 0 != main_~tmp~3; 938#L469 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 788#L556-1 [2020-07-29 02:56:08,801 INFO L796 eck$LassoCheckResult]: Loop: 788#L556-1 assume !false; 854#L960 assume test_~splverifierCounter~0 < 4; 940#L961 test_~tmp~11 := test_#t~nondet72;havoc test_#t~nondet72; 837#L969 assume !(0 != test_~tmp~11); 839#L969-1 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 841#L979 assume !(0 != test_~tmp___0~3); 820#L979-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 807#L989 assume 0 != test_~tmp___2~0; 754#L995-1 assume !(0 != ~pumpRunning~0); 759#L701 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 822#L785 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~6;havoc processEnvironment__wrappee__methaneQuery_~tmp~6; 824#L759-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 880#L733-3 assume !(0 == ~pumpRunning~0); 813#L708 havoc __utac_acc__Specification4_spec__1_#t~ret37, __utac_acc__Specification4_spec__1_#t~ret38, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 734#L654 __utac_acc__Specification4_spec__1_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret37;havoc __utac_acc__Specification4_spec__1_#t~ret37; 735#L556 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 788#L556-1 [2020-07-29 02:56:08,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:56:08,801 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-07-29 02:56:08,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:56:08,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177555938] [2020-07-29 02:56:08,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:56:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:56:08,891 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:56:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:56:08,935 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:56:08,953 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:56:08,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:56:08,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1439331007, now seen corresponding path program 1 times [2020-07-29 02:56:08,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:56:08,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058251540] [2020-07-29 02:56:08,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:56:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:56:08,984 INFO L280 TraceCheckUtils]: 0: Hoare triple {1939#true} assume !false; {1939#true} is VALID [2020-07-29 02:56:08,985 INFO L280 TraceCheckUtils]: 1: Hoare triple {1939#true} assume test_~splverifierCounter~0 < 4; {1939#true} is VALID [2020-07-29 02:56:08,985 INFO L280 TraceCheckUtils]: 2: Hoare triple {1939#true} test_~tmp~11 := test_#t~nondet72;havoc test_#t~nondet72; {1939#true} is VALID [2020-07-29 02:56:08,985 INFO L280 TraceCheckUtils]: 3: Hoare triple {1939#true} assume !(0 != test_~tmp~11); {1939#true} is VALID [2020-07-29 02:56:08,985 INFO L280 TraceCheckUtils]: 4: Hoare triple {1939#true} test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; {1939#true} is VALID [2020-07-29 02:56:08,986 INFO L280 TraceCheckUtils]: 5: Hoare triple {1939#true} assume !(0 != test_~tmp___0~3); {1939#true} is VALID [2020-07-29 02:56:08,986 INFO L280 TraceCheckUtils]: 6: Hoare triple {1939#true} test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; {1939#true} is VALID [2020-07-29 02:56:08,986 INFO L280 TraceCheckUtils]: 7: Hoare triple {1939#true} assume 0 != test_~tmp___2~0; {1939#true} is VALID [2020-07-29 02:56:08,987 INFO L280 TraceCheckUtils]: 8: Hoare triple {1939#true} assume !(0 != ~pumpRunning~0); {1941#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 02:56:08,989 INFO L280 TraceCheckUtils]: 9: Hoare triple {1941#(= 0 ~pumpRunning~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; {1941#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 02:56:08,990 INFO L280 TraceCheckUtils]: 10: Hoare triple {1941#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~6;havoc processEnvironment__wrappee__methaneQuery_~tmp~6; {1941#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 02:56:08,990 INFO L280 TraceCheckUtils]: 11: Hoare triple {1941#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; {1941#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 02:56:08,995 INFO L280 TraceCheckUtils]: 12: Hoare triple {1941#(= 0 ~pumpRunning~0)} assume !(0 == ~pumpRunning~0); {1940#false} is VALID [2020-07-29 02:56:08,995 INFO L280 TraceCheckUtils]: 13: Hoare triple {1940#false} havoc __utac_acc__Specification4_spec__1_#t~ret37, __utac_acc__Specification4_spec__1_#t~ret38, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {1940#false} is VALID [2020-07-29 02:56:08,995 INFO L280 TraceCheckUtils]: 14: Hoare triple {1940#false} __utac_acc__Specification4_spec__1_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret37;havoc __utac_acc__Specification4_spec__1_#t~ret37; {1940#false} is VALID [2020-07-29 02:56:08,996 INFO L280 TraceCheckUtils]: 15: Hoare triple {1940#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); {1940#false} is VALID [2020-07-29 02:56:08,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:56:08,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058251540] [2020-07-29 02:56:08,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:56:08,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 02:56:08,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613717496] [2020-07-29 02:56:08,998 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 02:56:08,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:56:08,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 02:56:09,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 02:56:09,005 INFO L87 Difference]: Start difference. First operand 258 states and 378 transitions. cyclomatic complexity: 123 Second operand 3 states. [2020-07-29 02:56:09,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:56:09,499 INFO L93 Difference]: Finished difference Result 252 states and 346 transitions. [2020-07-29 02:56:09,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 02:56:09,499 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 02:56:09,517 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:56:09,518 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 252 states and 346 transitions. [2020-07-29 02:56:09,528 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2020-07-29 02:56:09,538 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 252 states to 252 states and 346 transitions. [2020-07-29 02:56:09,539 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 252 [2020-07-29 02:56:09,539 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 252 [2020-07-29 02:56:09,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 252 states and 346 transitions. [2020-07-29 02:56:09,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:56:09,540 INFO L688 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2020-07-29 02:56:09,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states and 346 transitions. [2020-07-29 02:56:09,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-07-29 02:56:09,553 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:56:09,553 INFO L82 GeneralOperation]: Start isEquivalent. First operand 252 states and 346 transitions. Second operand 252 states. [2020-07-29 02:56:09,555 INFO L74 IsIncluded]: Start isIncluded. First operand 252 states and 346 transitions. Second operand 252 states. [2020-07-29 02:56:09,556 INFO L87 Difference]: Start difference. First operand 252 states and 346 transitions. Second operand 252 states. [2020-07-29 02:56:09,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:56:09,567 INFO L93 Difference]: Finished difference Result 252 states and 346 transitions. [2020-07-29 02:56:09,567 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 346 transitions. [2020-07-29 02:56:09,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:56:09,568 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:56:09,568 INFO L74 IsIncluded]: Start isIncluded. First operand 252 states. Second operand 252 states and 346 transitions. [2020-07-29 02:56:09,568 INFO L87 Difference]: Start difference. First operand 252 states. Second operand 252 states and 346 transitions. [2020-07-29 02:56:09,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:56:09,578 INFO L93 Difference]: Finished difference Result 252 states and 346 transitions. [2020-07-29 02:56:09,578 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 346 transitions. [2020-07-29 02:56:09,579 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:56:09,579 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:56:09,579 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:56:09,579 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:56:09,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-07-29 02:56:09,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 346 transitions. [2020-07-29 02:56:09,605 INFO L711 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2020-07-29 02:56:09,606 INFO L591 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2020-07-29 02:56:09,606 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-29 02:56:09,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 252 states and 346 transitions. [2020-07-29 02:56:09,608 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2020-07-29 02:56:09,608 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:56:09,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:56:09,612 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:56:09,612 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] [2020-07-29 02:56:09,612 INFO L794 eck$LassoCheckResult]: Stem: 2357#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2228#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 2229#L532 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 2313#L540 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 2329#L496 assume 0 != main_~tmp~3; 2309#L469 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2310#L556-1 [2020-07-29 02:56:09,613 INFO L796 eck$LassoCheckResult]: Loop: 2310#L556-1 assume !false; 2355#L960 assume test_~splverifierCounter~0 < 4; 2339#L961 test_~tmp~11 := test_#t~nondet72;havoc test_#t~nondet72; 2340#L969 assume !(0 != test_~tmp~11); 2343#L969-1 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 2346#L979 assume !(0 != test_~tmp___0~3); 2328#L979-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 2315#L989 assume 0 != test_~tmp___2~0; 2252#L995-1 assume !(0 != ~pumpRunning~0); 2260#L701 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 2330#L785 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~6;havoc processEnvironment__wrappee__methaneQuery_~tmp~6; 2331#L759-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 2322#L733-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret70, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 2232#L662-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 2233#L667-3 isHighWaterLevel_#t~ret70 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret70;havoc isHighWaterLevel_#t~ret70; 2273#L904-9 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~1 := 0; 2236#L904-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 2219#L910-3 processEnvironment__wrappee__highWaterSensor_#t~ret49 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret49;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49; 2220#L737-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 2224#L708 havoc __utac_acc__Specification4_spec__1_#t~ret37, __utac_acc__Specification4_spec__1_#t~ret38, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 2423#L654 __utac_acc__Specification4_spec__1_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret37;havoc __utac_acc__Specification4_spec__1_#t~ret37; 2421#L556 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 2310#L556-1 [2020-07-29 02:56:09,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:56:09,614 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-07-29 02:56:09,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:56:09,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953814449] [2020-07-29 02:56:09,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:56:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:56:09,695 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:56:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:56:09,734 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:56:09,748 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:56:09,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:56:09,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1579572237, now seen corresponding path program 1 times [2020-07-29 02:56:09,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:56:09,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032052218] [2020-07-29 02:56:09,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:56:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:56:09,758 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:56:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:56:09,764 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:56:09,772 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:56:09,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:56:09,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1462089933, now seen corresponding path program 1 times [2020-07-29 02:56:09,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:56:09,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703024989] [2020-07-29 02:56:09,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:56:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:56:09,816 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:56:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:56:09,852 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:56:09,872 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:56:09,988 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-07-29 02:56:56,105 WARN L193 SmtUtils]: Spent 46.01 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2020-07-29 02:57:34,805 WARN L193 SmtUtils]: Spent 38.41 s on a formula simplification that was a NOOP. DAG size: 400 [2020-07-29 02:57:35,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 02:57:35 BoogieIcfgContainer [2020-07-29 02:57:35,054 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 02:57:35,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 02:57:35,055 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 02:57:35,055 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 02:57:35,056 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:56:05" (3/4) ... [2020-07-29 02:57:35,059 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 02:57:35,132 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 02:57:35,133 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 02:57:35,135 INFO L168 Benchmark]: Toolchain (without parser) took 93090.32 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 325.1 MB). Free memory was 953.5 MB in the beginning and 1.2 GB in the end (delta: -199.3 MB). Peak memory consumption was 125.7 MB. Max. memory is 11.5 GB. [2020-07-29 02:57:35,136 INFO L168 Benchmark]: CDTParser took 1.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:57:35,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 782.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -108.2 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2020-07-29 02:57:35,137 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2020-07-29 02:57:35,137 INFO L168 Benchmark]: Boogie Preprocessor took 106.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2020-07-29 02:57:35,138 INFO L168 Benchmark]: RCFGBuilder took 2231.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 850.1 MB in the end (delta: 197.9 MB). Peak memory consumption was 197.9 MB. Max. memory is 11.5 GB. [2020-07-29 02:57:35,138 INFO L168 Benchmark]: BuchiAutomizer took 89771.44 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 231.7 MB). Free memory was 850.1 MB in the beginning and 1.2 GB in the end (delta: -302.8 MB). Peak memory consumption was 256.5 MB. Max. memory is 11.5 GB. [2020-07-29 02:57:35,139 INFO L168 Benchmark]: Witness Printer took 78.68 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:57:35,142 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 1.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 782.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -108.2 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 112.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 106.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2231.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 850.1 MB in the end (delta: 197.9 MB). Peak memory consumption was 197.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 89771.44 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 231.7 MB). Free memory was 850.1 MB in the beginning and 1.2 GB in the end (delta: -302.8 MB). Peak memory consumption was 256.5 MB. Max. memory is 11.5 GB. * Witness Printer took 78.68 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 252 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 89.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 86.4s. Construction of modules took 0.3s. Büchi inclusion checks took 2.4s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 213 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 258 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 550 SDtfs, 1444 SDslu, 1274 SDs, 0 SdLazy, 85 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 959]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4769} State at position 1 is {NULL=0, NULL=4793, NULL=0, NULL=0, NULL=4769, NULL=4782, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=4777, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67dba079=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24ef0a39=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c44e109=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7de94cc0=0, NULL=0, NULL=0, NULL=0, tmp___1=0, NULL=4780, NULL=4787, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69f73b22=0, NULL=4786, tmp___0=0, NULL=4772, cleanupTimeShifts=4, NULL=4783, NULL=4771, tmp=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=4775, \result=1, NULL=0, NULL=0, \result=0, NULL=4794, NULL=0, NULL=0, \result=1, NULL=4785, head=0, pumpRunning=0, retValue_acc=1, NULL=4784, \result=0, NULL=4770, tmp=1, NULL=0, NULL=0, retValue_acc=1, \result=1, NULL=4792, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d640b00=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7afa7b3a=51, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@163c7637=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@357b32c4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11626668=0, NULL=4774, NULL=4778, NULL=4791, retValue_acc=0, tmp=1, tmp___0=0, retValue_acc=1, tmp___2=51, tmp=0, NULL=4773, splverifierCounter=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37501492=0, NULL=4779, head=0, NULL=0, NULL=4788, NULL=4790, NULL=0, NULL=4781, tmp=0, NULL=0, NULL=0, NULL=4789, NULL=0, tmp=0, NULL=4776} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L579] int waterLevel = 1; [L580] int methaneLevelCritical = 0; [L694] int pumpRunning = 0; [L695] int systemActive = 1; [L487] int retValue_acc ; [L488] int tmp ; [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L950] int splverifierCounter ; [L951] int tmp ; [L952] int tmp___0 ; [L953] int tmp___1 ; [L954] int tmp___2 ; [L957] splverifierCounter = 0 Loop: [L959] COND TRUE 1 [L961] COND TRUE splverifierCounter < 4 [L967] tmp = __VERIFIER_nondet_int() [L969] COND FALSE !(\read(tmp)) [L977] tmp___0 = __VERIFIER_nondet_int() [L979] COND FALSE !(\read(tmp___0)) [L987] tmp___2 = __VERIFIER_nondet_int() [L989] COND TRUE \read(tmp___2) [L701] COND FALSE !(\read(pumpRunning)) [L708] COND TRUE \read(systemActive) [L782] int tmp ; [L785] COND FALSE !(\read(pumpRunning)) [L756] int tmp ; [L759] COND FALSE !(\read(pumpRunning)) [L730] int tmp ; [L733] COND TRUE ! pumpRunning [L896] int retValue_acc ; [L897] int tmp ; [L898] int tmp___0 ; [L659] int retValue_acc ; [L662] COND TRUE waterLevel < 2 [L663] retValue_acc = 1 [L664] return (retValue_acc); [L902] tmp = isHighWaterSensorDry() [L904] COND TRUE \read(tmp) [L905] tmp___0 = 0 [L909] retValue_acc = tmp___0 [L910] return (retValue_acc); [L735] tmp = isHighWaterLevel() [L737] COND FALSE !(\read(tmp)) [L549] int tmp ; [L550] int tmp___0 ; [L650] int retValue_acc ; [L653] retValue_acc = waterLevel [L654] return (retValue_acc); [L554] tmp = getWaterLevel() [L556] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...