./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product58.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 b6539c3f80a02f7679497281344dc3da1a82da6c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:31:26,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:31:26,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:31:26,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:31:26,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:31:26,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:31:26,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:31:26,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:31:26,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:31:26,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:31:26,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:31:26,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:31:26,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:31:26,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:31:26,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:31:26,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:31:26,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:31:26,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:31:26,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:31:26,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:31:26,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:31:26,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:31:26,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:31:26,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:31:26,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:31:26,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:31:26,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:31:26,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:31:26,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:31:26,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:31:26,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:31:26,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:31:26,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:31:26,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:31:26,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:31:26,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:31:26,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:31:26,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:31:26,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:31:26,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:31:26,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:31:26,454 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:31:26,477 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:31:26,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:31:26,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:31:26,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:31:26,480 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:31:26,480 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:31:26,481 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:31:26,481 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:31:26,481 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:31:26,481 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:31:26,483 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:31:26,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:31:26,483 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:31:26,484 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:31:26,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:31:26,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:31:26,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:31:26,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:31:26,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:31:26,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:31:26,486 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:31:26,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:31:26,486 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:31:26,487 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:31:26,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:31:26,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:31:26,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:31:26,488 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:31:26,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:31:26,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:31:26,488 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:31:26,492 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:31:26,492 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 -> b6539c3f80a02f7679497281344dc3da1a82da6c [2019-11-28 03:31:26,783 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:31:26,796 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:31:26,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:31:26,801 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:31:26,801 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:31:26,802 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c [2019-11-28 03:31:26,864 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e05c7bf7b/7d03816bb7114f928efcf30a54d732d7/FLAG054fd1ef0 [2019-11-28 03:31:27,416 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:31:27,417 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c [2019-11-28 03:31:27,431 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e05c7bf7b/7d03816bb7114f928efcf30a54d732d7/FLAG054fd1ef0 [2019-11-28 03:31:27,699 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e05c7bf7b/7d03816bb7114f928efcf30a54d732d7 [2019-11-28 03:31:27,702 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:31:27,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:31:27,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:31:27,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:31:27,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:31:27,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:31:27" (1/1) ... [2019-11-28 03:31:27,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@564c4a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:27, skipping insertion in model container [2019-11-28 03:31:27,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:31:27" (1/1) ... [2019-11-28 03:31:27,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:31:27,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:31:28,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:31:28,189 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:31:28,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:31:28,355 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:31:28,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:28 WrapperNode [2019-11-28 03:31:28,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:31:28,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:31:28,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:31:28,357 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:31:28,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:28" (1/1) ... [2019-11-28 03:31:28,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:28" (1/1) ... [2019-11-28 03:31:28,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:31:28,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:31:28,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:31:28,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:31:28,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:28" (1/1) ... [2019-11-28 03:31:28,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:28" (1/1) ... [2019-11-28 03:31:28,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:28" (1/1) ... [2019-11-28 03:31:28,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:28" (1/1) ... [2019-11-28 03:31:28,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:28" (1/1) ... [2019-11-28 03:31:28,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:28" (1/1) ... [2019-11-28 03:31:28,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:28" (1/1) ... [2019-11-28 03:31:28,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:31:28,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:31:28,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:31:28,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:31:28,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:31:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:31:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 03:31:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:31:28,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:31:29,601 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:31:29,602 INFO L297 CfgBuilder]: Removed 196 assume(true) statements. [2019-11-28 03:31:29,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:31:29 BoogieIcfgContainer [2019-11-28 03:31:29,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:31:29,604 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:31:29,604 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:31:29,608 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:31:29,609 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:31:29,609 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:31:27" (1/3) ... [2019-11-28 03:31:29,611 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fdb1aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:31:29, skipping insertion in model container [2019-11-28 03:31:29,611 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:31:29,611 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:28" (2/3) ... [2019-11-28 03:31:29,612 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fdb1aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:31:29, skipping insertion in model container [2019-11-28 03:31:29,612 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:31:29,612 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:31:29" (3/3) ... [2019-11-28 03:31:29,614 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product58.cil.c [2019-11-28 03:31:29,667 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:31:29,668 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:31:29,668 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:31:29,668 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:31:29,669 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:31:29,669 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:31:29,669 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:31:29,670 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:31:29,699 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 136 states. [2019-11-28 03:31:29,748 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2019-11-28 03:31:29,749 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:31:29,749 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:31:29,759 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:29,760 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:29,760 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:31:29,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 136 states. [2019-11-28 03:31:29,772 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2019-11-28 03:31:29,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:31:29,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:31:29,773 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:29,774 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:29,780 INFO L794 eck$LassoCheckResult]: Stem: 112#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 11#L-1true havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 135#L880true havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 3#L888true main_#t~ret74 := valid_product_#res;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 17#L976true assume 0 != main_~tmp~10; 116#L952true ~methAndRunningLastTime~0 := 0; 6#L822true havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 8#L833-1true [2019-11-28 03:31:29,781 INFO L796 eck$LassoCheckResult]: Loop: 8#L833-1true assume !false; 113#L531true assume test_~splverifierCounter~0 < 4; 54#L532true test_~tmp~3 := test_#t~nondet45;havoc test_#t~nondet45; 84#L540true assume !(0 != test_~tmp~3); 87#L540-1true test_~tmp___0~0 := test_#t~nondet46;havoc test_#t~nondet46; 120#L550true assume !(0 != test_~tmp___0~0); 121#L550-1true test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 40#L560true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 51#L568-2true assume !(0 != ~pumpRunning~0); 4#L599true assume !(0 != ~systemActive~0); 80#L606true havoc __utac_acc__Specification2_spec__2_#t~ret71, __utac_acc__Specification2_spec__2_#t~ret72, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 110#L91-2true __utac_acc__Specification2_spec__2_#t~ret71 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret71;havoc __utac_acc__Specification2_spec__2_#t~ret71; 5#L833true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 8#L833-1true [2019-11-28 03:31:29,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:29,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 03:31:29,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:29,801 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403407418] [2019-11-28 03:31:29,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:30,218 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:30,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:30,219 INFO L82 PathProgramCache]: Analyzing trace with hash 6139403, now seen corresponding path program 1 times [2019-11-28 03:31:30,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:30,220 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390550648] [2019-11-28 03:31:30,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:31:30,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:31:30,300 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390550648] [2019-11-28 03:31:30,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:31:30,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:31:30,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271757269] [2019-11-28 03:31:30,311 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:31:30,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:31:30,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:31:30,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:31:30,333 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 3 states. [2019-11-28 03:31:30,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:31:30,395 INFO L93 Difference]: Finished difference Result 136 states and 195 transitions. [2019-11-28 03:31:30,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:31:30,398 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 136 states and 195 transitions. [2019-11-28 03:31:30,402 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2019-11-28 03:31:30,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 136 states to 129 states and 187 transitions. [2019-11-28 03:31:30,410 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 129 [2019-11-28 03:31:30,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 129 [2019-11-28 03:31:30,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 129 states and 187 transitions. [2019-11-28 03:31:30,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:31:30,414 INFO L688 BuchiCegarLoop]: Abstraction has 129 states and 187 transitions. [2019-11-28 03:31:30,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states and 187 transitions. [2019-11-28 03:31:30,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-11-28 03:31:30,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-11-28 03:31:30,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 187 transitions. [2019-11-28 03:31:30,457 INFO L711 BuchiCegarLoop]: Abstraction has 129 states and 187 transitions. [2019-11-28 03:31:30,457 INFO L591 BuchiCegarLoop]: Abstraction has 129 states and 187 transitions. [2019-11-28 03:31:30,457 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:31:30,457 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states and 187 transitions. [2019-11-28 03:31:30,460 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2019-11-28 03:31:30,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:31:30,460 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:31:30,461 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:30,461 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:30,462 INFO L794 eck$LassoCheckResult]: Stem: 404#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 299#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 300#L880 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 281#L888 main_#t~ret74 := valid_product_#res;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 282#L976 assume 0 != main_~tmp~10; 308#L952 ~methAndRunningLastTime~0 := 0; 288#L822 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 286#L833-1 [2019-11-28 03:31:30,462 INFO L796 eck$LassoCheckResult]: Loop: 286#L833-1 assume !false; 292#L531 assume test_~splverifierCounter~0 < 4; 354#L532 test_~tmp~3 := test_#t~nondet45;havoc test_#t~nondet45; 355#L540 assume !(0 != test_~tmp~3); 389#L540-1 test_~tmp___0~0 := test_#t~nondet46;havoc test_#t~nondet46; 392#L550 assume !(0 != test_~tmp___0~0); 365#L550-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 339#L560 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 341#L568-2 assume !(0 != ~pumpRunning~0); 283#L599 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 284#L657 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 378#L631-1 assume !(0 == ~pumpRunning~0); 374#L606 havoc __utac_acc__Specification2_spec__2_#t~ret71, __utac_acc__Specification2_spec__2_#t~ret72, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 386#L91-2 __utac_acc__Specification2_spec__2_#t~ret71 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret71;havoc __utac_acc__Specification2_spec__2_#t~ret71; 285#L833 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 286#L833-1 [2019-11-28 03:31:30,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:30,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 03:31:30,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:30,463 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101176496] [2019-11-28 03:31:30,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:30,622 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:30,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:30,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1675691820, now seen corresponding path program 1 times [2019-11-28 03:31:30,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:30,624 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888500487] [2019-11-28 03:31:30,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:31:30,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:31:30,646 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888500487] [2019-11-28 03:31:30,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:31:30,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:31:30,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588739194] [2019-11-28 03:31:30,647 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:31:30,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:31:30,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:31:30,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:31:30,648 INFO L87 Difference]: Start difference. First operand 129 states and 187 transitions. cyclomatic complexity: 60 Second operand 3 states. [2019-11-28 03:31:30,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:31:30,782 INFO L93 Difference]: Finished difference Result 173 states and 241 transitions. [2019-11-28 03:31:30,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:31:30,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 173 states and 241 transitions. [2019-11-28 03:31:30,787 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2019-11-28 03:31:30,789 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 173 states to 173 states and 241 transitions. [2019-11-28 03:31:30,790 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 173 [2019-11-28 03:31:30,791 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 173 [2019-11-28 03:31:30,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 173 states and 241 transitions. [2019-11-28 03:31:30,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:31:30,793 INFO L688 BuchiCegarLoop]: Abstraction has 173 states and 241 transitions. [2019-11-28 03:31:30,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states and 241 transitions. [2019-11-28 03:31:30,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2019-11-28 03:31:30,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2019-11-28 03:31:30,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 241 transitions. [2019-11-28 03:31:30,805 INFO L711 BuchiCegarLoop]: Abstraction has 173 states and 241 transitions. [2019-11-28 03:31:30,805 INFO L591 BuchiCegarLoop]: Abstraction has 173 states and 241 transitions. [2019-11-28 03:31:30,805 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:31:30,805 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 173 states and 241 transitions. [2019-11-28 03:31:30,808 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2019-11-28 03:31:30,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:31:30,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:31:30,809 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:30,809 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] [2019-11-28 03:31:30,810 INFO L794 eck$LassoCheckResult]: Stem: 715#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 606#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 607#L880 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 589#L888 main_#t~ret74 := valid_product_#res;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 590#L976 assume 0 != main_~tmp~10; 618#L952 ~methAndRunningLastTime~0 := 0; 596#L822 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 594#L833-1 [2019-11-28 03:31:30,810 INFO L796 eck$LassoCheckResult]: Loop: 594#L833-1 assume !false; 599#L531 assume test_~splverifierCounter~0 < 4; 663#L532 test_~tmp~3 := test_#t~nondet45;havoc test_#t~nondet45; 664#L540 assume !(0 != test_~tmp~3); 702#L540-1 test_~tmp___0~0 := test_#t~nondet46;havoc test_#t~nondet46; 703#L550 assume !(0 != test_~tmp___0~0); 672#L550-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 647#L560 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 649#L568-2 assume !(0 != ~pumpRunning~0); 591#L599 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 592#L657 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 687#L631-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 614#L131-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 615#L136-1 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 634#L777-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 654#L777-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 621#L783-1 processEnvironment__wrappee__highWaterSensor_#t~ret49 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret49;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49; 622#L635-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 696#L606 havoc __utac_acc__Specification2_spec__2_#t~ret71, __utac_acc__Specification2_spec__2_#t~ret72, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 697#L91-2 __utac_acc__Specification2_spec__2_#t~ret71 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret71;havoc __utac_acc__Specification2_spec__2_#t~ret71; 593#L833 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 594#L833-1 [2019-11-28 03:31:30,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:30,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 03:31:30,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:30,812 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556308230] [2019-11-28 03:31:30,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:30,914 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:30,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:30,915 INFO L82 PathProgramCache]: Analyzing trace with hash 2063430786, now seen corresponding path program 1 times [2019-11-28 03:31:30,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:30,915 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871626421] [2019-11-28 03:31:30,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:31:30,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:31:30,954 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871626421] [2019-11-28 03:31:30,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:31:30,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 03:31:30,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824750644] [2019-11-28 03:31:30,956 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:31:30,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:31:30,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 03:31:30,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 03:31:30,957 INFO L87 Difference]: Start difference. First operand 173 states and 241 transitions. cyclomatic complexity: 70 Second operand 4 states. [2019-11-28 03:31:31,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:31:31,109 INFO L93 Difference]: Finished difference Result 481 states and 661 transitions. [2019-11-28 03:31:31,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 03:31:31,110 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 481 states and 661 transitions. [2019-11-28 03:31:31,116 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 338 [2019-11-28 03:31:31,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 481 states to 481 states and 661 transitions. [2019-11-28 03:31:31,121 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 481 [2019-11-28 03:31:31,123 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 481 [2019-11-28 03:31:31,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 481 states and 661 transitions. [2019-11-28 03:31:31,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:31:31,126 INFO L688 BuchiCegarLoop]: Abstraction has 481 states and 661 transitions. [2019-11-28 03:31:31,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states and 661 transitions. [2019-11-28 03:31:31,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 185. [2019-11-28 03:31:31,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2019-11-28 03:31:31,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 253 transitions. [2019-11-28 03:31:31,142 INFO L711 BuchiCegarLoop]: Abstraction has 185 states and 253 transitions. [2019-11-28 03:31:31,142 INFO L591 BuchiCegarLoop]: Abstraction has 185 states and 253 transitions. [2019-11-28 03:31:31,142 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:31:31,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 185 states and 253 transitions. [2019-11-28 03:31:31,144 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2019-11-28 03:31:31,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:31:31,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:31:31,146 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:31,146 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] [2019-11-28 03:31:31,146 INFO L794 eck$LassoCheckResult]: Stem: 1391#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 1271#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 1272#L880 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 1253#L888 main_#t~ret74 := valid_product_#res;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 1254#L976 assume 0 != main_~tmp~10; 1286#L952 ~methAndRunningLastTime~0 := 0; 1260#L822 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1258#L833-1 [2019-11-28 03:31:31,146 INFO L796 eck$LassoCheckResult]: Loop: 1258#L833-1 assume !false; 1263#L531 assume test_~splverifierCounter~0 < 4; 1336#L532 test_~tmp~3 := test_#t~nondet45;havoc test_#t~nondet45; 1337#L540 assume !(0 != test_~tmp~3); 1378#L540-1 test_~tmp___0~0 := test_#t~nondet46;havoc test_#t~nondet46; 1379#L550 assume !(0 != test_~tmp___0~0); 1347#L550-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 1315#L560 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1317#L568-2 assume !(0 != ~pumpRunning~0); 1331#L599 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1401#L657 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 1362#L631-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1280#L131-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1281#L136-1 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 1345#L777-3 assume !(0 != isHighWaterLevel_~tmp~7);isHighWaterLevel_~tmp___0~1 := 1; 1324#L777-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 1289#L783-1 processEnvironment__wrappee__highWaterSensor_#t~ret49 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret49;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49; 1290#L635-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 1371#L606 havoc __utac_acc__Specification2_spec__2_#t~ret71, __utac_acc__Specification2_spec__2_#t~ret72, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1372#L91-2 __utac_acc__Specification2_spec__2_#t~ret71 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret71;havoc __utac_acc__Specification2_spec__2_#t~ret71; 1257#L833 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 1258#L833-1 [2019-11-28 03:31:31,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:31,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-28 03:31:31,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:31,148 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015317987] [2019-11-28 03:31:31,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:31,222 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:31,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:31,223 INFO L82 PathProgramCache]: Analyzing trace with hash -456529148, now seen corresponding path program 1 times [2019-11-28 03:31:31,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:31,224 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249942606] [2019-11-28 03:31:31,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:31:31,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:31:31,298 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249942606] [2019-11-28 03:31:31,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:31:31,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 03:31:31,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780132095] [2019-11-28 03:31:31,300 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:31:31,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:31:31,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 03:31:31,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 03:31:31,301 INFO L87 Difference]: Start difference. First operand 185 states and 253 transitions. cyclomatic complexity: 70 Second operand 5 states. [2019-11-28 03:31:31,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:31:31,478 INFO L93 Difference]: Finished difference Result 545 states and 745 transitions. [2019-11-28 03:31:31,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 03:31:31,479 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 545 states and 745 transitions. [2019-11-28 03:31:31,484 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 388 [2019-11-28 03:31:31,489 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 545 states to 545 states and 745 transitions. [2019-11-28 03:31:31,489 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 545 [2019-11-28 03:31:31,490 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 545 [2019-11-28 03:31:31,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 545 states and 745 transitions. [2019-11-28 03:31:31,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:31:31,492 INFO L688 BuchiCegarLoop]: Abstraction has 545 states and 745 transitions. [2019-11-28 03:31:31,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states and 745 transitions. [2019-11-28 03:31:31,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 203. [2019-11-28 03:31:31,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-11-28 03:31:31,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 271 transitions. [2019-11-28 03:31:31,517 INFO L711 BuchiCegarLoop]: Abstraction has 203 states and 271 transitions. [2019-11-28 03:31:31,517 INFO L591 BuchiCegarLoop]: Abstraction has 203 states and 271 transitions. [2019-11-28 03:31:31,517 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 03:31:31,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 203 states and 271 transitions. [2019-11-28 03:31:31,520 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 138 [2019-11-28 03:31:31,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:31:31,521 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:31:31,522 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:31,523 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] [2019-11-28 03:31:31,523 INFO L794 eck$LassoCheckResult]: Stem: 2144#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 2012#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 2013#L880 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 1997#L888 main_#t~ret74 := valid_product_#res;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 1998#L976 assume 0 != main_~tmp~10; 2028#L952 ~methAndRunningLastTime~0 := 0; 2004#L822 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2002#L833-1 [2019-11-28 03:31:31,524 INFO L796 eck$LassoCheckResult]: Loop: 2002#L833-1 assume !false; 2007#L531 assume test_~splverifierCounter~0 < 4; 2085#L532 test_~tmp~3 := test_#t~nondet45;havoc test_#t~nondet45; 2086#L540 assume !(0 != test_~tmp~3); 2126#L540-1 test_~tmp___0~0 := test_#t~nondet46;havoc test_#t~nondet46; 2129#L550 assume !(0 != test_~tmp___0~0); 2098#L550-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 2064#L560 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2066#L568-2 assume !(0 != ~pumpRunning~0); 1999#L599 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 2000#L657 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 2112#L631-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 2025#L131-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 2027#L136-1 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 2165#L777-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 2074#L777-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 2034#L783-1 processEnvironment__wrappee__highWaterSensor_#t~ret49 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret49;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49; 2035#L635-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 2121#L606 havoc __utac_acc__Specification2_spec__2_#t~ret71, __utac_acc__Specification2_spec__2_#t~ret72, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 2123#L91-2 __utac_acc__Specification2_spec__2_#t~ret71 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret71;havoc __utac_acc__Specification2_spec__2_#t~ret71; 2001#L833 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 2002#L833-1 [2019-11-28 03:31:31,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:31,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 5 times [2019-11-28 03:31:31,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:31,526 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135302651] [2019-11-28 03:31:31,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:31,641 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:31,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:31,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1383372416, now seen corresponding path program 1 times [2019-11-28 03:31:31,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:31,643 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150348651] [2019-11-28 03:31:31,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:31,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:31,667 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:31,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:31,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1138453254, now seen corresponding path program 1 times [2019-11-28 03:31:31,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:31,676 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153882409] [2019-11-28 03:31:31,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:31,796 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:31,956 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-11-28 03:31:55,536 WARN L192 SmtUtils]: Spent 23.48 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 03:32:10,399 WARN L192 SmtUtils]: Spent 14.85 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 03:32:10,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:32:10 BoogieIcfgContainer [2019-11-28 03:32:10,498 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:32:10,498 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:32:10,498 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:32:10,499 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:32:10,499 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:31:29" (3/4) ... [2019-11-28 03:32:10,503 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:32:10,568 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:32:10,568 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:32:10,570 INFO L168 Benchmark]: Toolchain (without parser) took 42867.11 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 317.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 146.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:10,571 INFO L168 Benchmark]: CDTParser took 0.25 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 03:32:10,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -161.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:10,572 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:10,572 INFO L168 Benchmark]: Boogie Preprocessor took 53.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:32:10,574 INFO L168 Benchmark]: RCFGBuilder took 1110.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.7 MB). Peak memory consumption was 71.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:10,580 INFO L168 Benchmark]: BuchiAutomizer took 40893.49 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.6 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -96.8 MB). Peak memory consumption was 383.0 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:10,581 INFO L168 Benchmark]: Witness Printer took 70.27 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:10,591 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 652.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -161.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 82.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1110.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.7 MB). Peak memory consumption was 71.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 40893.49 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.6 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -96.8 MB). Peak memory consumption was 383.0 MB. Max. memory is 11.5 GB. * Witness Printer took 70.27 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 203 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 40.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 39.9s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 638 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 203 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1027 SDtfs, 1295 SDslu, 1177 SDs, 0 SdLazy, 184 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 530]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5753} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=5758, NULL=5753, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12fb6fc2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9bb4fb2=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7787dfe3=70, NULL=5759, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49444ef9=0, NULL=0, NULL=5768, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68678cc9=0, NULL=0, retValue_acc=1, NULL=5775, NULL=5778, methaneLevelCritical=0, NULL=5763, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20c78d31=0, tmp___0=0, tmp=0, NULL=5767, NULL=0, NULL=5777, NULL=0, retValue_acc=0, NULL=5783, tmp___1=0, NULL=5771, NULL=5770, NULL=5765, tmp=0, cleanupTimeShifts=4, NULL=5761, NULL=5766, tmp=1, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=5756, \result=0, NULL=0, tmp___0=0, NULL=5755, NULL=0, NULL=0, \result=1, retValue_acc=0, head=0, pumpRunning=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@537501c4=0, NULL=5773, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@754c7fb1=0, NULL=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f838d94=0, NULL=5764, tmp=1, tmp___0=0, tmp___2=70, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1fd0f7d9=0, NULL=5772, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=5769, head=0, NULL=0, tmp=0, NULL=5774, NULL=0, NULL=0, NULL=5762, NULL=0, NULL=5760, NULL=5757, NULL=5779, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L320] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L591] int pumpRunning = 0; [L592] int systemActive = 1; [L816] int methAndRunningLastTime ; [L893] int cleanupTimeShifts = 4; [L967] int retValue_acc ; [L968] int tmp ; [L884] int retValue_acc ; [L887] retValue_acc = 1 [L888] return (retValue_acc); [L974] tmp = valid_product() [L976] COND TRUE \read(tmp) [L821] methAndRunningLastTime = 0 [L521] int splverifierCounter ; [L522] int tmp ; [L523] int tmp___0 ; [L524] int tmp___1 ; [L525] int tmp___2 ; [L528] splverifierCounter = 0 Loop: [L530] COND TRUE 1 [L532] COND TRUE splverifierCounter < 4 [L538] tmp = __VERIFIER_nondet_int() [L540] COND FALSE !(\read(tmp)) [L548] tmp___0 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___0)) [L558] tmp___2 = __VERIFIER_nondet_int() [L560] COND TRUE \read(tmp___2) [L810] systemActive = 1 [L599] COND FALSE !(\read(pumpRunning)) [L606] COND TRUE \read(systemActive) [L654] int tmp ; [L657] COND FALSE !(\read(pumpRunning)) [L628] int tmp ; [L631] COND TRUE ! pumpRunning [L769] int retValue_acc ; [L770] int tmp ; [L771] int tmp___0 ; [L128] int retValue_acc ; [L131] COND TRUE waterLevel < 2 [L132] retValue_acc = 1 [L133] return (retValue_acc); [L775] tmp = isHighWaterSensorDry() [L777] COND TRUE \read(tmp) [L778] tmp___0 = 0 [L782] retValue_acc = tmp___0 [L783] return (retValue_acc); [L633] tmp = isHighWaterLevel() [L635] COND FALSE !(\read(tmp)) [L826] int tmp ; [L827] int tmp___0 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L831] tmp = isMethaneLevelCritical() [L833] COND FALSE !(\read(tmp)) [L849] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...