./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product32.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 249d62a54436f1843aa0e9d30b8a57435cee856a ................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-f470102 [2019-11-28 21:13:24,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:13:24,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:13:24,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:13:24,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:13:24,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:13:24,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:13:24,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:13:24,480 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:13:24,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:13:24,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:13:24,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:13:24,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:13:24,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:13:24,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:13:24,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:13:24,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:13:24,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:13:24,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:13:24,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:13:24,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:13:24,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:13:24,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:13:24,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:13:24,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:13:24,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:13:24,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:13:24,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:13:24,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:13:24,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:13:24,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:13:24,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:13:24,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:13:24,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:13:24,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:13:24,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:13:24,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:13:24,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:13:24,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:13:24,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:13:24,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:13:24,524 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:13:24,545 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:13:24,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:13:24,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:13:24,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:13:24,548 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:13:24,549 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:13:24,549 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:13:24,549 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:13:24,549 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:13:24,549 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:13:24,550 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:13:24,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:13:24,551 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:13:24,551 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:13:24,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:13:24,552 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:13:24,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:13:24,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:13:24,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:13:24,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:13:24,553 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:13:24,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:13:24,553 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:13:24,553 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:13:24,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:13:24,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:13:24,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:13:24,554 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:13:24,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:13:24,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:13:24,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:13:24,556 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:13:24,558 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:13:24,558 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 -> 249d62a54436f1843aa0e9d30b8a57435cee856a [2019-11-28 21:13:24,888 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:13:24,906 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:13:24,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:13:24,911 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:13:24,912 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:13:24,912 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product32.cil.c [2019-11-28 21:13:24,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fcc3dbf8/472deed1076e476c983eb66cac3c5a6c/FLAG881aea108 [2019-11-28 21:13:25,519 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:13:25,520 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product32.cil.c [2019-11-28 21:13:25,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fcc3dbf8/472deed1076e476c983eb66cac3c5a6c/FLAG881aea108 [2019-11-28 21:13:25,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fcc3dbf8/472deed1076e476c983eb66cac3c5a6c [2019-11-28 21:13:25,843 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:13:25,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:13:25,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:13:25,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:13:25,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:13:25,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:13:25" (1/1) ... [2019-11-28 21:13:25,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76344466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:25, skipping insertion in model container [2019-11-28 21:13:25,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:13:25" (1/1) ... [2019-11-28 21:13:25,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:13:25,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:13:26,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:13:26,307 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:13:26,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:13:26,455 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:13:26,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:26 WrapperNode [2019-11-28 21:13:26,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:13:26,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:13:26,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:13:26,457 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:13:26,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:26" (1/1) ... [2019-11-28 21:13:26,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:26" (1/1) ... [2019-11-28 21:13:26,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:13:26,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:13:26,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:13:26,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:13:26,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:26" (1/1) ... [2019-11-28 21:13:26,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:26" (1/1) ... [2019-11-28 21:13:26,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:26" (1/1) ... [2019-11-28 21:13:26,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:26" (1/1) ... [2019-11-28 21:13:26,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:26" (1/1) ... [2019-11-28 21:13:26,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:26" (1/1) ... [2019-11-28 21:13:26,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:26" (1/1) ... [2019-11-28 21:13:26,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:13:26,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:13:26,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:13:26,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:13:26,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:13:26,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:13:26,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:13:26,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:13:26,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:13:27,481 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:13:27,481 INFO L287 CfgBuilder]: Removed 176 assume(true) statements. [2019-11-28 21:13:27,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:13:27 BoogieIcfgContainer [2019-11-28 21:13:27,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:13:27,484 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:13:27,484 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:13:27,488 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:13:27,489 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:13:27,489 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:13:25" (1/3) ... [2019-11-28 21:13:27,491 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16d783d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:13:27, skipping insertion in model container [2019-11-28 21:13:27,491 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:13:27,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:26" (2/3) ... [2019-11-28 21:13:27,492 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16d783d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:13:27, skipping insertion in model container [2019-11-28 21:13:27,492 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:13:27,492 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:13:27" (3/3) ... [2019-11-28 21:13:27,494 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product32.cil.c [2019-11-28 21:13:27,548 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:13:27,549 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:13:27,550 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:13:27,550 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:13:27,550 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:13:27,550 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:13:27,550 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:13:27,551 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:13:27,577 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2019-11-28 21:13:27,623 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-11-28 21:13:27,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:13:27,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:13:27,633 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:27,634 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:27,634 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:13:27,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2019-11-28 21:13:27,641 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-11-28 21:13:27,641 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:13:27,641 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:13:27,642 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:27,642 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:27,649 INFO L794 eck$LassoCheckResult]: Stem: 87#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 8#L-1true havoc main_#res;havoc main_#t~ret1, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 9#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 7#L73true main_#t~ret1 := valid_product_#res;main_~tmp~0 := main_#t~ret1;havoc main_#t~ret1; 99#L167true assume 0 != main_~tmp~0; 46#L141true ~switchedOnBeforeTS~0 := 0; 89#L498true havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 12#L519-1true [2019-11-28 21:13:27,649 INFO L796 eck$LassoCheckResult]: Loop: 12#L519-1true assume !false; 26#L433true assume test_~splverifierCounter~0 < 4; 110#L434true test_~tmp~5 := test_#t~nondet23;havoc test_#t~nondet23; 15#L442true assume !(0 != test_~tmp~5); 4#L442-1true test_~tmp___0~1 := test_#t~nondet24;havoc test_#t~nondet24; 28#L452true assume !(0 != test_~tmp___0~1); 32#L452-1true test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 90#L462true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 106#L470-1true havoc __utac_acc__Specification5_spec__2_#t~ret27;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 39#L339true __utac_acc__Specification5_spec__2_#t~ret27 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret27;havoc __utac_acc__Specification5_spec__2_#t~ret27; 11#L508true assume !(0 != ~pumpRunning~0); 104#L211true assume !(0 != ~systemActive~0); 30#L218true havoc __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_#t~ret29, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 102#L982true __utac_acc__Specification5_spec__3_#t~ret28 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret28;havoc __utac_acc__Specification5_spec__3_#t~ret28; 10#L519true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 12#L519-1true [2019-11-28 21:13:27,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:27,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:13:27,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:27,667 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319005333] [2019-11-28 21:13:27,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:28,105 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:28,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:28,107 INFO L82 PathProgramCache]: Analyzing trace with hash 676518966, now seen corresponding path program 1 times [2019-11-28 21:13:28,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:28,108 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518243842] [2019-11-28 21:13:28,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:13:28,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:13:28,181 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518243842] [2019-11-28 21:13:28,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:13:28,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:13:28,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513358159] [2019-11-28 21:13:28,190 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:13:28,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:13:28,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:13:28,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:13:28,206 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 3 states. [2019-11-28 21:13:28,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:13:28,287 INFO L93 Difference]: Finished difference Result 219 states and 311 transitions. [2019-11-28 21:13:28,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:13:28,290 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 219 states and 311 transitions. [2019-11-28 21:13:28,296 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 142 [2019-11-28 21:13:28,304 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 219 states to 205 states and 296 transitions. [2019-11-28 21:13:28,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 205 [2019-11-28 21:13:28,307 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 205 [2019-11-28 21:13:28,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 205 states and 296 transitions. [2019-11-28 21:13:28,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:13:28,310 INFO L688 BuchiCegarLoop]: Abstraction has 205 states and 296 transitions. [2019-11-28 21:13:28,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states and 296 transitions. [2019-11-28 21:13:28,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 203. [2019-11-28 21:13:28,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-11-28 21:13:28,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 293 transitions. [2019-11-28 21:13:28,354 INFO L711 BuchiCegarLoop]: Abstraction has 203 states and 293 transitions. [2019-11-28 21:13:28,354 INFO L591 BuchiCegarLoop]: Abstraction has 203 states and 293 transitions. [2019-11-28 21:13:28,355 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:13:28,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 203 states and 293 transitions. [2019-11-28 21:13:28,358 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 140 [2019-11-28 21:13:28,358 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:13:28,358 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:13:28,359 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:28,360 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:28,360 INFO L794 eck$LassoCheckResult]: Stem: 446#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 350#L-1 havoc main_#res;havoc main_#t~ret1, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 351#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 348#L73 main_#t~ret1 := valid_product_#res;main_~tmp~0 := main_#t~ret1;havoc main_#t~ret1; 349#L167 assume 0 != main_~tmp~0; 413#L141 ~switchedOnBeforeTS~0 := 0; 414#L498 havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 447#L519-1 [2019-11-28 21:13:28,360 INFO L796 eck$LassoCheckResult]: Loop: 447#L519-1 assume !false; 489#L433 assume test_~splverifierCounter~0 < 4; 490#L434 test_~tmp~5 := test_#t~nondet23;havoc test_#t~nondet23; 523#L442 assume !(0 != test_~tmp~5); 520#L442-1 test_~tmp___0~1 := test_#t~nondet24;havoc test_#t~nondet24; 518#L452 assume !(0 != test_~tmp___0~1); 516#L452-1 test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 515#L462 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 449#L470-1 havoc __utac_acc__Specification5_spec__2_#t~ret27;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 513#L339 __utac_acc__Specification5_spec__2_#t~ret27 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret27;havoc __utac_acc__Specification5_spec__2_#t~ret27; 509#L508 assume !(0 != ~pumpRunning~0); 507#L211 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 506#L269 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret2, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 499#L243-1 assume !(0 != ~pumpRunning~0); 496#L218 havoc __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_#t~ret29, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 495#L982 __utac_acc__Specification5_spec__3_#t~ret28 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret28;havoc __utac_acc__Specification5_spec__3_#t~ret28; 493#L519 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 447#L519-1 [2019-11-28 21:13:28,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:28,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:13:28,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:28,361 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607043291] [2019-11-28 21:13:28,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:28,471 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:28,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:28,472 INFO L82 PathProgramCache]: Analyzing trace with hash -554713784, now seen corresponding path program 1 times [2019-11-28 21:13:28,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:28,472 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101145729] [2019-11-28 21:13:28,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:28,489 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:28,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:28,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1677326142, now seen corresponding path program 1 times [2019-11-28 21:13:28,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:28,490 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851747174] [2019-11-28 21:13:28,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:13:28,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:13:28,577 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851747174] [2019-11-28 21:13:28,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:13:28,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:13:28,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302549842] [2019-11-28 21:13:28,697 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2019-11-28 21:13:28,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:13:28,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:13:28,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:13:28,763 INFO L87 Difference]: Start difference. First operand 203 states and 293 transitions. cyclomatic complexity: 93 Second operand 5 states. [2019-11-28 21:13:29,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:13:29,018 INFO L93 Difference]: Finished difference Result 608 states and 873 transitions. [2019-11-28 21:13:29,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 21:13:29,019 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 608 states and 873 transitions. [2019-11-28 21:13:29,033 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 274 [2019-11-28 21:13:29,044 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 608 states to 608 states and 873 transitions. [2019-11-28 21:13:29,045 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 608 [2019-11-28 21:13:29,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 608 [2019-11-28 21:13:29,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 608 states and 873 transitions. [2019-11-28 21:13:29,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:13:29,066 INFO L688 BuchiCegarLoop]: Abstraction has 608 states and 873 transitions. [2019-11-28 21:13:29,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states and 873 transitions. [2019-11-28 21:13:29,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 399. [2019-11-28 21:13:29,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-11-28 21:13:29,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 565 transitions. [2019-11-28 21:13:29,107 INFO L711 BuchiCegarLoop]: Abstraction has 399 states and 565 transitions. [2019-11-28 21:13:29,107 INFO L591 BuchiCegarLoop]: Abstraction has 399 states and 565 transitions. [2019-11-28 21:13:29,107 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:13:29,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 399 states and 565 transitions. [2019-11-28 21:13:29,111 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 274 [2019-11-28 21:13:29,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:13:29,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:13:29,113 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:29,113 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] [2019-11-28 21:13:29,113 INFO L794 eck$LassoCheckResult]: Stem: 1291#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1177#L-1 havoc main_#res;havoc main_#t~ret1, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 1178#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1175#L73 main_#t~ret1 := valid_product_#res;main_~tmp~0 := main_#t~ret1;havoc main_#t~ret1; 1176#L167 assume 0 != main_~tmp~0; 1249#L141 ~switchedOnBeforeTS~0 := 0; 1250#L498 havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1292#L519-1 [2019-11-28 21:13:29,114 INFO L796 eck$LassoCheckResult]: Loop: 1292#L519-1 assume !false; 1410#L433 assume test_~splverifierCounter~0 < 4; 1411#L434 test_~tmp~5 := test_#t~nondet23;havoc test_#t~nondet23; 1500#L442 assume !(0 != test_~tmp~5); 1489#L442-1 test_~tmp___0~1 := test_#t~nondet24;havoc test_#t~nondet24; 1479#L452 assume !(0 != test_~tmp___0~1); 1446#L452-1 test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 1441#L462 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1437#L470-1 havoc __utac_acc__Specification5_spec__2_#t~ret27;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 1436#L339 __utac_acc__Specification5_spec__2_#t~ret27 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret27;havoc __utac_acc__Specification5_spec__2_#t~ret27; 1435#L508 assume !(0 != ~pumpRunning~0); 1432#L211 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1427#L269 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret2, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1420#L243-1 assume !(0 != ~pumpRunning~0); 1417#L218 havoc __utac_acc__Specification5_spec__3_#t~ret28, __utac_acc__Specification5_spec__3_#t~ret29, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 1416#L982 __utac_acc__Specification5_spec__3_#t~ret28 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret28;havoc __utac_acc__Specification5_spec__3_#t~ret28; 1415#L519 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 1414#L339-1 __utac_acc__Specification5_spec__3_#t~ret29 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret29;havoc __utac_acc__Specification5_spec__3_#t~ret29; 1413#L523 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1292#L519-1 [2019-11-28 21:13:29,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:29,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 21:13:29,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:29,116 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503391276] [2019-11-28 21:13:29,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:29,204 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:29,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:29,205 INFO L82 PathProgramCache]: Analyzing trace with hash -504014109, now seen corresponding path program 1 times [2019-11-28 21:13:29,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:29,206 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836133754] [2019-11-28 21:13:29,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:29,222 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:29,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:29,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1297698851, now seen corresponding path program 1 times [2019-11-28 21:13:29,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:29,223 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453944141] [2019-11-28 21:13:29,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:29,310 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:29,426 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-11-28 21:13:52,359 WARN L192 SmtUtils]: Spent 22.87 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:14:06,209 WARN L192 SmtUtils]: Spent 13.84 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:14:06,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:14:06 BoogieIcfgContainer [2019-11-28 21:14:06,296 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:14:06,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:14:06,297 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:14:06,297 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:14:06,302 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:13:27" (3/4) ... [2019-11-28 21:14:06,306 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:14:06,389 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:14:06,389 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:14:06,394 INFO L168 Benchmark]: Toolchain (without parser) took 40546.73 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 315.1 MB). Free memory was 959.0 MB in the beginning and 1.2 GB in the end (delta: -245.8 MB). Peak memory consumption was 69.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:06,394 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:14:06,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 610.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:06,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.84 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:06,397 INFO L168 Benchmark]: Boogie Preprocessor took 47.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:06,397 INFO L168 Benchmark]: RCFGBuilder took 889.51 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: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:06,398 INFO L168 Benchmark]: BuchiAutomizer took 38812.46 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 168.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -153.5 MB). Peak memory consumption was 374.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:06,398 INFO L168 Benchmark]: Witness Printer took 92.69 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:14:06,402 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 610.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 88.84 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 889.51 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: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 38812.46 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 168.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -153.5 MB). Peak memory consumption was 374.9 MB. Max. memory is 11.5 GB. * Witness Printer took 92.69 ms. Allocated memory is still 1.3 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 5 locations. The remainder module has 399 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 38.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 38.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 211 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 399 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 411 SDtfs, 727 SDslu, 637 SDs, 0 SdLazy, 107 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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: 432]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3397} State at position 1 is {NULL=3410, NULL=0, NULL=0, retValue_acc=1, retValue_acc=0, NULL=3397, NULL=3406, NULL=0, NULL=0, NULL=3422, NULL=3405, methaneLevelCritical=0, tmp=1, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a2253f2=0, NULL=0, NULL=3408, tmp___1=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=3409, \result=0, NULL=3404, NULL=3420, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=3407, NULL=0, NULL=0, NULL=0, NULL=3419, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp___0=0, tmp=1, NULL=3403, NULL=3401, \result=0, NULL=3400, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3cf42182=0, NULL=3418, NULL=3411, NULL=0, NULL=3413, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2927c9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2eadf54f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ed0609a=62, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@196ae7b5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4aa278c2=0, NULL=0, NULL=0, NULL=3412, NULL=3415, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ee72d91=0, NULL=0, retValue_acc=1, tmp___2=62, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=3398, NULL=3414, NULL=3416, tmp=0, head=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63a04f9d=0, NULL=3399, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28da4e3e=0, NULL=0, NULL=0, NULL=3417, NULL=3421, NULL=0, NULL=3402, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L78] int cleanupTimeShifts = 4; [L199] int pumpRunning = 0; [L200] int systemActive = 1; [L492] int switchedOnBeforeTS ; [L710] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L907] int waterLevel = 1; [L908] int methaneLevelCritical = 0; [L158] int retValue_acc ; [L159] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L165] tmp = valid_product() [L167] COND TRUE \read(tmp) [L497] switchedOnBeforeTS = 0 [L423] int splverifierCounter ; [L424] int tmp ; [L425] int tmp___0 ; [L426] int tmp___1 ; [L427] int tmp___2 ; [L430] splverifierCounter = 0 Loop: [L432] COND TRUE 1 [L434] COND TRUE splverifierCounter < 4 [L440] tmp = __VERIFIER_nondet_int() [L442] COND FALSE !(\read(tmp)) [L450] tmp___0 = __VERIFIER_nondet_int() [L452] COND FALSE !(\read(tmp___0)) [L460] tmp___2 = __VERIFIER_nondet_int() [L462] COND TRUE \read(tmp___2) [L417] systemActive = 1 [L335] int retValue_acc ; [L338] retValue_acc = pumpRunning [L339] return (retValue_acc); [L506] switchedOnBeforeTS = isPumpRunning() [L211] COND FALSE !(\read(pumpRunning)) [L218] COND TRUE \read(systemActive) [L266] int tmp ; [L269] COND FALSE !(\read(pumpRunning)) [L240] int tmp ; [L243] COND FALSE !(\read(pumpRunning)) [L512] int tmp ; [L513] int tmp___0 ; [L978] int retValue_acc ; [L981] retValue_acc = waterLevel [L982] return (retValue_acc); [L517] tmp = getWaterLevel() [L519] COND TRUE tmp != 2 [L335] int retValue_acc ; [L338] retValue_acc = pumpRunning [L339] return (retValue_acc); [L521] tmp___0 = isPumpRunning() [L523] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...